Question on new build

[Kribby2006]

Hi Clever Forum People,

Not long built a new system for my bro using the following mobo with a SB 2500K:

http://www.overclockers.co.uk/showproduct.php?prodid=MB-443-AS

Initially, we tried the Auto OC thing within the BIOS just to see how it went and it clocked it to 4.3GHz. We noticed during the process that it essentially shut down the PC and restarted it a couple of times which I understand to be normal.

I then started a fresh to see what speed I could get out of the chip which again went well, we ended up settling on 4.5GHz for 24/7 use

The problem now is that from time to time, upon cold boot, i.e first time the pc is switched on of a day, it seems to restart a couple of times (as it did with the auto OC) then boot into windows normally. After that it runs fine.

Anyone seen this behaviour or have any idea as to why it may be happening?

Cheers...

 

[Kribby2006]

For anyone thats experiencing a similar prob, I found this:

"Some of you may have been experiencing a double POST on your P8P67 series motherboard whereupon after powering on the system from a cold boot, the board will power on and then immediately reset itself before it actually POSTs and shows any display on the screen. I’ll explain the fix below and give some information about why this happens.

First, I would like to stress the importance of flashing the BIOS to the latest BIOS revision as listed on our support website, http://support.asus.com/download. You can access the ASUS EZ Flash tool from within the UEFI (advanced options, tools) to flash the BIOS from any removable device such as a USB flash drive.
From time to time we needed to implement full resets in order to maintain stability due to the architecture of the Sandy Bridge platform. For instance, the system may require one full reset when the PCH power has been cut during S5 power state. To fix the most common additional reset (double POST when powering on from off state), enter UEFI BIOS -> go to ‘Advanced’ tab -> go down to ‘APM’, press Enter -> enable the “Power on by PCIe.” function. Then press F10 to save & exit. After save & exit, let the system boot into Windows or other OS, then perform a proper shutdown: Start button -> Shut down. You will no longer have the double POST. We will fix this in an upcoming BIOS release.

From http://www.xtremesystems.org/forums/...d.php?t=265454