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I recently bought an official o2 mains charger for my exec. It works exactly as expected, except for one thing!
It's giving me an electric shock! A very mild one, but it's there. The metal part on the top of the exec is getting electrified when charging with the mains charger.
Does anyone else with the mains charger experience this? I only noticed it when I rubbed my finger across it, it felt more "textured" than usual.
DaWolfey said:
I recently bought an official o2 mains charger for my exec. It works exactly as expected, except for one thing!
It's giving me an electric shock! A very mild one, but it's there. The metal part on the top of the exec is getting electrified when charging with the mains charger.
Does anyone else with the mains charger experience this? I only noticed it when I rubbed my finger across it, it felt more "textured" than usual.
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Yes. I thought that was normal?
belfast-biker said:
Yes. I thought that was normal?
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It doesn't seem very normal to me... certainly not what you'd expect at least.
YES. I noticed it the first time i charged it up. I showed it to other people but they couldnt feel it. Now I know I am not alone. I wouldnt have said it was normal, but i have got used to it.
Euan
My m5000 does this too.
The easiest way to feel it is to softly stroke the metal pad on the lid with the case closed. It feels kinda nice, but is definately current.
My JasJar, IIs and my old Xda II also did this. But only those. Perhaps it's not earthed well?
Qtek 9000 has this too
You'll be surprised how many devices have this, actually. However, it shouldn't be of any concern - it's OK'd by law in most countries. Compare it, if you will, to one of those cheap halogen light desklamps ( http://www.lightwindow.com/desklamp/500/halogen/129bl.jpg ). The 12V goes straight through the telescoping metal tubing itself, and if you rub your fingers along one side while holding the other, you'll get the same sensation. That's why they often have a little warning label with them about not hanging any necklaces over them, or it will shortcircuit ( easily tested.. it just sparks a little, but I wouldn't recommend doing it ). The power rating for these lamps is *much* higher than for any pocket device. So although it's not particularly proper (non-conductive tubing with some retractable wires would be better - but oh-so-much more expensive to manufacture), it's part of the design, and nothing to worry about.
i had noticed it, but i didnt know what it was
DaWolfey said:
I recently bought an official o2 mains charger for my exec. It works exactly as expected, except for one thing!
It's giving me an electric shock! A very mild one, but it's there. The metal part on the top of the exec is getting electrified when charging with the mains charger.
Does anyone else with the mains charger experience this? I only noticed it when I rubbed my finger across it, it felt more "textured" than usual.
Click to expand...
Click to collapse
Yes, it is true. There is a mild current along the top of the Jasjar.
wow... your first post... I'm honoured
No problem on my unit (Charmer). However, I've experienced this with other devices, an IBM Notebook (X series, bought 2003). It has a rubbery top (not metal), which give you a tickling feeling when you rub it with your sensitive skin (e.g. the skin under of your arm - wrist to elbow, the part where you do not get enough of sun light). I guess it is of a tolerance limit. I mean, if you try that on your VCD DVD player, I bet you will have the same problem too.
well that's certainly cleared that up.
Good to know it's not a faulty Exec.
I think its a "signature" of all HTC devices
I remember playing silly pranks on my xda2, where in i'd fake an incoming call when its plugged into the charger and hand it over to my friend (victim). The look on the face is worth a million! (i'm not sadistic as you're probably thinking right now, atleast not "as much"!)
the faceplate charge leak is really cool! I keep stroking it when i'm jobless. Its i guess a feature in many ways -
1. You dont have to hunt for the charging light indicator, just stroke the plate and you'd know if ur device is charging up
2. The phone call prank - priceless weapon!
3. An excellent window for passing time, stroking harmless current gives me a high! (oh yea, i'm kidding of course!)
All in all, i like the charge leak!
San
PS: Just got back from an extremely long and tiring business trip, hope my post has some relavence to the topic and makes sense in any remote manner
All of the devices which use a Switch mode power supply has it. It isn't a fault rather a design. This reason is that Switch Mode Powersupplies do not have a transformer which isolate the main 110/220 from the output.
You can also experience it if you have a computer with a metal casing (those white boxed computers)
There is however a method to minimize that shock effect. though it might not be possible with three pin adapters. Here we have two pinned adapters so just plugging it in the opposite direction make the shock go away.
ady said:
All of the devices which use a Switch mode power supply has it. It isn't a fault rather a design. This reason is that Switch Mode Powersupplies do not have a transformer which isolate the main 110/220 from the output.
