Hi, everyone! I hope someone can help me figure out this one. Thanks!
The Problem
Every now and then my computer slows down to a crawl, about twice a day. This can happen anywhere between several hours of operation and a few seconds after startup. What seemed to be a complete freeze at first, turned out to be a veeeeeeery slow mouse (updating its position about every 10 seconds). On several occasions I've managed to move the mouse to a secondary screen, where it moved fine. Moving it back to the main screen slowed it down again. I get a blue screen after several minutes.
My System
OS: Windows 7 Ultimate
CPU: Intel Core i7-920 Bloomfield 2.66GHz LGA 1366 130W Quad-Core Processor BX80601920
Motherboard: ASUS P6T Deluxe/OC Palm LGA 1366 Intel X58 ATX Intel Motherboard
RAM: 12GB - CORSAIR XMS3 12GB (6 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model HX3X12G1333C9
Hard Drives (3 of the same): Western Digital WD Black WD6401AALS 640GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
PSU: CORSAIR Enthusiast Series CMPSU-850TX 850W ATX12V v2.2 / EPS12V v2.91 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC Power Supply
Video Cards (2 of the same): EVGA 896-P3-1260-AR GeForce GTX 260 896MB 448-Bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Sound Card: Creative 70SB073A00000 7.1 Channels 24-bit 96KHz PCI Interface Sound Blaster X-Fi XtremeGamer
Screens:
What I've Tried So Far
A History of Blue Screens
Not sure if this is of any importance, but I had some issues with Vista before.
The Problem
Every now and then my computer slows down to a crawl, about twice a day. This can happen anywhere between several hours of operation and a few seconds after startup. What seemed to be a complete freeze at first, turned out to be a veeeeeeery slow mouse (updating its position about every 10 seconds). On several occasions I've managed to move the mouse to a secondary screen, where it moved fine. Moving it back to the main screen slowed it down again. I get a blue screen after several minutes.
My System
OS: Windows 7 Ultimate
CPU: Intel Core i7-920 Bloomfield 2.66GHz LGA 1366 130W Quad-Core Processor BX80601920
Motherboard: ASUS P6T Deluxe/OC Palm LGA 1366 Intel X58 ATX Intel Motherboard
RAM: 12GB - CORSAIR XMS3 12GB (6 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model HX3X12G1333C9
Hard Drives (3 of the same): Western Digital WD Black WD6401AALS 640GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
PSU: CORSAIR Enthusiast Series CMPSU-850TX 850W ATX12V v2.2 / EPS12V v2.91 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC Power Supply
Video Cards (2 of the same): EVGA 896-P3-1260-AR GeForce GTX 260 896MB 448-Bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Sound Card: Creative 70SB073A00000 7.1 Channels 24-bit 96KHz PCI Interface Sound Blaster X-Fi XtremeGamer
Screens:
■Dell 1908FP-BLK
■Dell S2409W
■Wacom Cintiq 21X
What I've Tried So Far
■Examined the minidump files (not every freeze creates one). No idea what I'm looking for. Various .exe are blamed.
■Ran memtest86+ for 32 hours. It finished 11 passes without detecting any errors.
■Reinstalled Windows. No luck.
A History of Blue Screens
Not sure if this is of any importance, but I had some issues with Vista before.
■I built the computer in April 2009. Originally I had Windows Vista Ultimate installed.
■Sometime 2011 I kept getting blue screens quite frequently. Running the computer in safe mode fixed the problem, so I assumed it might be a driver. I updated all my drivers, but with no luck. ■Reinstalling Windows seemed to fix it, but after a short while the blue screens kept happening again.
■In July 2011 I upgraded to Windows 7 (clean install). This fixed the issue for a while.
■In May 2012, the computer crashed constantly. A system restore fixed this for a month. Then the blue screens returned, though way less frequently.
■In August 2012 the crashes became more frequent again, so I did a clean Windows install, including a hard drive format of my C drive.
■All went well until in November 2013, the computer started freezing. This is different from the previous blue screens.
■In January 2014 I reinstalled Windows 7. No luck. The freezings occur just as often.