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HD6950 + Black Screen

post #1 of 2
Thread Starter 
Hey, just upgraded to a HD 6950 from a HD4850, and having some problems with it giving me black screens. everytime I run a 3d game or even just use the PC for more than 5 minutes the screen goes black/blank and says "check input/power saving mode". after this happens, rebooting just doesn't solve the problem, sometimes it boots and the monitor recognises it, sometimes it takes 10-15 minutes. it's a strange problem and i've checked the card using other outputs, and always the same

Now, i'm unsure if this is a PSU problem or a card problem. i've also got the second 6-pin PCI-E connected through a molex adapter.

Under windows 7 it seems to be fine until you run 3d/benchmark, then it just goes blank, under XP 64 however, the card gives artefacts when using 1920x1080.

Is this a card problem or psu or something else? Any help would be greatly appreciated as it's such a pain to not be able to use my PC just before portal 2

Specs below:
PSU: thermaltake RX 550w
CPU : C2d e8500
GPU: sapphire HD 6950 2gb

thanks again ! and sorry for my bad formatting !
Edited by order-sol - 4/19/11 at 10:11am
Good ol' e8500
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CPUMotherboardGraphicsRAM
Core 2 Duo E8500 MSI P35-neo2fr Ati HD4850 512mb 6GB DDR2 (PC28400) 
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Windows 7 X86_64 Windows XP Pro X86_64 Belkin N52te + Logitech MK250 thermaltake RX 550w Antec Nine Hundred 
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Good ol' e8500
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E8500 MSI P35-neo2fr Ati HD4850 512mb 6GB DDR2 (PC28400) 
OSKeyboardPowerCase
Windows 7 X86_64 Windows XP Pro X86_64 Belkin N52te + Logitech MK250 thermaltake RX 550w Antec Nine Hundred 
MouseMouse Pad
Logitech G9 Ozone Gamer's 
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post #2 of 2
Try different power leads, and another power supply if possible. Other than that just RMA the card if your suspicious.
Stacker 810 V3 :)
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2x 64gb ADATA SSD RAID0 + 2x 4 TB spinners 2x Asus DVD+RW Swiftech Watercooling 360 rad mcp655 win 7 x64 Ubuntu x64 
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Stacker 810 V3 :)
(14 items)
 
  
CPUMotherboardGraphicsRAM
2600k 4.5 GHZ ASUS P8P67 WS REVOLUTION EVGA GTX 980  16gb G.skill Ripjaws 2400mhz 
Hard DriveOptical DriveCoolingOS
2x 64gb ADATA SSD RAID0 + 2x 4 TB spinners 2x Asus DVD+RW Swiftech Watercooling 360 rad mcp655 win 7 x64 Ubuntu x64 
MonitorKeyboardPowerCase
3x DELL S2740L 27'' IPS screens  Logitech G15 Corsair 1000 Watt Modular CM Stacker 810 
MouseMouse Pad
Logitech G9 OCZ Behemoth 
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