P55-GD65 registers only half of memory (now won't even boot)

Question

Hi
i have big problem with deployment of new system. Specs :
MSI P55-GD65
Patriot Sector 5 PGV34G1600ELK 2X2GB
Intel i7 860
CHIEFTEC 500W
NV 7900 gs (connected for diagnostic reasons)
First, BIOS recognized only half amount of RAM (2gb from 4gb)
-updated BIOS to 1.5 - nothing changed
-cleared CMOS and restored defaults - nothing changed
Second, i tried to instal win7/win2008r2 - freezes after installation booting progress bar disappears (tried to boot from USB key and from network deployment server)
Then, i tried to install win2003 - success! but system works unstable (eg once frozen at cinebench multicore test, once BSOD while booting etc)
CPU-Z recognized properly amount of installed RAM (and said that dual channel is disabled), but system still says that is only 2 gigs of ram.
Then, i found on this board that CPU bented pins could cause the problem, so i checked pins, and they seems to look fine (Hi res photo of pins)
After i mounted CPU back, the system event won't boot - all six CPU phase diods on main board are active, fans turns on, but boot process won't start.
Anyone know is there any way to fix it? (before i give back everything to vendor)

Answer 1

i just bought my MSI P55-GD80 yesterday. i just hope i wont be getting the same issue as some other guys do.
im planning on building my new rig tomorrow because i dont have my memory cards and video card yet(might get these items tomorrow).
so yeah, i will be checking the CPU seating. will try to seat it once then remove it for the pin contacts checking. and i hope too that the mobo i got has at least the 1.4 BIOS version, because to tell the truth i never done any BIOS flashing before(actually ive done it once with my XPS 630i rig and it went easy for me to do. i dont know whats the procedure for the MSI boards so no idea at all). and to tell the truth, this is my first time building my own rig so im a bit excited and i prioritize durability(long lasting) and always hoping not to get any problem building my very own rig for the first time.
**so here is my question :
how will i know if the CPU pad doesnt have a good contact with the socket pins?
what should i do if after checking i find out that my CPU pad doesnt have a good contact with the socket pins?
what if after checking i find out my CPU doesnt have good contact with the socket pins but with my GD80 reading 4gb of my memory cards?
if you wanna know where i got my board, i bought it here in japan from a known computer parts retailer. and yes im living here for now and its really hard for me to return my product if its faulty because, first im not that good at speaking japanese language, and second they might have different procedure for returning products that i might not know.
thanks in advance, will appreciate any help and reply,
Skaahr
***edited : i just checked the sticker from my mobo which i read from the other topic that tells it shows the BIOS version in your mobo, the tiny green sticker shows me this " IMS140 " does it means i have the 1.4 BIOS version?