Brand new bulid with strange problem
I am doing a PC build for the first time and I'm stuck on this problem. When I hit the power button all the fans except the CPU fan spin for a few seconds and the power led blinks once. Then a moment later these fans spin for a few seconds and the power led blinks again. From time to time the CPU fan will join this pattern This pattern repeats until I switch off the power at the PSU. Additionally I get no indication of life from the Hard-drive, CD-drive or monitor (it stays blank - no bios and no OS installed yet).
I'm struggling to find a solution to this problem.
The following actions have either killed the system entirely, switched off the power LED or not changed the situation:
Removing all extension cards
Removing all ram
Plugging in case cables differently
Unplugging all case cables expect power switch
disconnecting case fans
discounting any/all of monitor, hard-drive, cd-drive
Checking for loose screws
Remounting CPU / CPU fan
Many combination's of the above
I've come to the conclusion that the PSU, motherboard or CPU might be defective but I don't know how to test for this. All replies are gratefully received. (I can give machine specs if needed)