Windows 7: PC keeps on hanging after 2hours. But can run OCCT for 12hrs+, No BSOD

Hi guys I am faced with this extremely frustrating problem for 5 days already


Problem: PC Hangs after 2hours. Keyboard not working as well.
However when running stress programs, PC can run up to 12hrs++ without hanging



i7 2600K
ASUS Sabertooth P67
Corsair Vengence 2x4GB 1600mhz
Sapphire 5870
Intel 320 120GB SSD
Seasonic X750
Windows 7 Home Premium

CPU Watercooled, No leaks whatsoever.
No overclock, No BSODs

Lastest BIOS
I have also reinstall my Windows 7 but still having the same problem

Drivers installed:
Ethernet Driver
Lastest AMD 5800 Driver
Microsoft Security Essentials
Windows Updates, including SP1

Processor
Temps: Idle-low 20s Load-40+ to 50+
12+hours OCCT no problem

Rams
Memtest 86+ 10passes
Windows Diagnostic Tool - No problem


Graphics
4hrs Furmark
Temps: Idle 30+ Load 60+

SSD
Updated firmware using Intel SSD toolbox
Ran HDTune diagnostic - No problem
Ran Intel SSD diagnostic - No problem

What bit version of 7 are you using? I see there is no mention of an updated chipset driver...have you done that driver update?

Hi, i listed it down on my profile at the side hahas

oops its Windows 7 Home Premium 64bit.

Yes, I have updated the chipset driver. With or without that driver, the problem still exists

Do you have any non-essential hardware you can remove? Also, have you monitored the services being run at the time the system locks up?

OK...I see your using the 64 bit version. What stands out for me is a RAM issue. Do you have the right/compatible RAM? Do you have the RAM in the right slots. After looking at your mobo system specs and with what RAM you have listed, I see that it's not on the QVL. That's not to say your RAM wont work just that it's not on the QVL list for compatible RAM for your mobo.

Taking in consideration for this particular mobo, that it has military grade specs, that leads me to believe that following the QVL would be advised.

ASUSTeK Computer Inc. - Motherboards- ASUS SABERTOOTH P67

Nope, I have connected the minimal.

Hmm the services being run? Using task manager, there are currently 43 processes.
1/3 of them are windows one.

Hi i too suspect its the rams.

I mean, it might not be significant, but i have run Memtest86+ in DOS and windows diagnostic tool with passes on both.
Also, I can go into BIOS with both sticks of rams.


I'm searching the net for users who have used non-QVL of RAMS as we speak


*it seems that this ram has been tested to work with my mobo by Corsair?
Learn & Explore

Just to make sure...you do have the latest BIOS installed. The latest version is ... 2103 dated 2011.12.14, which states memory compatibility and system stability.




You can confirm what BIOS version you have by downloading and running CPU-Z and when the app is open click on "Mainboard" and look down in the BIOS section for version and date.

Yeap, I am currently on that BIOS

Have you changed any settings in the BIOS? Just to make sure....set the BIOS to default settings and save and exit out.