Modded ASUS P5Q/Pro/Deluxe/Premium BIOS

[zalbard]

Got some strange thing here... When I boot up my PC for the very first time after turning it on, it reboots like 2 seconds after, then runs fine... After that if I turn it on or off or reboot, it boots up and works fine, also passes Memtest and Intel Burn Test easily. But if I turn it off for a while (so my PSU turns off entirely and stops making any noises), then boot it up again, I get the same auto reboot. What could be the issue? Not like it's making any problems, just a bit odd and annoying.
And also, any idea where I can look up DRAM 2nd and 3rd information BIOS values for Corsair DDR2 modules? Seems like my board changes them time to time (3rd info +-1 for most values) as they are set as Auto atm.

Edit: overclocked my E6400 to 3.6GHz @ 1.4v, seems to be running fine. Memory 900Mhz (that's 100 more than stock) 5-4-4-12 @ 2.16v, pity I couldn't push CL4.
System is very stable, just wish I could get rid of this additional reboot crap...
And using m1611 ofc.