My Gigabyte HD 7870 is haunted?

[buetforasif]

I have never faced this weird problem before!
During night, my GPU literally goes off. From then on, there is no display, no spinning of the fans - as if it's gone dead! But this doesn't cause my PC to crash, rest of the components in my CPU goes on running. When I re-run the PC, the fans on the GPU spin for fraction of a second, then turns off, but the rest of the CPU components boots up just fine.
I tried with (i) checking up on both 6-pin connectors, (ii) fitting in other PCIe slots; no avail.

During daytime, when I boot my PC, the card works just fine as if nothing happened last night!
This has been happening for the last 3 days. The card turns off even when I am watching movie or browsing Internet. No recent gaming activity. Can't complain about the temperature.


My configuration:
Mobo: Gigabyte Z77-G1-Sniper M3
graphics card: Gigabyte Radeon HD 7870 GHz Edition
PSU: Gigabyte ODIN Pro 800W

 

[ingtar33]

not a fan of the psu. your gpu is acting like there is a short somewhere in your 12V devices. I had a similar problem with a bad molex plug for one of my case fans which was causing a small short on my corsaid h100. the h100 would work just fine 90% of the time, but it wouldn't wake out of sleep. more troubling the gpu wouldn't wake out of sleep either (the rest of the pc did wake though).

It would take a reset for me to get my gpu back and me patting the case for the h100 to come back. took me days to find the problem. a bad molex fan connector was creating a small short on my 12v devices. fixed that problem the gpu and h100 worked flawlessly.

 

[Jaxem]

Simple, your card is afraid of the dark, just keep the lights on and you'll be okay...but seriously, the first thing i would try if you have stuff to try with is another PSU (or transplanting it into someone else's PC and leaving it for a day or two), is this thing still under warranty?

 

[buetforasif]

Simple, your card is afraid of the dark, just keep the lights on and you'll be okay...but seriously, the first thing i would try if you have stuff to try with is another PSU (or transplanting it into someone else's PC and leaving it for a day or two), is this thing still under warranty?

Yes, under warranty. 3 months left on both.

 

[Jaxem]

it puzzles me that the fans don't even spin, the card should get enough just through the pcie slot to spin the fans. There well may be a short, it's just up to you to figure if it's easier to swap some parts to isolate it to a single part, or to try to track it as it is playing with all the connections. Track it down and RMA it if it's not an easy fix. Good luck my friend

 

[buetforasif]

I reset the CMOS and this problem hasn't been happening in the last few weeks. I don't know the explanation behind this, but this seemed to work so far.