You can also experience it if you have a computer with a metal casing (those white boxed computers)
There is however a method to minimize that shock effect. though it might not be possible with three pin adapters. Here we have two pinned adapters so just plugging it in the opposite direction make the shock go away.
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lol.. I thought since you are writing in bold, it should be something.. good. Anyway, the only thing that I've notice that is right on your post is that, SMPower adapter does not have a transformer.
The isolation of the transformer doesn't stop the device from giving you a shock.
What do you mean by 'white boxed computers'? You mean those normal desktop, huh? I'm not sure about what's going on at your side, but we use 3 pin plugs here, and the 3rd pin is a ground line, which is the effective way of getting rid of electric shocks (e.g. it absorb the 'wild' current to ground, instead to you)
And the most funny thing is your last comment. You can make the shock away by flipping your two pin plug? What is the logic to that? There is a diode-like device in the adapter that will convert the current/voltage of your AC to DC. It doesn't matter how you connect your adapter, it will end up the same somewhere in the adapter way before it touches your device.
Anyway, surprisingly, for someone who doesn't seems to know electricity, you know what Switch Mode Power Supplies
ady said:
... so just plugging it in the opposite direction make the shock go away...
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Rigghhhhtt... That makes a lot of sense (not) :roll:
mdaexecfan said:
ady said:
... so just plugging it in the opposite direction make the shock go away...
Click to expand...
Click to collapse
Rigghhhhtt... That makes a lot of sense (not) :roll:
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Come on, maybe he meant the other other way, you know, with the pins pointing into the room rather than into the socket?
I bet that would stop the current leak!
I have no idea about anything electrical... but don't be too hard on ady. He was the one who decrypted bootloader 1.0 for the universal which is very useful to some of us... so he's acutally very smart! At least, he is at programming/hacking.
I have a very low to the ground car with low-profile tires.
I had my phone in my lap, and forgot it was there, got up and it just barely flopped to the ground. Flipped it over, the entire screen was shattered. It dropped maybe 12 inches from my pants to the ground.
Just a quick heads up for those who wear their phone in their crotch while they drive.
It will break from one time forgetting to take it out of your lap and into your pocket before you get out of the car. Take it from me.... FML..
Damn, that sucks bro! =[
I must be a lucky guy because I left my phone on my lap while I was driving my dad's truck (2002 Toyota Tundra), and then I forgot it was on my lap when I exited the vehicle. It landed face down, and not a scratch.
Another instance is when I was working out at the gym....again, I left my phone on my lap, and after completing my sets, I quickly stood up, and my phone hit the metal part of the equipment, and the battery door came off, and the battery flew out. Again, no scratch.
WOW!!!
I didn't know a glass screen could shatter!!!
Good info to know.
http://www.otterbox.com/htc-cases/h...cases-u.s./htc-hd2-defender-series-case-u.s./
had the same problem, dropped from a low height, screen cracked, my problem is I have a Telsta model, you have to replace screen and display (soldered together can't buy individualy) sad
eddyhsline said:
had the same problem, dropped from a low height, screen cracked, my problem is I have a Telsta model, you have to replace screen and display (soldered together can't buy individualy) sad
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most people break the screen when trying to replace it anyways. Probably better to replace both parts together.
It's all relative.
I've dropped my HD2 several times from various heights and so far the phone doesn't have a scratch on it. Once it skid down a couple of concrete stairs but miraculously survived without any damage. I guess I'm just lucky?
i use otterbox defender. in a moving car about 40km/h with window open and holding it outside when suddenly i lost grip and it felt on the asphalt.
the first thing in my mind is about the screen.
no scratch.
Was the phone on vibrate?
Just joking. Thanks for the heads up
Hey thanks guys on that otterbox thing. I might have to try that if they do have such an easy propensity to breaking.
Crazy how mine shattered so easy, and some not so easy.
If its any consolation this happened to a friend of mine - i guess its just bad luck.
people who mess with their phone whilst in charge of a vehicle deserve to crash and suffer terrible injury and / or a slow painful death, so im glad you broke your phone, just a shame you didnt cripple yourself into teh bargain. Whether making a call, or just holding it, you aren't in control of the vehicle, and deserve bad things to happen to you.
Just the opinion of someone who lost a relative to a driver who was 'just checking the time on my phone, officer'.
Glass screen can shatter? WHO WOULDA THUNK IT!?
In other related news, fish do live in the ocean and the sky is definitely blue.
