So here's the problem: I've got this Asus p7p55-m motherboard that was originally purchased with 4Gs of memory and it all worked well until I wanted to drop extra memory in it (KVR1333D3N9K2 model). So I purchased another 4G of the same memory and bios will show 4g of usable memory and Win7 (x64) will show 8G installed (4G usable). Perhaps, someone can suggest something on this eh?
Initially the memory was located in A1 and B1 slots:
A1 A2 B1 B2
so I added the extra ones into A2 and B2 respectively and then tried swapping everything the was that old memory was sitting in A1 and A2 and new ones in B1 and B2 neither seemed to work out.
Here are a few screenshots in case this may be helpful.
Thanks all for any advises.