I've just done my first custom build. Everything looks like it powers on fine (the heatsink fan spins and the motherboard light is on). The problem is after switch on there's 3 beeps, 1 long 2 short. There's also no video signal to the monitor from either the on board graphics or the dedicated card. At first after some google searching I thought it might be down to bad ram. So I replaced the Corsair 4gb ram for some Kingston 4gb ram that was on the motherboards compatibility list, same result. Now I think I've narrowed it down to a CPU/Motherboard issue. If I remove the CPU and boot up there's no beeping. Still there's no video signal, though. So I can't tell if it's down to a faulty Motherboard, CPU or graphics card. Or even something else...
Any idea where the problem lies?
ASUS M5A78L-M/USB3
AMD Athlon II X3 450 AM3
Sapphire HD5450 1GB DDR3
Kingston 4GB 1333MHz DDR3
CIT 550w Silent ATX Power Supply
Any help appreciated!
Edited by Snooze10, 04 April 2012 - 08:39 AM.