Asus P5Q-E Boot problems

Digitalle · 22 Jul 2009 at 21:41

Last week I assembled my new PC. Overall everything went reasonably straight forward (apart from a few glitches installing the OS) but now I am having a very strange boot problem.

When I press the power button the system starts up for around a second and switches off. I then have to switch the PSU off, remove the cable, reconnect and try to boot again. I sometimes have to do this 2-3 times before I get any further.

When the system finally decides to boot, it still powers up and then powers off after about a second, but then 5-6 seconds later switches itself back on a boots normally. Iv found that all this seems to only happen when I have a USB device connected (wireless mouse dongle and USB speakers) although that may not have anything to do with it.

I have disabled all boot devices bar my HHD, other than that I haven't changed the BIOS at all.

If anyone has any suggestions that would be great, the spec of the PC are as follows:

P5Q-E Mobo (with BIOS 2101)
Intel Quad Core Q9550
Windows 7 RC x64bit
Asus Nvidia TOP GTX 260
500GB Samsung HD
Antec 900 Case
Antec TruePower 650 PSU
OCZ Platinum 4GB 1066MHz RAM

Thanks

Kanpai · 22 Jul 2009 at 22:58

From the top of my head, it may be a faulty PSU. Ask overclockers to check the PSU out for you, that is if you bought all the parts from them, I'm sure they'll be able to help.

Leeroy123 · 23 Jul 2009 at 12:40

Mate has the same board and his sometimes doesnt start on first boot, but its not his psu, not too sure what it is. He changed his psu and still did it. But his does work still. Weird problem.

Terrier_Jimlad · 23 Jul 2009 at 12:59

I had similar problem with the P5Q-E ... I swapped it for a Gigabyte after RMA'd 3 of them for different reasons

BeeP · 23 Jul 2009 at 16:42

Mine runs fine, the only time it really does the double boot thingy is when it crashes (power cut mainly) or when I get a bit ott with the overclock.

Do you get an messages when it does it or not?

Digitalle · 23 Jul 2009 at 19:57

Bit of a Tool

Ok, so I may be a bit of an idiot.....I'll let you decide

I think I have solved my peculiar problem. Had the tower up on the table about to strip the hell out it and start again, when something caught my attention:

For some OUTRAGEOUS reason, the 8 pin EATX12v socket on the mobo came with a small plastic cover over the 4 of the pins...and me being a complete sausage muncher plugged in the 4 pin cable from the PSU and thought nothing of it.

Once realising my mistake I removed the small cover and attached the proper 8 pin plug....and so far the machine has booted up fine since (twice to be exact but I see that as a big step) so yes it was just a matter of the mobo not getting enough power and when it was asked to boot with the extra strain on the USB's it told me where to go.

Lets hope it holds out.

Thanks everyone