GIGABYTE GA-X58A-UD7 Problem with DDRIII OCZ

[papa13]

Hello guys..... I'm from Greece and I have an issue with my M/B

My PC:

CPU Intel i7 930
M/B Gigabyte GA-X58A-UD7 with BIOS F6
RAM 6GB OCZ Blade 2133 DDR3 (OCZ3B2133C9LV6GK) 3x2GB (DDR3_1 + DDR3_3 + DDR3_5)
Ge-Force 7950 GX2
HDD 150GB WD Raptor 10000RPM (boot)
HDD 400GB WD (data)
PSU Corsair CMPSU-850HXEU PSU (850W)

Here's the issue....

When I start my PC BIOS sees 2GB of RAM. I entered BIOS to change RAM voltage from default 1.50V to 1.64V. After that it can see 6GB of my RAM at 1066MHz. Next day I start my PC again and it sees AGAIN 2GB of RAM... I enter again to BIOS and sees only DDR3_3 slot. After NOT changing anything at BIOS, I save and exit BIOS and it sees 6GB of RAM.

It's my 2nd M/B. My 1st changed because it was broken from factory....


Thanx in advance guys..............

ps: no overclocking yet....

[Badbonji]

Sounds like very weird behaviour. Can you run memtest on each stick individually to test that the memory is not the problem? You could also update the MB Bios...