Random BSOD, Error ntoskrnl.exe+cca4a

A bad slot will show up as errors in memtest. did it pass with all of your RAM installed? Also if the RAM sticks aren't matched it can cause issues too, even if the same brans and model but purchased at different times.

Graphics card test:


Video Card Stress Test with Furmark

Ok Thunder this might sound a little odd but to eliminate it do this
PSU- Jump Start

for a reference
PowerSupply 101: A Reference Of Specifications - Power Supplies asyou will see there is a +/- 5% variance that can make all the difference so11.4v is way too low and 12.6v way too high.

Plus remember correct bolts do not mean correct current (amps - in turn watts)

Just take note of the reference to Power_Good in section 2 and the volts at pin 8 (grey cable) it has to be between 2.4v and 6.0v for the timer chip to fire the system up outside those parameters and the machine will crash as it means the volts to the board are either likely to damage it or not enough to run the board / system.

thunderkiss said:

So I just ran Prime95 for 2 hours and everything passed and a few hours later I ran Furmark for 10-15 minutes and didn't experience any artifacts, is it safe to assume that my CPU and graphics card are not the problem?

@ICit2lol: Do you think my PSU has a voltage problem?

that psu is more than enough to power that system unless it is having fluctuations. is your psu hot to the touch in operation? i mean the top of it not the back, it should run fairly cool since it should run at like 50% load at most. you could use a program to monitor and log your voltages for like 24 hours and see if they start to fluctuate more than what they should be. AIDIA64 does this but idk how accurate it is.

A PSU can cause a multitude of issues that mimic other hardware problems and is often overlooked in diagnoses. Rvcjew has a good idea with AIDA64 and getting at least a 24 hour log of output. One can test OK on the bench and fail under a booted, running system.

This HWMonitor CPUID - System & hardware benchmark, monitoring, reporting is another way to check as well. Ignore the big green Download button, the program is over to the right, a white lightning bolt in a red square, 1.24 Setup.

Your PSU may be fine but it will help eliminate one item.

thunderkiss said:

So I just ran Prime95 for 2 hours and everything passed and a few hours later I ran Furmark for 10-15 minutes and didn't experience any artifacts, is it safe to assume that my CPU and graphics card are not the problem?

@ICit2lol: Do you think my PSU has a voltage problem?

Sorry late reply mate have been away again no I am not suggesting it has a problem but as Britton says it is really to eliminate that source as a problem area. It takes very little time to check and it might just be your problem.

With HWmonitor open, press Ctrl+S to start monitoring. AIDA64 should not fry your system.