new system problem - freeze

I have new system just built

i5-750
GA-p55a-ud4p
OCZ 2x2 gb ram
samsung 1tb
powercolor hd 5770
antec 650w
lg dvd writer
window 7 64bit


computer freeze with one color on screen (all red, or all grey, or blank screen, etc) when i am playing 3d intensive games or just surfing the net. it happens few times on one day or doesnt happen for two days or so.

One thing I noticed is computer screen blink (goes blank and come back(about less than 0.5 sec)) couple times or so before it freeze.
Another one is when i tried to read the virtual drive, it give me reading error but the image file is already been read correctly or can be read correctly after reboot.


I have tried resetting memories and video cards....same result.
I dont know what else i should do the fix this problem and i have almost nothing to change to see if one of component is problem.

Please any suggestion would be helpful. thank you in advance.

May be worth running Memtest86, free memory checker. Even a new stick can have a glitch.

Two things you can try is making sure the processor is being properly cooled to a safe level and making sure the video card is not over heating.

Also make sure that at peek video performance, there is enough amperage from the power supply to make the graphics card happy.

found the errors with memtest86+....it detects errors but not all the time.
someone told me it maybe incompatible....
going to exchange them...hope it works fine with new ones.

found the errors with memtest86+....it detects errors but not all the time.
someone told me it maybe incompatible....
going to exchange them...hope it works fine with new ones.

Don't take the word of others me included read the MB manual for compatibility, some boards have jumpers to use different types of ram. If you have more then one stick test them individually, just because they are new does not mean there can not be anything wrong with them. Random ram issues are rarely in the system its self 99+% they are in the ram.

Phil

Edited by OldPhil, 23 January 2010 - 08:03 AM.

If you get any errors running Memtest 86+...that's cause for concern, IMO.

Have you run tests on each module separately...first, in the same slot, then moving to the next slot?

Louis