I have a Gigabyte X79-UD5 with 4 x 8 GB ram memory. Total memory is 32 GB supporting 1866 but running on 1333 by default BIOS settings. Bios is updated to F12 version but didn't helped.
The problem is I get random BSOD's if I use 1866 or 1666 memory modules. If I use 1333 there is no problem but they are normal A-data(no additional heatsink) which are too cheap for this server computer and I need to make it work at 1666/1866.
The memory which makes BSOD's is from the manufacturer Geil Value Plus running at 1666 and another Geil running at 1866 but not Value Plus some other model with orange/yellow heatsink.
One guy said the memory timings must be manually set to whatever are typed on the memory and the voltage must be manually set to 1.5 Volts but this doesn't help on both memory types 1866/1666. The BSOD's happen even when trying to install Windows 7 and are not AHCI related. They are 100% connected to memory/cpu/settings/motherboard somehow.
Could it be that this motherboard is not compatible with these Geil memory modules? Also Memtest86 latest version doesn't give errors at all. http://download.gigabyte.eu/FileList...ga-x79-ud5.pdf
It seems this memory isn't even compatible with the motherboard... But I am still open to suggestions.