I went through many of those drops with my Diamond. I put it on my crotch while talking on the headset, then got out of the car, unbeknownst that the phone is still on my crotch and BAMM! ate cement... Good thing the Diamond's screen was resistive heh. I take care of the HD2 like a baby now and always have it either on the passenger seat when i drive or put it in the phone holder.
badai said:
i use otterbox defender. in a moving car about 40km/h with window open and holding it outside when suddenly i lost grip and it felt on the asphalt.
the first thing in my mind is about the screen.
no scratch.
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WHY???
+1 on what sam said too.......
samsamuel said:
people who mess with their phone whilst in charge of a vehicle deserve to crash and suffer terrible injury and / or a slow painful death, so im glad you broke your phone, just a shame you didnt cripple yourself into teh bargain. Whether making a call, or just holding it, you aren't in control of the vehicle, and deserve bad things to happen to you.
Just the opinion of someone who lost a relative to a driver who was 'just checking the time on my phone, officer'.
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For your opinionated and assumptive information, I wasn't driving and talking on the phone, nor was I texting either. I pulled a pack of GUM out of my pocket and the phone had to come out in the process, so before you go wishing I DIAF, maybe you shouldn't assume things that never happen when I drive. Sorry you lost a relative, but I'm not retarded.
yep, hand off the wheel rooting in a pocket, that would count as driving without due care and attention too, except of course it's unenforecable, cos drivers have a whole set of laws all to themselves. I swing an iron bar around and accidentally hit someone and kill them, its manslaughter, a driver picks his nose and slams a half ton of metal into someone and its an unfortunate accident.
Im sorry i unloaded on you specifically, it was aimed at all car drivers (especially the pillock with his phone in hand hanging out of the car, christ, moron).
Even the (comparitively speaking) safe drivers look around, eat food (and gum!), pick their nose, fiddle with the radio, , none of these activities are safe.
How long to take your phone out of your pocket, take the gum out, unwrap it, put it in your mouth? 30 seconds? 30 seconds where you aren't in control of your car, it takes what, 3 seconds to mount the pavement, your car judders, your beloved phone leaps out of your lap, you automatically jump to grab it (studies have already shown people automatically try to grab their phones to protect them during incidents), bang, small child being scraped along the concrete leaving skin and blood in a trail behind your car. What happens? A year or so jail at the most, probably suspended.
So, again, im sorry i leaped down your throat, but for me, ANY story where something bad happens to a driver is good news.
samsamuel said:
yep, hand off the wheel rooting in a pocket, that would count as driving without due care and attention too, except of course it's unenforecable, cos drivers have a whole set of laws all to themselves. I swing an iron bar around and accidentally hit someone and kill them, its manslaughter, a driver picks his nose and slams a half ton of metal into someone and its an unfortunate accident.
Im sorry i unloaded on you specifically, it was aimed at all car drivers (especially the pillock with his phone in hand hanging out of the car, christ, moron).
Even the (comparitively speaking) safe drivers look around, eat food (and gum!), pick their nose, fiddle with the radio, , none of these activities are safe.
How long to take your phone out of your pocket, take the gum out, unwrap it, put it in your mouth? 30 seconds? 30 seconds where you aren't in control of your car, it takes what, 3 seconds to mount the pavement, your car judders, your beloved phone leaps out of your lap, you automatically jump to grab it (studies have already shown people automatically try to grab their phones to protect them during incidents), bang, small child being scraped along the concrete leaving skin and blood in a trail behind your car. What happens? A year or so jail at the most, probably suspended.
So, again, im sorry i leaped down your throat, but for me, ANY story where something bad happens to a driver is good news.
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I've been an insured driver for a decade. Never had an accident. NOR even a speeding ticket to speak of. Without taking my eyes off the road, its easy to drive with one hand and take a piece of gum out of your pocket. I don't LOOK off of the ROAD when doing this. Unfortunately some drivers do, and while one deems "safe driving" one thing, obviously another can deem it unsafe by their standards. Simply put, there are a LOT of bad drivers out there. You see them every day talking on their cell phone and using MAYBE 20% of their attention on actually PAYING ATTENTION to driving, so I get your point... but I'm sorry, taking ONE hand off the wheel while still watching the road is not unsafe, and if you cannot change the station in your car, or do simple things without getting into an accident then your license should be revoked. People take it to the extreme. I used to live in Phoenix and in the morning rush hour traffic you'd see women putting on their makeup and curling their FRIGGIN hair in the car. It boggles your mind how someone could deem THAT safe driving, because you should be BANNED from driving if you were to get pulled over or KILL someone for some stupid time-saving choice. If you've gotta do that in the car you might wanna hire someone to drive you to work every day.
