Hello and welcome!
I need your help mates... because I have no idea already...
First of all, here is my PC:
CPU: I5-2500K (non OC)
MB: AsRock P67 Pro 3
RAM: 2 x 4 GB Kingston HyperX Black
PSU: XFX TS 550 W
GPU: Gigabyte Radeon 7970 Windforce factory OC
At first, I bought used XFX TS 550W (used to power-up bitcoin miner: Antminer S1) with 4 years and 3 month warranty left.
Then I bought used Gigabyte Radeon 7970 Windforce (non OC version, stock AMD clocks) - and here problems started. First boot - OK, no problems, windows installed it's own driver. Then I rebooted the PC and got this:
http://www.mediafire.com/view/v58dcr...401_230948.jpghttp://www.mediafire.com/view/i5g0y6...401_230952.jpghttp://www.mediafire.com/view/yqtb2b...401_231002.jpgThese artifacts never shows, when PC is booting "from zero", but while rebooting the OS (and not at every time).
Second problem with this card: When I install driver (newest Omega), computer needs to be rebooted at the end of installation. Its normal, yeah. After reboot, everything is OK. But if I reboot the OS one more time, the resolution is the lowest as possible, and Windows is trying to install drivers for VGA.
This problem is fixed, when BIOS switch is in "2" position. At "1" there is again problem with drivers.
First idea: the card it's faulty, so I returned it to the seller, and got money back.
As I was 100% sure, that the card was faulty, I bought another 7970 form Gigabyte, but this time - factory overclocked (but not GHz edition).
And guess what happened...The same problems, the same artifacts, all the same. Even problems with drivers is the same.
Here is what I did already, to find out reason of my problem:
1. Checked voltages with voltage meter - all are OK.
2. Checked the card on another PC, but with mine PSU - no artifacts, but problem with drivers still persist.
3. Temperatures are OK.
4. BIOS of GPU and MB is newest. I already tried the BETA Bios for my motherboard, which is released especially for GPU issues, but problem still persists.
6. Tested my PC on other PSU - OCZ 550W, problem still occurs.
I don't have such problems with my old Gigabyte 7850 1 GB card...
Now, I don't know what should I do... Send the card to RMA, or maybe buy another motherboard?
Faulty is motherboard/BIOS or card itself.
I don't know.. Two cards in row, and exatcly the same problem?
What do you think? Please help me.
Greetings.
