You’ve followed our guide to the letter, pressed the power button and then – nothing. Or, if nothing, a series of beeps which suggest something’s not well. If the power doesn’t come on, switch off, then check your connections – particularly the front panel ones and the ATX plugs on the power supply.
If your PC powers up, but emits a series of beeps before shutting down, go to www.bioscentral.com/beepcodes/awardbeep.htm to search for clues. Most codes refer to incorrectly seated RAM or the CPU, so check these. Also check that the CPU fan is plugged in.
If you get persistent RAM errors, try removing one stick and trying again. If it works, reseat the second stick of RAM and you may find that all is now well, or it may…