ABIT IP35 Pro

[Zedder]

Hey,

 

I currently have TWIN2X2084-6400C4 in my ABIT IP35 Pro, running Vista 64 bit. I just purchased two CM2X2084-6400c4DHX, will they work with the older RAM so I can get 6 GB?

 

Thanks

[DerekT]

I would drop the memory speed to 667Mhz (4-4-4-12) and raise your Northbridge memory controller +.2v to ensure longterm stability with your memory controller.

[Zedder]

Thanks for the response, theram ihave in there is alreadt at 4-4-4-12. With the addition of the new ram i should up the voltage +0.2V ?

[RAM GUY]

With 4 modules I would suggest setting the memory frequency at DDR667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.

[Zedder]

Thanks for the response, it seems it will go smoother if I just replace the old sticks with the new, would buying another 2GB stick and have 3 total be smoother for getting 6BG?

 

Thanks

[DerekT]

You then move to a mixed channel mode and I think you would do better with 2 X 2048MB rather than 3 X 2048.

[Zedder]

I just put in the two sticks of TWIN2X4096-6400C4DHX into my ABIT IP35 Pro running Vista 64 bit. I ran CPU-z and it came up with the following timings and speeds.

 

Timings table

Frequency (MHz) 270 400

CAS# 4.0 5.0

RAS# to CAS# delay 4 5

RAS# Precharge 4 5

TRAS 13 18

TRC 16 23

 

EPP profile 1 (full)

Voltage level 2.100 Volts

Address Command Rate 2T

Cycle time 2.500 ns (400.0 MHz)

tCL 4.0 clocks

tRCD 4 clocks (10.00 ns)

tRP 4 clocks (10.00 ns)

tRAS 12 clocks (30.00 ns)

tRC 22 clocks (55.00 ns)

tWR 8 clocks (20.00 ns)

 

My question is why are they running at different speeds and voltages, how or should I try to even them out to both be at 400 mhz? Thanks for any help.

[Wired]

Read the MEMORY tab, not the SPD tab.