Where can i find the board # on a Lenovo 775 board it came in a K300 case - M#5316-2fu build?

[PsychoDaddy]

Basically have a Lenovo K300/no power boost or lights
MTM:5316-2fu.
Build date is 2010-8-8,
Machine Type:10021.
Found the PSREF sheets, my MTM is not in the list, pretty close to the 5316-2cu,I got it at BestBuy, it has a E5700/4GB- PC3-8500 1066MHz DDR3, non-parity, four 240-pin DIMM sockets, 2blue/2green.
Can't find the motherboard # to upgrade CPU/memory, ran CPU-Z and board was to be filled by OEM, G45/43chipset, Lenovo BIOS 58KT36AUS Date: 20091014.
Just need to know, Can I get a better CPU, E8600 or better? Can I get better/more memory?

All ready upgraded PSU + 4gbGPU, Runs ARK on Steam, not well but was surprised it played ok.

 

[Pentium4User]

hello now the cpu support list for the board you have right now barely has any info but I know you can upgrade to a q8400 it a quad core or you can get another lga 775 board that micro atx like this http://www.ebay.com/itm/ASUS-P5G41T-M-SI-LGA-775-Intel-G41-Micro-ATX-Intel-Motherboard-/182524814571?hash=item2a7f53a4eb:g:Yc8AAOSw0fhXkV3V it supports more quads but most of the higher chips only difference is cache size lga and clock speed. And the lga 775 is a old socket if you want extremely better performance I would upgrade to lga 1150 to and i3 at-least because in the future the i3 system would have better performance to new games that come out.