My computer hasn't been booting and so I've stripped my computer down to just the power supply and motherboard (cpu & fan). Found out that when the 4pin CPU power connector is plugged in the computer won't boot (power supply attempts to start and then dies). Without it, it seems to 'work' (ie. cpu fan runs) Any ideas what the issue may be?
May be now you have figured out another solution for this.but let me tell my problem which occurred in last month.i changed every part other than the CPU.finally after replacing cpu, computer worked.since it running without any faults.try to repalce the CPU.