So like I said I see what you're getting at and obviously, its a sensitive subject for you but I mean, 10 and 2 not 100% of the time in the car isn't gonna be unsafe if you're still prioritizing your attention & what you can, and cannot take a hand off the wheel for. ONE huge stupid is definitely TEXT/CALLING people. And the aforementioned.
So people, while this isn't a debate thread about texting and driving, moral of the story is.. don't be stupid and use your phone while you drive. I'm just the unlucky bastid that happened to have his in his lap when it shattered to the cement.
samsamuel said:
yep, hand off the wheel rooting in a pocket, that would count as driving without due care and attention too, except of course it's unenforecable, cos drivers have a whole set of laws all to themselves. I swing an iron bar around and accidentally hit someone and kill them, its manslaughter, a driver picks his nose and slams a half ton of metal into someone and its an unfortunate accident.
Im sorry i unloaded on you specifically, it was aimed at all car drivers (especially the pillock with his phone in hand hanging out of the car, christ, moron).
Even the (comparitively speaking) safe drivers look around, eat food (and gum!), pick their nose, fiddle with the radio, , none of these activities are safe.
How long to take your phone out of your pocket, take the gum out, unwrap it, put it in your mouth? 30 seconds? 30 seconds where you aren't in control of your car, it takes what, 3 seconds to mount the pavement, your car judders, your beloved phone leaps out of your lap, you automatically jump to grab it (studies have already shown people automatically try to grab their phones to protect them during incidents), bang, small child being scraped along the concrete leaving skin and blood in a trail behind your car. What happens? A year or so jail at the most, probably suspended.
So, again, im sorry i leaped down your throat, but for me, ANY story where something bad happens to a driver is good news.
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Texas has a new "distracted driver" laws in effect. Basically, they can cite you for doing anything that isn't driving. I'm going to have to look it up.
guess it wasn't as far reaching as I thought:
http://www.hg.org/article.asp?id=18043
nrfitchett4 said:
Texas has a new "distracted driver" laws in effect. Basically, they can cite you for doing anything that isn't driving. I'm going to have to look it up.
guess it wasn't as far reaching as I thought:
http://www.hg.org/article.asp?id=18043
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Yeah, I live in Michigan, and we just started to pass laws. Lots of states have. We just got a "no texting" law. If an Officer sees you on your cell while driving you will absolutely get a ticket every time. I actually think this is a GREAT idea. Maybe we'll save some lives and when a person thinks to get on their phone while driving they'll think twice.
This is my first post and after weeks of enjoying especially the development forum and now, admittedly suffering from OCFD, I felt it was time to contribute aswell. If not in a more unconventional way.
With the pressure of my girl's first pregnancy coming to an end soon I've been forced to divide my time between flashing great and exciting ROM's and renovating my house. Yesterday whilst painting my walls I was also on call, so my trusted divice was in my pocket.
Then the unthinkable happened...
My almighty Galaxy S somehow managed it's speedy ass out of my pocket and fell into a full bucket of thick, latex paint...
So, here it is;
"How to salvage your device after dropping it an a bucket of Latex wall paint":
- don't hesitate (even if you dropped it in your freshly filled toilet bowl): PULL IT OUT !!!!
- wipe of worst paint with everything that comes in handy (new baby clothes will do nicely)
- PULL THE BATTERY AND SIMCARD
- Now comes the worst bit; the paint being waterbased means; best cleant in water; flush of paint with running WATER.....
- The horror bits are obviously the micro usb port, the speakers, camera...
- Dry with Airdryer if in posession of wife/girlfriend/mother/sister, if not: use heater instead.
- soak the device in WD-40 spray or contact spray, force spraying into the speakers and mic/USB-ports
- Let dry...
- Start praying......
At this moment it's worth noting that I've been poised with indecision in the Vodafone shop between the Desire, iPhone and the Almighty Galaxy S where, apart from the ridiculous TW/Samsung crap, the apparant poor built quality left me doubting...
I thought the nokia 3310 (Yes, I'm that old) and the 6610 (the Great) were the best built phones ever, surviving multiple drops in toilets, submerging during sailing, several liters of beer accidentally spilling on it....Behold the Almighty:
Shaking and trembling, this morning, I continued on my seemingly impossible quest:
- insert SIM card
- insert battery
- Power up the device (all the time, the praying continues)
And there it was.... The beautiful S... And in merely seconds my JPA/doc/Kalpic 7.6.2 ROM unleashed the full beauty again of this great..great device...
