I would say that my computing skills are at an intermediate level but ive reached a problem thats got me got me thinking. What do you guys think.
Basically i had a 400w psu which worked fine but i wanted something a bit more powerful (just future proofing) so i got a 600w power supply unit. I installed it and switched the computer on, it posted but it doesnt boot, gets stuck on that black page with the blinking cursor. You guys are thinking 'ah it could be....' but heres the thing......it wont boot from the HDD or the CD-ROM. I have 2 dvd drives attached, so they arnt faulty, tried different bootable discs, then tried them in laptop-they work fine... ive resetted bios, cmos, the drives are all listed in bios as is the cpu & memory, ive reseated all components, etc. I have stripped the computer bare, minus only the necessary parts, no change. I thought i might have fried the motherboard or something while i was swapping the psu but that cant be the case as i will go on to explain.
I swapped the psu back from the 600w to the 400 w and it posted, and booted on the first go. It asked me if i wanted to boot from cd (which shows that the drive works) and when i ignored it, it booted into my OS.
The reason im stumped is because if the 600w was faulty then i dont understand why it posted and switches everything on but wont let the computer boot.....i really am keen to use the 600w instead of making do with the 400w because the 600w psu has allot more connectors and sata connections whereas with the 400w im using so many adapters for extra sata connections that i think its causing the sata drives to slowly fail (sometimes they dont respond, sometimes they make strange noises and they arnt just faulty full stop, i have experienced this with several new drives i have added over the last 18 months)
Any ideas that i havnt already tried will be most welcomed or any theories or advice....