Have you read the manual?(Yes I know it's boring) Have you tried to boot with only one stick of memory fitted? Is the CPU and heat sink fitted correctly? Have you connected all the power conectors to the motherboard? Is the motherboard fitted correctly in the case? ie no shorting.
Have built many systems in my time,never had this prob before.
Have rechecked all connections and boards.
M/Board appears to show ok with all the correct status lights on.
Striped system down to minimal config (1-memory stick, no hard/drives or Cdroms connected,floppy disconnected, checked graphics board in another comp, tried different working mem stick from another comp)
Can't prove proc or M/Board as have no others to try.
No beeps and will not go to post.
Begining to suspect proc but without substitute no way to prove it.
Can't find the code of C6 displayed on M/Board in the manual so think its a general error code rather than a specific one.
I had the same problem last year.With the dilemma was it my motherboard or CPU.It turned out to be the motherboard.I know this does not help you. I could not think of a way to tell which one was at fault so I took the plunge and sent the Motherboard back.
Does anybody else know of a way to tell if it's a motherboard or processor that at fault?Without having replacements to try.