16gb RAM caps as 8gb in bios. (4x4gb) in an asus p8z77-v

[Legan]

I have 4x4GB sticks of RAM in my machine. However in BIOS it only see's 8GB total. CPU-Z and BIOS SPD info both show 4 sticks of 4gb ram installed.

RAM passes memtest. All work separately and in every DIMM slot. 1 Sticks gives 4gb max, 2 gives 8gb, 3 gives 8gb, 4 gives 8gb. No way around it capping at 8GB. I have tried manual timings and resetting bios and updating it.

I am assuming then my memory controller on my i7 has failed somewhat (despite intel diagnostic showing a pass). If so, would 2x8GB ram work in my machine? If the memory controller can no longer run more than 2 sticks. If there's no true evidence of the memory controller failing. I assume there's nothing I can do about it.

Any thoughts on this bug would be appreciated.

PC Specs:
i7 3770k
Asus P8Z77-V
Corsair Vengeance LP RAM.

[flearider]

what os you running ?? xp and some 7's limit mem to 8 gig ..

[kalniel]

what os you running ?? xp and some 7's limit mem to 8 gig ..

How would that affect the BIOS? (before it's loaded the OS)

[smargh]

Check the pins in the CPU socket.

[Legan]

I have had a look and no specific pin stands out as so bent it won't make contact. Im not entirely sure what they normally look like nor great at spotting these things so I grabbed some photos:

http://imgur.com/cQhelJJ
http://imgur.com/lbvcGSh
http://imgur.com/CPtujV1
http://imgur.com/e6DhznK

[MattHibbard]

Update bios??..check ram and slots? To make sure working individually?