Does anybody have same set as I have:
asus sabertooth p67
G Skill Ripjaws F3-12800CL7-2GBRM (2x2GB)
G Skill Ripjaws F3-10666CL7-4GBRH (2x4GB)
The problem is that mb sees only 8GB of RAM when all sticks are installed. Whatever I did, i couldnt get 12GB. I see 8GB of ram In bios, but also I can see all sticks installed, can read infrormation about every slot: timings, voltage etc. I have tried all things I can do: software: changing bios options for 100500 times, voltages, timings, enabling-disabling various stuff etc; hardware - placed every stick in every slot, combined them in all possible ways, cleaned connectors, slots, checked cpu pins for bent, changed cmos battery, tryied another pairs of ram - got previous 8GB max, but my ram works perfectly on other machines.
I have this problem for years now, tried many times to fix it, but without success. Its not very critical to me, because I still have 8GB ram and its more or less enought for me, but anyway i want to know wtf can be reason for this problem.
This is not an Intel issue. You should be asking Asus for support.
Also, depending on your OS, your Sandy Bridge processor is no longer supported.
Then replace the processor.
You can also run https://www.intel.com/content/www/us/en/support/articles/000005567/processors.html The Intel® Processor Diagnostic Tool
Still, you should be seeking assistance from ASUS regarding their motherboard and its supported memory.