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Random Blank Screen Crashes

Last response: in Graphics & Displays
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August 4, 2010 3:37:31 PM

Specs:

EVGA E758-A1 3-Way SLI (x16/x16/x8) LGA 1366 Intel X58 ATX Intel Motherboard
Intel Core i7-920 Bloomfield 2.66GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Processor
EVGA 896-P3-1267-AR GeForce GTX 260 Core 216 Superclocked Edition 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI
G.SKILL 3GB (3 x 1GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory Model F3-12800CL9T-3GBNQ
Western Digital Caviar GP WD5000AACS 500GB 5400 to 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
ATAPI DVD A DH20A4P
CORSAIR CMPSU-750TX 750W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC
Windows 7 Ultimate 64-bit
Latest BIOS (Award 6/30/10) and NVIDIA drivers (7/8/10 - 8.17.12.5896), all latest Windows updates.

My computer keeps randomly crashing on me, where my screens go blank and after a couple of seconds the sound dies. Computer is unresponsive, temperature jumps from 54 to 61 in less than a minute. Only way to fix is to restart computer. Seems to happen at random times; most recent crash was after a game of Starcraft II, other times it will crash after 5 minutes, or maybe 3 hours.

I've removed/reset all my hardware items, replugged all the cords. With the exception of the hard drives, all devices have their own power cord from the PSU. Ran MemTest overnight, 25 passed tests with no errors. All updates are latest, newest drivers, recently updated BIOS to most recent version and I'm still getting these errors. Not sure when this started (probably about a month ago), but it wasn't as bad, maybe a crash once every other day. Was away on vacation for a month, when I returned this began happening nearly every time I have the computer on.

I'm at a complete loss here, any help would be greatly appreciated, thanks.
August 4, 2010 10:07:38 PM

Not sure if it matters, but I'm running a dual-screen setup with two Samsung SyncMaster 2343s. Just had the computer running for 5+ hours, not a single crash. Then as I was adding another torrent to uTorrent I noticed flickering pixels every centimeter across the screen. I barely touched the case of my computer and it crashed again. Rebooted, opened up firefox to see if I had any replies, and it crashed again.

A few of the threads I've been seeing have mentioned power issues and static electricity. Would having my computer on the floor (wooden floor) contribute to that? It's an Antec Nine Hundred case, so it's built pretty well. Also, the only things I have plugged into my power strip are the two monitors, computer, and my speakers. I've unplugged everything else and moved them to other outlets, so I don't think it's a power issue.
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August 11, 2010 9:11:00 PM

Went away on a business trip for a week and was hoping some responses. Anyone? Any help would be greatly appreciated.
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