I have a motherboard, with the correct memory, and a CPU/cooler. I also have a PSU, which seems to work.
I put the bits together, connected a HD cable but left off the HD for the moment, and also connected a keyboard and mouse through a 2way electronic KVM switch (other PC turned off).
Turned on the PSU. Nothing. More in hope than expectation, pressed the (working) make-when-pressed button connected to the what I thought were the correct pins on the pin-array on the m/b : still nothing.
When I tested the psu using my psu tester, everything seemed to work; the fan started to spin in the psu. When connected to the m/b the psu fan did not spin, I think the m/b isn't firing because it is not receiving power, maybe other things too.
I did remember to connect the main power connector and the "P4" connector but that's all from the psu.
Why isn't it carrying out the POST ? Why can't I check the BIOS set up ? That's all I want (until the next stage....). What elementary thing have I overlooked ?
Dumb_Question
21.May.2015