As Julie Andrews once sang:
"The hills are alive, with the sound of Music"
grtz
il Grande
What was the color? Me thinks you could have just removed the paint from the screen and ports, and leave the rest, for a certainly unique Galaxy S.
Greate story! Good to hear that my phone can survive such an accident, but I hope it won't happen to me
What an inspiring story. It moves me to see how people with disabilities always find a way to cope with their imperfections.
Now all you need to find is a way to get your phone back when you lose it somewhere.. again, and again.
By the way the n95 you soaked in tea did not survive.
Ketelbinie971 said:
What an inspiring story. It moves me to see how people with disabilities always find a way to cope with their imperfections.
Now all you need to find is a way to get your phone back when you lose it somewhere.. again, and again.
By the way the n95 you soaked in tea did not survive.
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Hello Ketelbin"K"ie
1. I only mentioned the solid Nokia's
2. ..and still... even after I soaked it in Latex, it outrules your amish HTC Desire
Shouldn't you be working?
Even though its working again, the innards will be rusting away at an accelerated rate due to all the hydrophilic electrolyte salts dried up on your circuitry. So cross your fingers and hope it lasts until your next phone,
My wife dropped a Samsung Omnia 2 in the toilet last week, and was able to revive it by removing the battery immediately and with an air dryer and a lot of praying
Something odd I noticed a week or so ago. When my tab is charging, if I run my finger lightly along any part of the metal case, there's a REALLY faint "vibration" or "tingle", reminiscent of the feeling you get when you put one of those 9V square batteries on your tongue.
If I disconnect the charger then it stops, so I figured there must be some kind of short in the tablet somewhere.
But I finally found my multimeter this morning and tested it. There is absolutely no current in the casing at all. 0.000 volts. 0.0000 amps. Nada. Zip.
So what the hell IS it? I don't think it's the internal vibrator as I can't hear anything. Is anyone else getting this? It's strongest around the middle of the device, around where the Acer logo is on the back, but can only be felt on the metal parts, not the glass...
It might be an electro magnetic induction current, and the plastic is insulating the metal from earth - you are then providing the earth to make the circuit.
Where did you measure from and to with the multimeter? Try case to earth on another power socket, or case to earth with your tongue (wet, very conductive) (wet fingers if you's scared.. LOL).
I tried all the ways I can think of, including those, but there's nothing I can pick up with my meter. Alas, my scope is broke.
My wife can't feel it at all, but my kids can so I'm positive I'm not imagining it. It's not there when unplugged from the charger, there when plugged in.
BTW, generally, water is a very poor conductor of electricity, especially through the tongue as saliva has a pH of 7.5, which will insulate rather than conduct. You need water with a pH of <5 or >9 for decent conductivity.
Don't worry, I can feel the same vibration with my HTC Desire (which has a metal case, too), funny enough not with my A500, though. Not everyone can feel it, which either means not every device has that effect or not everybody can feel it.
True, but it's still better than dry skin, especially finger print tipped fingers.
Fluffbutt said:
True, but it's still better than dry skin, especially finger print tipped fingers.
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Nope. With wet fingers (saliva or tap water) I can't feel the vibration at all, with dry I can. This tells me it MUST be electrical, but I'm damned if I can get it to register on my meter.
BTW, though I've not done much in the last 20 years, I originally trained as a microelectronics engineer, so I do know what I'm doing. I've never seen this in a device that DIDN'T register some kind of current flowing through it...
I've always been pretty sensitive to tiny electrical currents, so it probably IS some kind of short that my fingers are picking up, but can't get through the anodised coating on the metal back for my meter to read it. I AM getting a tiny reading of 0.003722 volts on the bare metal in the dock port, but my fingers sure shouldn't be able to pick THAT up!
Still, with no readable value on a meter, there's no way I'll be able to return it as the store just won't believe me, so I guess I'll live with it and just check it periodically.
I have exact the same thing, when the A500 is charging and I'm touching the case, it is vibrating a little.
I got my A500 since friday. I registered same vibration during the first charging. I don´t know what to do with it....
E.
Yeah I noticed this too. The list of quirks with this tablet just seems to grow by the day
i have the same issue before, i changed the power adapter from Acer and the problem solve. Their report log show 'electrical leaking'
I truly don't doubt what you say.
I honestly would've though that wet skin would be better than dry or skin-oil skin. Weird.
See if you can get a infinite resistance reading between the metal shell part and the dock port (like you should). I also suggest a separate test of the charger unit for leakages.
