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PC locking to black screen

post #1 of 5
Thread Starter 
I have a new HD 7950, and shortly after installing it, my computer started locking to a black screen. I noticed this only happened when the PC shut down the monitor in the power save settings. My work around was to only put the whole PC to sleep or just the monitor off and leave the card outputting video. I'm past my 30 day exchange, but I was wondering if this sounded like a bad card or a drive conflict of some sort. I plan to reinstall windows after I finish the current game I'm playing. Thanks.
post #2 of 5
It could be down to an issue with the Motherboard and the sleep function. I remember on earlier BIOS reversions that the sleep function was disrupted due to enabling PLL overvoltage, however as you probably already know PLL Overvoltage is usually for those that are overclocking higher than 4.6+ so it was one or the other. I know that the issue has been fixed with a BIOS reversion but I'm just wondering, have you at all updated your BIOS since you got the motherboard? Might not be the problem but it's just a thought...

Is your CPU overclocked? Did you make any changes to the BIOS prior to changing your GPU's?
it looks alive
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Sandy Transformed
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CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
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it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
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post #3 of 5
Thread Starter 
I clocked it back to normal when I started running into this issue. I'm actually using an ASrock Extreme4, having recently received my RMA back from Asus. Leaving the power setting set to "never shut off monitor" works as a work around, just wastes power since these boards are supposed to use next to nothing when they idle.

Normally I would have just waited on the RMA materials to come back, but my neighbor was helping me rebuild an amplfyer at the time the original PC went out so I ened up replacing the motherboard and CPU.

I bought the vid card for the new PC so that I can setup the Asus board as a media/steam PC using an old case and PSU. I haven't updated my signature rig yet.

I guess my next step would be to leave it running for a day in safe mode and see if it freezes or not. As it doesn't give me any errors except "Computer restarted unexpectedly," I don't really have much to go on for troubleshooting, but safe mode should at least tell me if its a driver or hardware issue.

Also when it freezes, the reset button stops working. If I use reset, it'll sit for about 30 seconds, then shut itself off.
Edited by BackwardPawn - 5/23/13 at 11:26am
post #4 of 5
Thread Starter 
I was thinking about the whole PLL voltage issue that Asus had, and I'm sure the Extreme4 and my old P8 are based on similar designs since the companies are joined at the hip, but the sleep function actually works. Its when the video cards goes idle that the trouble starts. I'll leave it running in safe mode when I go to work tomorrow as I can typically reproduce the bug in a day, sometimes two.
post #5 of 5
Thread Starter 
Forgot to leave it in safe mode today. Since I plan to finish Bioshock and move onto BI this weekend, troubleshooting will have to wait until Monday. If anyone's run into a similar problem before, though let me know. I hope the problem is drivers because the card overclocks so well.
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