Have to turn computer on twice?

Hey guys,

Just wondering why I need to turn my computer on twice, sometimes three times for it to boot up successfully?

When I turn it on the first time, nothing comes on screen and I don't hear the single beep (successful boot). So I switch off the PC (hold the power button for 3 seconds), then switch it back on and then it boots fine.

What do you guys reckon it is? It's has a brand new motherboard (Gigabye 8I95P Pro), cpu (Intel 2.6 Dual Core) and ram (2 X 512mb DDR2) that I've just installed and still using old HD, Graphics card, DVD drives and Case.

Thanks in advance,
Brandon.

Could be the psu, I had an old one a while back that did this, what type of psu do you have?

Hey thanks for the reply.

I just changed the PSU and it's working fine now

Im not too sure what PSU it is. It's a 350w and came with my Super Flower case.

Thanks again

if the PSU comes with the case. most cases it is a cheap one.. never cheap out on a PSU.

Im glad the problem is sorted out