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PC wouldn't turn on, 'Unplugged' GPU, Smoked it

This is a discussion on PC wouldn't turn on, 'Unplugged' GPU, Smoked it within the RAM and Power Supply Support forums, part of the Tech Support Forum category. Build PSU: E EVGA SuperNOVA 750 G2, 80+ GOLD 750W GPU: MSI NVIDIA GeForce GTX 1070 8GB Gaming X Motherboard:


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Old 06-24-2019, 03:22 AM   #1
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Confused

Build

PSU: E EVGA SuperNOVA 750 G2, 80+ GOLD 750W
GPU: MSI NVIDIA GeForce GTX 1070 8GB Gaming X
Motherboard: ASUS LGA 1151 PRIME Z270-A
CPU: Intel Core I7-6700K

Hi,

Storytime

I was out of town for a few days and came back to a PC that wouldn’t turn on. The PWR_LED was on but pressing the power button would cause a click by the PSU and then nothing. I tested multiple adapter cables and no dice.

I then ‘unplugged’ the GPU from the PSU. Turning the PC on caused everything to turn on as usual but then there was smoke and a burning smell coming out of the GPU on the side without IO. One of the 8 pin leads for the PSU is split and I don’t think I unplugged it before turning the PC back on.

I fully removed the GPU and plugged an HDMI into the onboard slot on the motherboard and have no display.

The PSU, motherboard and CPU were all purchased on Amazon (UK). The GPU was purchased from Novatech (UK). All were purchased just under 3 years ago.

Questions

1) What is the culprit?

2) Can having only some of the pins in the GPU cause it to fry?

3) What is the likelihood of damage to components other than the GPU/PSU (e.g. hard drives and SSDs)?

4) What are my options with getting parts replaced and by who?

5) Where do I go from here?

Please let me know if there’s any more info you need.
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Old 06-25-2019, 06:57 AM   #2
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Quote:
1) What is the culprit?
Cannot tell at this point.

Quote:
2) Can having only some of the pins in the GPU cause it to fry?
Assuming what is connected is connected to the proper contacts, no. It would not cause it to fry. But if the wrong connector/voltage comes into contact with the wrong pin, it might.

Quote:
3) What is the likelihood of damage to components other than the GPU/PSU (e.g. hard drives and SSDs)?
Slim, but possible. And frankly, I would be more concerned about the motherboard and RAM than drives.

Quote:
4) What are my options with getting parts replaced and by who?
A repair shop, you, a trusted friend.

Quote:
5) Where do I go from here?
If you don't have a current backup of your data, you need to pull your drives and connect them to or attach them to another computer and make copies.

Then, if me, I would swap in another known good power supply and with the integrated graphics, see if the computer boots.
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Old 06-25-2019, 07:38 AM   #3
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As Bill suggests at this point you need to test components individually to find all the damage so unless you have motherboards and video cards laying around, you really do need to seek some help as all we can do here is guess but also as he suggests the very first thing I would do is make sure files and data are backed up by attaching to another pc. If the video card burned I would expect the motherboard is also shot and usually that is as far as it would go, but every case is different.
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