New build keeps crashing

Nexusnebula

Honorable
Oct 30, 2013
13
0
10,510
Hi, I just recently built my PC and am experiencing random crashes, they can happen as soon as windows boots up or a good 6 hours into the system being used, it seems to be completely random timings.
When the crashes happen, the displays (Dual monitors) either freeze for a few seconds then go fuzzy with lots of lines all over the screen, or they go completley idle asif the DVI cable was removed. The system then shuts down after about 10 seconds.

The specs are
i5 4670K 4 Core 3.4GHZ
MSI B85 G43 motherboard
6GB DDR3
ASUS Radeon HD 7770 2GB
Corsair CXM 750W Modular PSU

The GPU and PSU arent new, they have been used for atleast 6 months prior to this build so they arent faulty

If anyone has any idea as to what might be the problem please contribute, thanks!

Update: Ive now tested all of these things one by one:
Changed power cables for every component
Tried the drivers that came on a CD ROM for every component, and the up to date versions available online
RAM Check - No faults
CPU burn in for 1 hour - did not crash
GPU burn in for 1 hour - did not crash
Temperatures are normal. no dust build up on any component
Tried using only one display
Tried using a different PCI-E slot for my GPU

Still experiencing shutdowns
 
Solution

firstly check your temps to make sure everything is ok there (not overheating)...

dj1997

Distinguished
Apr 17, 2010
323
1
18,815

firstly check your temps to make sure everything is ok there (not overheating) graphics inpaticular
also I see you have 6gb of ram if this is made up of different modules remove the odd one/s out and then test to see if the problem is gone
 
Solution

Nexusnebula

Honorable
Oct 30, 2013
13
0
10,510
I have been looking at temps and everything seems fine, my gpu runs at about 70 after a good few hours of gaming

I dont know alot about RAM, but im currently using 2 2Gb sticks and 2 1GB, with the 2GB sticks in DIMM 1 and DIMM 3, and the 1GB sticks in DIMM 2 and DIMM 4

How would i go about testing the RAM?

Thanks
 

dj1997

Distinguished
Apr 17, 2010
323
1
18,815

are they different speeds ??
just install the pair of 2gb then test if ok the do the same for the 1gb sticks if ok then they just don't play well together usually due to the motherboard running incompatible setting on two of the different modules (they all have to have the same settings so the motherboard will only run identicle modules correctly