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New PC only runs with 2gb ram... not more


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Hello guys,


I am not a hi-tech nerd, but I am learning. So be gentle :laughing:


I have just assembled my new gaming PC with a friend and we ran into a problem with the 8gb ram we wanted to install. It seems that the PC will only work with 1 ram stick, because as soon as we put a second stick in, it stops at "checking ram" in the start up fase.


So now the PC is running with only 2gb ram and I would really like to have my full 8gb. Help me please!

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Download Memtest86+ V2.01 from--->

Download CPU-z from


Insert a single stick of DRAM in the first blue slot (Closest to the CPU).


Extreme Tweaker 

Ai Overclock Tuner : Manual 

CPU Multiplier = 8.5
FSB = 333
FSB Strap to NB = 333
PCIE = 100

DRAM = DDR3-1333
Command Rate = 2T
Primary Timings =  9 - 9 - 9 - 24
Secondary = 5 - 66 - 9 - 6
Set other Advanced Timings to Auto

DRAM Static Read Control = Disabled
DRAM Dynamic Write Control = Disabled
AI Clock Twister  = Auto
AI Skew for Channel A = Auto
AI Skew for Channel B = Auto
AI Transaction Booster = Auto


CPU = Auto
CPU PLL = 1.55v
NB = 1.55v
DRAM = 1.7v
FSB Termination = 1.30v
SB = Auto
SB 1.5  = Auto
Loadline Calibration  = Disabled
CPU GTL REF = 0.63x
NB GTL REF = 0.67x
DDR3 Channel A REF = Auto
DDR3 Channel B REF = Auto
DDR3 Controller = REF DDR3 REF

CPU spread spectrum = Disabled
PCIE spread spectrum = Disabled


Shut the system down. Boot to the Memtest CD and allow for two full passes. If you pass, then shut the system down and insert the same stick in the second (White) slot. Retest. Rpeat until you have tested all slots with the same stick. Now you have passed one stick and all slots. Now remove the first stick and insert the second stick in the first blue slot. Retest. Repeat with the remaining two sticks. Now you have passed all four sticks.


Insert one stick in each blue slot and restest. If you pass, then remove those two stick and insert the second set in each white slot and retest. Finally, insert one set in the blue slots and one set in the white slots and retest.



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