Firstly i am very sorry if this particular problem has been covered before, i spent some time searching through the forums (as i have on many previous occasions and found the answer i was looking for) but unfortunately 'windows 7 computer freeze' seems to apply to a huge range of problems!
Around a year ago, I built my computer for use in the office...it is (or was i guess) pretty high end because I have to run and then visualise large simulations in my work. Pretty much since the first day of running it i have been plagued with an extremely annoying fault - at seemingly random times, the computer will completely freeze to the point where even the caps lock key doesn't toggle the light on the keyboard. If i happen to be playing music or a video (not alway the case) the freeze will be accompanied by a buzzing noise in my headphones/speakers. The BSOD never appears, and checking in the system event viewer (control panel > admin tools > event viewer) there is never any error messages or warnings immediately prior a freeze...the only error there is the unexpected shutdown due to me having to manually reset ("The previous system shutdown at 14:32:49 on 29/04/2014 was unexpected.")
I have tried a clean install of windows, I've tried swapping to several different browsers (thought one of them might be causing the problem as that's about the only program I have open in the background all the time), I have tried updating all the drivers I can (I seem to be unable to update the AMD Radeon graphics driver though). This problem seems to happen at random times day or night, somtimes a couple of times a day, sometimes it won't happen for a couple of weeks. I ususally leave my computer on overnight so I can remotely access the hard drive from home, when I do this i generally leave it with virtually no programs running at all and it still sometimes freezes overnight. I am running an up to date version of Symantec Endpoint Protection which is configured to update and run a scan every night, no problems found so far.
I considered that overheating might be ther problem, but I run a liquid cooling block on the CPU and the hardware monitoring software says it hasn't ever gone above about 30 degrees. The graphics card was running at around 55-60 degrees which shouldn't be a problem, but just in case i am now running MSI afterburner to keep the card temp at aroudn 40 degrees, and I am still having the problems.
Any suggestions as to how to proceed would be much appreciated as I work on this computer all day every day, and these random freezes are really becoming annoying!
OS - Windows 7 Ultimate 64-bit
Graphics - AMD Radeon HD 7900 series
CPU - Intel Core i7-3820 (3.60 GHz)
Hard Disk - Seagate ST31000524AS 3.5 inch Barracuda 1TB GB 7200rpm
SSD - Crucial CT128M4SSD2 128GB M4 SATA III 6Gb/s MLC 2.5 Inch Internal SSD
Memory - Corsair Dominator 1.5V 16GB Dual/Quad Channel DDR3 (CMT16GX3M4X2133C9)
Motherboard - ASRock X79 Extreme4-M
PSU - OCZ ZX Series 850W 80+ GOLD PSU Fully Modular PSU
Edited by hamluis, 07 August 2014 - 01:07 PM.
Moved from Win 7 to Internal Hardware - Hamluis.