What chip are you currently using?
wiki says theres 2 theres 2 socket p's
but intel lists both as PGA478
but from another site
The Core 2 Duo X9100 can be used in a Socket P socket with 479 pins , 479?, confused!
below from wiki
"Penryn XE" (45 nm)
These models feature an unlocked clock multiplier
All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), iAMT2 (Intel Active Management), Intel VT-x, TXT
Penryn XE processors support Dynamic Front Side Bus Throttling between 400–800 MT/s and 533–1066 MT/s.
Die size: 107 mm2
Steppings: C0, E0
Core 2 Extreme X9000
SLAQJ (C0)
SLAZ3 (C0)
2.8 GHz 6 MB 800 MT/s 14× 1.062–1.150 V
44 W
Core 2 Extreme X9100
SLB48 (C0)
SLG8M (C0)
SLGE7 (E0)
3.07 GHz 6 MB 1066 MT/s 11.5× 1.062–1.150 V
44 W
Socket P July 2008
AW80576GH0836M
$851
Digging deeper
Socket 479 (mPGA479M) is the CPU socket for the Intel Pentium M and Celeron M, mobile processors.[1] Normally used in laptops, but has also been used with Tualatin-M Pentium III processors. The official naming by Intel is µFCPGA and µPGA479M.
There exist multiple electrically incompatible, but mechanically compatible processor families that are available in PGA packages using this socket or variants thereof:[1]
Socket 478 for Pentium 4 and Celeron series desktop CPUs;
Socket 479 for Pentium III-M (released in 2001);
Socket 479 for Pentium M and Celeron M 3xx (this was the most common version of the socket, and was released in 2003);
Socket M for Intel Core, Core 2 and Celeron M 4xx and 5xx processors; and
Socket P for Core 2 processors.
Even the Intel's CPU specifications seem to be not clear enough on the distinction and instead use the package/socket designations PGA478 or PPGA478 for more than 1 of the above sockets
Another edit, leftfield thinking, from hwbot fast systems using your board browse through they will list the chips they used
http://hwbot.org/hardware/motherboard/i45gmt-hr/