Maybe also test the charger port and the dock port for max resistance, charger port and skin as well.
OK, it's probably not dangerous (well, maybe not now..), but it IS bloody interesting!!
FloatingFatMan said:
Nope. With wet fingers (saliva or tap water) I can't feel the vibration at all, with dry I can. This tells me it MUST be electrical, but I'm damned if I can get it to register on my meter.
BTW, though I've not done much in the last 20 years, I originally trained as a microelectronics engineer, so I do know what I'm doing. I've never seen this in a device that DIDN'T register some kind of current flowing through it...
I've always been pretty sensitive to tiny electrical currents, so it probably IS some kind of short that my fingers are picking up, but can't get through the anodised coating on the metal back for my meter to read it. I AM getting a tiny reading of 0.003722 volts on the bare metal in the dock port, but my fingers sure shouldn't be able to pick THAT up!
Still, with no readable value on a meter, there's no way I'll be able to return it as the store just won't believe me, so I guess I'll live with it and just check it periodically.
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Fluffbutt said:
OK, it's probably not dangerous (well, maybe not now..), but it IS bloody interesting!!
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I really doubt it's dangerous, but it does indeed sound like there's leakage current on OPs tab. I've had similar experiences with e.g. some PC cases and there the problem was easily solved by making sure the case is well-grounded. Also had a washing machine that did the same, but as there's water involved I had to check it out properly and it was indeed a defect unit and had to be thrown out.
I get the same, both on the case, and when i run my finger over the glass, makes it tingle slightly, unplug the charger and wherever i touch its gone. perhaps from the screen getting the full V/amps from the charger?
I'm glad not to be the only one experiencing this so called "electrical leaking".
But it seems I am the only one who actually enjoys this feeling on my fingertip. Don't you?
pintness said:
I'm glad not to be the only one experiencing this so called "electrical leaking".
But it seems I am the only one who actually enjoys this feeling on my fingertip. Don't you?
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!!!!!!!
If you try another part of your anatomy on the screen, DON'T post the video!!
LOL!!
;->
I get the same vibration but on the bottom edge of my a500 .....strange.....
Sent from my XT720 using XDA App
lol
My advice would be to *not* lick / taste your a500 while it is charging
me too
The cases is hot with respecs to earth. The adapter needs replaced.
Mine dont do that.
Sent from my A500 using XDA Premium App
I noticed this too when I first got my A500. I don't notice it anymore because I always have it in the Folio Case.
Anyone thought about raising the ouya with a fanned base mount of some kind, and creating some vents in the top to make the case a little wind tunnel. I mean it's great the processor has a heat sink and fan, but all that heat still needs an escape. anyone already working on something like this, or have thoughts on it?
Sent from my HTC One using xda premium
bwild said:
Anyone thought about raising the ouya with a fanned base mount of some kind, and creating some vents in the top to make the case a little wind tunnel. I mean it's great the processor has a heat sink and fan, but all that heat still needs an escape. anyone already working on something like this, or have thoughts on it?
Sent from my HTC One using xda premium
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Hey bwild... I just received my Ouya a few days ago and this was one of the many initial issues which i've noticed, especially when you launch a game and leave it sitting at the title screen for about 15 minutes. It heats up pretty well and if the ambient temp is 25c or higher then the little thing struggles to cool itself.
After opening mine up, i can see several points which cause me concern heat wise, and obviously the long term issues are potentially reducing the lifespan of the device as a whole.
1. Due to the size of the device internally, and the amount of air that the small fan can shift per minute and the lack of escape points for heat, the device warms up pretty quick as essentially the small cooler is just reusing warm air internally to try and cool the heatsink. There is no heat shielding on the inside of the case to isolate the board from the surrounding case so the entire device heats up but the only effective cooling part is the small heatsink. Its a REALLY bad design.
2. The mobo inside is mounted on its side, this forces the fan and heatsink to fire out warm air towards the vents at the top and the bottom of the case, well at least im sure they are 'Vents' . Im quite sure that this kind of heat build up and pressure makes it almost impossible to draw any kind of reasonably cooler air from the outside, inside. Any air being drawn in is already warm before it even hits the cooler. My Ouya does get noticeably warmer underneath the device but i also believe that this is due to the 4 small metal weights which sit right at the bottom of the case heating up as warm air is expelled downward from the heatsink... I'm thinking of removing these as they are acting as a small heater with cool air trying to enter the underside of the case. But i can test and let you know if theres any difference.
