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Gpu fans start and stop in a second upon boot

Last response: in Graphics & Displays
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July 5, 2013 9:19:14 PM

Hi guys, new build specs:
Amd fx 8350 Black edition
Gigabyte fxa990 ud3 mobo
Gigabyte Hd Radeon 7870 gpu
Antec Kuhler 620 water cooler
Corsair 750 Tx PSU
WD Blue 1 tb hdd
G.Skill 2x 4gb Ddr3 RAM
DeepCool IceBlade x 4 Led fans
1LG Dvd combo drive
As soon as i switch on the power switch, i hear the hdd starting to spin, Fans start, water cooler starts, but gpu shuts off immediately. The fans on the gpu spin and stop instantly.
I have tried changing the monitor from vga to dvi, connectors... Tried all the connections, cables plugged unplugged... Tried to remove lithium battery clear Cmos. Tried with/ wo Ram... The gigabyte web page mentions psu req of 500 W on the gpu. Am i falling short on power or is my card faulty?? Please help as i am running short on time before exchange period expires. This mobo has 0 vga ports. Absolutely no display port on mobo, so without gpu it is useless
I have no display so i cant even update my bios.........

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July 5, 2013 9:25:05 PM

I hate to ask the obvious, but you did connect the PCIe power connectors to the video card right? also ensure that the motherboards 4/8 pin cpu connector is connected.

AMD ZERO core stops the fan if the video card is not running(turn off screen in windows power settings), but I am not sure if it works before post.

Please follow the link in my sig for NO BOOT and run down the guide real quick to see if it helps.
http://www.tomshardware.com/forum/261145-31-perform-ste...
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July 5, 2013 11:31:00 PM

Turns out there is a heating issue, i changed the thermal paste on the processor. Removed stock nd used coolermaster xtreme fusion X1 9 w/m-k. Now seems to b running fine at 42 degrees centigrate. The processor was heating and causing some sort of a shutdown. But due to improper earthing the fans were running!! I was saving my belkin spike protector for office
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July 6, 2013 6:34:16 AM

The cpu has a built in thermal cut off as do many boards. This will save them even in the worst case.

The fans spinning is pretty normal as far as I know.

Glad you got it going.

ALWAYS use a surge protector for your computers, they are an inexpensive(compared to the cost of a computer or power supply replacement) way to ensure higher reliability. While most power supplies have some surge protection on the mains side, you can not tell when it has stopped working(at least power bars have the protected led to show everything is still working).

Even better protection(power backup and surge protection) can be had with a UPS, but the cost goes up.
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July 7, 2013 3:17:28 AM

Thank you though for the information and links im sure it will help in future and others too. Cheers
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November 9, 2013 7:53:34 AM

I want to say thanks for this post, my computer is doing the same thing because there is barely any thermal paste on the cpu from where I swapped cases. The gpu fan spins up then stops after a second upon boot. So Ill put thermal paste on today and see what happens.
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