Possible overheating accident... Did it damage my mobile GPU ?

wickedfritz

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Mar 12, 2014
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I recently bought a gaming laptop. The brand name is Avell, and they only assemble using third party hardware (It's actually one of the only providers that offer laptops with such custom configurations such as the one chose, here in Brazil). The brand is well known for good service and respectable manufacturing work. Nothing wrong there. My specs are as follows:

Intel i5-4200m 2.5 Ghz (3.2 when boosted) fourth-gen Haswell architecture, 8GB Corsair Vengeance D-RAM (2x4GB), GeForce 750M 2GB dedicated video memory GPU, 1TB Seagate S-ATA HDD. I have my HDD parted 3:1 running Windows 8 and Linux Ubuntu 12.04 on dual-boot.

Something happened recently, and it's entirely my fault. I was at college doing work while on the ubuntu, and I had my 4 desktops setup in a complicated manner, for C++ programming purposes. We had to leave for a couple of hours or so, and I didn't want to turn the laptop off, 'cause I'd lose my setup. The thing is, Ubuntu is not very optimized for system monitoring and response. So I closed the lid, and the put the laptop INSIDE MY BACKPACK, and put it in a locker. We were out for an hour and a half or so, and when I returned, I found my laptop turned off, intensely and abnormally hot on the GPU side of the equipment (it never heat up like that, even when gaming and or benchmarking). It's probably just my paranoia, but even the HDMI ouptut port seemed a little burnt, like blackened.

So I logged into Windows while plugged in, and noticed the battery wasn't entirely depleted, which means there was an emergency shutdown, most likely due to overheating.Tried to play some games. Was getting some off-the-charts lag spikes. I googled it and found out that 750M was a little known for driver problems. Reinstalled the driver update. Let's try again: success. Games all running smoothly on some pretty pushed settings (Dota 2, Mirror's Edge, Borderlands 2, all from high to maxed settings, more specifically. Full-HD res.). Ok, so no worries there, I GUESS.

It's probably just all in my head, but, could this accidental overheat have possibly damaged my GPU ? How so ? Did I actually cripple it's performance ? I do know my way around software and digital environments, but I'm no whiz when it comes to hardware, at least on mobile form... It's probably my paranoia kicking in, but I mean, I even feel like the laptop casket itself is a little deformed on the side edge. Someone, please, shine some light over the blackness of my ignorance.

Many Thanks in advance.
 

benftf

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Aug 4, 2011
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I work mostly with desktop hardware, but most things (in the most extreme circumstances) are mean to handle the higher side of 90c. Now, it shouldn't be ran extensively in this situation, but most things can handle it. As far as I'm aware, most laptops/desktops (now-a-days) have sensors that will trigger an emergency shutdown if temperatures get to a certain point, set by the manufacturer. This use to be done via software, but I remember reading a while back that most hardware is now implemented with this as part of firmware. In such a high quality laptop, I would expect the same. If it's working fine, then you may have dodged a bullet. If it wasn't running for a long period of time in your bag/locker under high heat you should be ok. However, to ease your paranoia, I would take it somewhere that can take a look at the hardware and look for signs of visible damage. I would also install a program(s) that will do some hardware monitoring and logging. In case of a crash, you have somewhere to look for reasons why.
 

wickedfritz

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Mar 12, 2014
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I understand... Well, I'm not sure what a long period of time would be considered, but there was probably well one and a half or maybe two hours under that heat, and locked up... As much as I'd like to believe you and that there was no damage, I will wait for some other response, perhaps from someone that has been through the very same/similar experience... The thing is, I can't visually evaluate the hardware, because if I violate the manufacturer seals, I lose the warranty on the product... But then again, it's probably all in my head...

Thank you for the quick reply! I appreciate the attention.
 

benftf

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Aug 4, 2011
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I admire you more for wanting a second opinion more than taking my advice and being on your way haha.

As for the voiding of warranties; This was my reasoning for taking it somewhere. People who have certs and are licensed to do this stuff contact the manufacturers support to let them know who's doing work on it. A work order is created, and your manufacturer can see work was authorized through a 3rd party, so your warranty won't be voided.