C caalger New member Joined Aug 2, 2013 Posts 1 Aug 2, 2013 #1 I've been trying to troubleshoot an issue where when I use 3D intensive graphics (typically for gaming) the video will lockup and the application will crash. I will *sometimes* have luck if I do a cold boot but oftentimes the problem comes right back. It might be 1 minute or 1 hour - but it is definitely recurring. I am at my wit's end and if anyone has any suggestions, it would be greatly appreciated!!!! Things I have tried: - RMAed the video adapater - Verified stable voltage on the 12V rail at boot-up BIOS (steady at 12.04) - Update to latest driver (certified) from Nvidia - Update to latest driver (beta) from Nvidia - Repeat after using drivercleaner - Update audio, mouse, chipset, etc drivers - RAM error check using Windows tools (reboot and scan memory for errors) - Reset mainboard BIOS to "safe settings" - Reset video adapter to "default settings" - Overvolt the video adapter - Ramp up fan speed on video adapter - Change resolution settings within application - Fullscreen, Windowed (same res as desktop), Windowed (custom res), Windowed fullscreen Tools I am using: - EVGA Precision X - SpeedFan - DPC Latency Checker - Windows Performance Tools System configuration: - mainboard - Gigabyte GA-Z68XP-UD4 - RAM - Corsair Vengeance 8GB (2 x 4GB) DDR3 1600 (PC3 12800) - Processor - Intel i7-2600K 3.4GHz - video adapter - EVGA 560Ti 448 cores FTW - hard drives - Intel SSD, WD HDD - case - Cooler Master HAF 932 - PSU - Corsair Enthusiast TX750 - operating system - Windows 7 Pro (64-bit) with SP1 Temperatures: - GPU temp under load ranges from 64-69C, 40-45C without load - CPU temp is nominal (30-36C) DXDiag: Click for attachment: View attachment DxDiag.txt Screenshot of the DPC/Windows Performance Tools report after a crash: Any ideas? Your help would be GREATLY appreciated.