I have been running 2x2GB of Corsair Dominator 1600 dual channel sticks on a ASUS P8P67 motherboard.
Was intending on buying the same again, so I could run all four sticks on the mobo. instead I accidentally ordered the 2x4GB Corsair Dominator 1600 kit.
I swapped the current 2x2GB with the two new 2x4GB (black slots on mobo). This appears fine in BIOS and in System (running Windows 8).
I then put the 2x2GB sticks back into the blue slots on the mobo.
BIOS still only registers 8GB, and so does System.
However, CPU-Z is reporting the expected 12GB.
Whats the deal here? Is there an approach to troubleshoot, or is it that even though the kits are same speed/brand, they wont work in conjunction.
The answer I am looking for is either a workaround for my machine to support (and use) the current configuration of 2x2GB + 2x4GB, or for the answer to be that it is not possible.
Let me know if you need me to include more info via the comments.
The P8P67 has a limit of 32 GB (i.e. 4x8 GB DIMMs) as per specs on Asus website. – Pincopallino
The manual on 2-6 says "You can install 1GB 2GB and 4GB.." no mention of 8GB in that line. But in smaller writing on that page it says "According to Intel Spec, The max. 32GB memory capacity can be supported with DIMMS of 8GB (or above)". and on Page x it "repeats" that line about Intel stating 32GB is supported.