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MSI Kt3 Ultra2 Can't set up


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My K7n2 Delta died so I built a Kt3 ultra2 that I had hanging around. I have 2 sticks of VS512MB400 that I can't get to work together. It is overclocked w/FSB @166 and I can get 1 stick to work sorta.

Here's the Bios choices for the ram settings:

SDram Frequency (spd, hclk, hclk+33, hclk+66).

SDram CAS 2 or 3.

Row precharge Time, 2T or 3T.

RAS Pulse Width, 6T or 5T.

RAS To CAS Delay, 3T or 2T

SDram Bank Interleave, Disabled (if 16MB is installed), 2-Way or 4-Way.

SDram Burst Lenght, 4QW or 8QW

SDram 1T Command, "Enable" for 1T, "Disable" for 2T.

Fast Command,

"Ultra" allows CPU to handle data/instructions at the fastest speed.

"Fast" allows CPU to handle data/instructions at the faster speed.

"Normal" allows CPU to handle data/instructions at the slowest rate.

(Ram set at 2.7v)

thanks Rick

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These would be the suggested setting for these modules, I am sorry I dont have a cross for that MB so I would suggest asking the MB maker if they can help you set these settings.

Memory Frequency: 100%

Dim Voltage to 2.7 Volts

Resulting Frequency: 166MHz

Memory Timings: Manual/User Define

SDRAM CAS Latency: 2.5T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 3T

SDRAM Active to Precharge Delay (tRAS): 7T

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  • 3 months later...

First sorry for my poor english

 

I have the same problem with two VS512MB400 modules on the same motherboard

 

with one module it works perfectly with agressive timings

with two module, set on spbd, no overclocking(FSB 133), the computer doesn't boot on the morning. It hangs during post, or post screen doesnt appear. I have each time to do a hard reset, and then it's ok.

If i stop the computer for one or two hours, i dont have this problem.

Each module have been tested extensively with memtest86+ without errors.

It seems like if the memory doesn't have enough current to work.

 

Now i've set memory frequency on 133 MHz instead 166, and i will see tomorrrow morning what's going on.

 

Any ideas ?

 

Thanks

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With two modules they should be in slots 1-3 or 2-3 and set the memory frequency at 1-1 or 133 Mhz in sync with your CPU and set the memory Voltage to 2.7 Volts and set the timings manually to Cas 2.5-3-3-7!
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