First Build - Only boots via onboard power

SuperCat · 8 Jan 2009 at 21:44

I've just put together an i7 rig and the problem seems to be that the machine will only boot if I use the on-board power button. If I use the case (
Coolermaster Cosmos 1000) power button it turns on for 5 seconds then turns off. I've gotten into the bios and checked everything which appears normal.

Any ideas? I've checked the connections on the case > board (Asus Q-Connector) and it seems correct.

The specs are:

Core i7 920
Asus P6T Deluxe
Coolermaster Cosmos 1000
XFX GTX 280
6GB Corsair DDR3

Hope someone can help!

benwoodcock · 8 Jan 2009 at 21:58

Faulty cabling?

Mariusz · 8 Jan 2009 at 22:00

Does the pc power up correctly when you use the onboard button, do you get in to windows?
What power supply have you got?

Geckovich · 8 Jan 2009 at 22:00

Faulty button?

J.B · 8 Jan 2009 at 22:04

Have you tried shorting out the pins where the power button connects. Could be a faulty case button.

slowrunner · 8 Jan 2009 at 22:18

I remember someone else having trouble like this about a month or so ago. I think it turned out to be a fault with the adapter cable that goes between the psu motherboard plug and the motherboard socket?

Can't remember any other details unfortunately.

Cybermyk · 8 Jan 2009 at 22:20

Tried it without the q-connector?

sithlord · 8 Jan 2009 at 23:18

The Q-Connector pins might have come loose/faulty.