asus sabertooth p67 i7-2600k with g.skill ripjaws kits, RAM issue

[VB3]

Hello!

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)

Intel i7-2600k?

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.

[AlHill]

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.

Doc

[VB3]

Dunno, memory controller is into processor

[AlHill]

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.

Doc