3. The unique shape of the Ouya doesnt help either i believe... Warm air being expelled downwards towards the bottom of the case, will naturally try and rise and move up the curved side of the case internally and then get drawn in by the cooler again, im no expert when it comes to these types of things but im pretty sure thats whats happening.
4. I've replaced the standard 40mm fan with an Akasa 40mm fan with slightly higher airflow rating (and a little more noise), Not sure if this again helps much due to the design but it should help to at least cool the device a little quicker once your return to the Ouya dashboard.
5. Something else that i noticed was that the heatsink is actually spread across what looks like the GPU and (What looks like) Memory Modules, i cant confirm this as it was a side on look and havent removed the heatsink (Yet). Again i noticed that the GPU sits on one half of the heatsink (the side which is closed to the bottom of the case actually) so im wandering if this heatsink is doing anything at all I'll see about removing this at some point and probably putting a highly polished copper shim on it with some better heat compound, silver or ceramic and see if this helps.
6. The underside of the motherboard, has no cooling or anything on there despite a memory module being present on the back but i dont think that this will cause any issues.
So will all of that in mind... i've set of to find a suitable cooler of some kind that wont require ear plugs or make the device levitate 2 inches from the surface its supposed to be sitting on.... Space is a real killer inside this so i think we are going to be limited to what can can do however i'll need to see if theres any way that i can change the airflow in the device to allow for cool air being drawn from underneath and the warm air being expelled from the top. Sounds simple but i dont think its going to be anything easy... Just by looking at the Ouya, i had the crazy idea of trying to mount a 80mm fan (Low Profile if such a thing exists) which has a low rpm which sits between the top of the case and the top lid where the power button is. There may be much pressure between the fan and top lid though so there would need to be some mods and see if i can get enough power.....
All of this sounds extreme for what it is but i hate warm devices
I came across this : http://www.ninjalane.com/reviews/motherboards/rampage3extreme/page4.aspx : which shows a small chipset cooler. This would allow you to mount is side ways with the fan obviously pointing towards the top of the case and flip the fan over so its draws air from underneath and out through the top. Its either something like that, or we start a watercooling ouya project LOL :highfive:
Well thats my 2c
I think the outside only gets warm because it metal if it were plastic no one would know.
Sent from my Nexus 7 using xda app-developers app
Ok.... Quick test there after work.
Removed the lid, played Shadowgun for about 30 minutes. Fan kicked in a couple of times, but when the fan kicked in for a 3rd time, I exited back to the dashboard and the fan stopped immediately.
Console was slightly cold to touch and the heatsink was roughly a little warmer to the touch so I'd say between 40 and 45c at the most. :thumbup:
Compared to last nights epic slaughter session on Shadow gun, the fan remained on for approximately 10 minutes with no system usage, just sitting at the dashboard as it tried to desperately cool itself.
Sent from my Nexus 4 using xda app-developers app
It's running a mobile cpu... won't it just throttle itself if it actually gets up to a dangerous temperature??
Sent from my Nexus 4 using Tapatalk 2
I agree mate yes... however i'm not sure if it does actually throttle itself? On an enclosed mobile i can see why thats required, on an open, air cooled device (albeit poorly) there wouldnt really be a requirement for throttling, unless they know it couldnt cool itself properly there any way we know for sure?
That aside though, the device will still take some time to cool down even when throttled as it will still generate heat
Personally if i am playing a game at 1080p, i'd rather not have to suffer from reduced quality when the device throttles due to poor design!
I did notice as well initially when i had a really good session on Shadowgun, that the frame rate on a 1080 monitor was dropping below 30fps and the textures didnt quite look as crisp, so maybe it does throttle. If thats the case, i'll play it with the lid off until i can stop it from overheating and lowering the core frequencies :good: I'll make this a little project and see how cold i can get it to run.
If i make any changes that i think are working, i'll post a few pics :highfive:
Im going to picking up a mini-itx case so i can not only rectify the cooling issue when running my roms , but also to permanantly install a usb hub and hard drive internally. I am growing accustomed to using this for media too, so a hard drive is a must. I will post some pictures and video as I move along with it.
Ramzes13 said:
Im going to picking up a mini-itx case so i can not only rectify the cooling issue when running my roms , but also to permanantly install a usb hub and hard drive internally. I am growing accustomed to using this for media too, so a hard drive is a must. I will post some pictures and video as I move along with it.
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played through shadow gun and the left over and the system stayed cool to the touch the fan did come on a few times
I stripped mine down again tonight and had a closer look at the PCB. Looks like the heatsink, which is soldered on, isnt flush. It rises slightly at the end where the CPU/GPU is so that's maybe why mines is a little warm. I can apply a little pressure to the high end and it does drop 1 maybe 2mm. So maybe my heatsink isn't as effective as it should be.
