Motherboard cpu testing

bluescreens are usually caused by a memory issue, such as timings or mixing different types or brands. Or you may have a video driver issue with artifacts or freeze ups.

^ +1 very true. Though in some cases it can be the cpu, just not very likely.

What CPU, power supply, and graphics card are you using?

What you can always try is either test the psu to make sure it is applying enough wattage to your system, and run 'memtest' to check your memory for any errors.