I need some diagnostic programs...

I was wondering if somebody could help me. I need a freeware diagnostic program(s) that will test the following components for defects or pending failure: Motherboard, CPU, Power Supply, RAM, HDD, anything else that would cause Vista to suddenly freeze completely.

Use Memtest to test RAM I ran it overnight both in Vista and once again during boot mode and they both came back clean, I ran Western Digital's HDD diagnostic program it keeps coming up clean. Power Supply probably can't be tested but if theres a way It'd be nice. I'm most interested in testing the Motherboard and it's chipset, various L caches, SSE, CPU I have a Quad Core, and other vital parts of the motherboard. BIOS I already know needs to be upgraded but thats to fix a glitch it contains.

 

Not sure how well this works. Have not used it yet. May be worth a look.

http://www.resplendence.com/whocrashed

 

http://www.ultimatebootcd.com/

This is a compilation CD of a lot of manufacturer's diagnostics etc. It is a bootable disc, so you just burn the ISO to a disc, put it in the PC, set the BIOS to boot from the CD-ROM and use the diagnostics.