Sent from my Nexus 4 using xda app-developers app
Here is the simple rigging I came up with.
A 60mm case fan with some allen bolts for legs. Plugged into the ouya usb (I still need to split it so I don't loose a slot.)
The fan blows up through the bottom vents, I do intend to cut a couple extra slits in the top too.
Sent from my HTC One using xda premium
Thingiverse has the plans for the ouya and others have likely moded it for better air flow if you have a 3D printer.
Sent from my DROID4 using xda app-developers app
The Old One said:
Thingiverse has the plans for the ouya and others have likely moded it for better air flow if you have a 3D printer.
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This is what I'd ultimately want to do I have a design in my head for incorporating the fan inside the bottom of the case raising the board by the equivalent height and adding in just a spacer with additional venting, between the case and top cover.
Sent from my HTC One using xda premium
bwild said:
Here is the simple rigging I came up with.
A 60mm case fan with some allen bolts for legs. Plugged into the ouya usb (I still need to split it so I don't loose a slot.)
The fan blows up through the bottom vents, I do intend to cut a couple extra slits in the top too.
Sent from my HTC One using xda premium
Click to expand...
Click to collapse
That's awesome mate!! :good: Do you get a noticeable difference with that fan?
it is noticeably cooler to the touch. I'll try to measure it somehow and update when I get a chance.
Sent from my HTC One using xda premium
So I picked up a dead sega dream cast at the flea market, got it home, gutted it, cleaned, and got most of it done. I was able to convert the sega push button power switch to a momentary and soldered the leads to the ouya main board. I hot glued the connection afterwords so it will stay (the power pins are tiny). I added two USB ports to the front and rear using a USB hub. I also mounted an hdmi coupler and m type power connector on the rear. I made a jumper cable to hook up power internally. I'm also looking into wiring up the stock dream cast cooling fan to use as side exhaust. I will update when i get the cooling sorted out. The point of doing this was to increase airflow in the case and make a more compact package for all of devices.
Ramzes13 said:
So I picked up a dead sega dream cast at the flea market, got it home, gutted it, cleaned, and got most of it done. I was able to convert the sega push button power switch to a momentary and soldered the leads to the ouya main board. I hot glued the connection afterwords so it will stay (the power pins are tiny). I added two USB ports to the front and rear using a USB hub. I also mounted an hdmi coupler and m type power connector on the rear. I made a jumper cable to hook up power internally. I'm also looking into wiring up the stock dream cast cooling fan to use as side exhaust. I will update when i get the cooling sorted out. The point of doing this was to increase airflow in the case and make a more compact package for all of devices.
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Pretty cool, I considered doing this as well with a dreamcast, but won't have a chance till I buy another OUYA specifically to mod. Looking at it, I have 2 concerns. Your USB hub is almost wasted, isn't it? I mean the majority of USB ports are inside the case, or am I missing something? What about heat? With the OUYA in the middle, close to the top, wont it cause more heat? or do you think the second fan will fix that?
Have you thought about anything to do with the lid/cd area?
JLCollier2005 said:
Pretty cool, I considered doing this as well with a dreamcast, but won't have a chance till I buy another OUYA specifically to mod. Looking at it, I have 2 concerns. Your USB hub is almost wasted, isn't it? I mean the majority of USB ports are inside the case, or am I missing something? What about heat? With the OUYA in the middle, close to the top, wont it cause more heat? or do you think the second fan will fix that?
Have you thought about anything to do with the lid/cd area?
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Click to collapse
I wanted the majority of the USB ports internal for use with the front USB ports and to add internal storage. You are correct about the pcb location and I'm going to make small vents above the fan inside the cd area for air intake. As it sits now heat isn't in issue yet. I mounted the pcb near the stock fan location so once I have that working it can pull air out more efficiently. Using a dream cast was great, I wish I did this in my spare Nintendo 64, but I didn't have the security tool yet (ordered last night). The n64 cartridge slot makes an amazing air intake, I will more than likely do it when I pick up another ouya ?.
So I got around to wiring up the stock dream cast fan to maximize air flow and moved the led from the pcb to the lid of the console so now the light can be seen.
The first picture is with the cd tray open to show the vents I had to create since the CPU fan sits below. In both pics you can see the light now works. I ordered right angle USB adapters last night and will update when they are installed.
...and so nothing falls into the system or the fan ...