Gigabyte Motherboard RAM not enabled

[akruet227]

I have a Gigabyte F2A-A88XN-WIFI with 8gb of memory installed. When I open the BIOS, it shows only 4GB installed. The first thing that came to mind was a dead stick. I then put in a different 8GB kit that I knew worked from another PC and it was still showing 4GB. I opened MIT Current Status and it shows both dimms installed, but only one enabled. Imgur: http://imgur.com/teebK3I Is there any way this can be fixed?

 

[akruet227]

Tried clearing the CMOS, but still found no solution to the problem

 

[pperini]

I have a Gigabyte F2A-A88XN-WIFI with 8gb of memory installed. When I open the BIOS, it shows only 4GB installed. The first thing that came to mind was a dead stick. I then put in a different 8GB kit that I knew worked from another PC and it was still showing 4GB. I opened MIT Current Status and it shows both dimms installed, but only one enabled. Imgur: http://imgur.com/teebK3I Is there any way this can be fixed?

I, too have the same problem with the same board but using 2 8Gb G.SKILL Trident X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2400 (PC3 19200)
Desktop Memory Model F3-2400C10D-16GTX

I have had issues with this board, an a10-7800 apu (running with the 45W TDP switch set) and noctua cooler and thought their latest F5 BIOS resolved them them. I'll be re-seating some DIMMs because in the past I have had all 16Gb enabled.

Working with a mini-itx clearances can be tight but I ran across the Scythe SCKDT-1000 Low Profile Cooler.


Let me know what you've found

 

[pperini]

Indeed, reseating the memory resolved the problem for me. The BIOS now reports 16Gb installed and enabled. CPU-Z reports dual-channeled mode in play. Why the BIOS reports on 4 slots when the board only has TWO is puzzling. When the memory is not fully enabled, Windows (as well as system info tools like SIV and HWinfo) report 16Gb "available". The GPU defaults to a 1Gb reservation but Windows indicates 6.96Gb enabled. Other reports indicate 9Gb. Resource monitor has 8Gb "hardware reserved". Some rather odd but interesting results.

The system (windows 8.1) seemed to work well unless taxed when it might crash probably because I'd turned off the pagefile (using 2 SSDs for HTPC toy). But at least it would boot reliably after replacing the CPU cooler

I'd avoid Noctua coolers for Gigabyte boards. Apparently, the Austrians, though aware of problems with these boards (mentioned in their support area re: other gigabyte boards), are sticking to their guns on PWM electrical specs and the 2 don't play well together.