ASUS P5G41t-M SI not working with all 4 slots filled

naarsil

Reputable
Jul 21, 2015
3
0
4,510
Processor: Pentium Dual Core E6600 3.06 GHz
Motherboard: ASUS P5G41t-M SI
64 bit operating system, Windows 10

Here's my problem. Up until today, I've had 2x2gb kingston 1066 RAM. I bought Gskill 2x2gb 1333 RAM. When I put all 4 modules in, the computer won't boot up, screen stays black. When I put 3 modules, it's working. No matter the combination, 4 modules won't work. As I know, my Motherboard can support up to 8GB ram. So. If you can help me, it would be awesome. Thank you.

Some additional info, about how I got the modules in;
I'll refer to Kingston as "K" and to Gskill as "G"
DIMM - A1 - G/K
DIMM - A2 - G/K
DIMM - B1 - K/G
DIMM - B2 - -
WORKING
---------------------
DIMM - A1 - G/K
DIMM - A2 - G/K
DIMM - B1 - K/G
DIMM - B2 - K/G
NOT WORKING
---------------------
DIMM - A1 - G/K
DIMM - A2 - G/K
DIMM - B1 -
DIMM - B2 - K/G
WORKING
------------------------
tried using single module in every slot, each time worked, so it's not slot problem