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Bios settings for 3 gigs of 3500LLPRO


shazbot

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hello I have a8n sli pemium and 3 gigs of 3500LLPRO, what settings should I set in the bios (3 sticks)

 

would you be as kind as to also state the Cas, Ras etc as it is rather confusing

 

and also what memclock setting I should use

 

many thanks

 

edit

Found this and tried it, but meme test gives me red straight away, do I need to change anything for 3 gigs ?

 

Testing parameters for TWINX3500LLPro:

TWINX2048-3500LLPro Data Sheet

Motherboard make and model: Asus A8N-SLI Premium

Each pair is tested and packaged together using the following settings:

CPU External Frequency: Manually set to 217MHz

DRAM Clock: Manually set to 1:1 or 400MHz

SDRAM CAS Latency: 2.0T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 2T

SDRAM Active to Precharge Delay (tRAS): 6T

SDRAM Bank Interleave: 4 Bank

SDRAM VDIMM: 2.75

Command Rate 1T

All other settings are motherboard defaults.

Maximum recommended VDIMM: 2.9

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CPU External Frequency: Manually set to 217MHz

DRAM Clock: Manually set to 1:1 or 400MHz

SDRAM CAS Latency: 3T

SDRAM RAS to CAS Delay (tRCD): 4T

SDRAM Row Precharge (tRP): 4T

SDRAM Active to Precharge Delay (tRAS): 8T

SDRAM Bank Interleave: 8 Bank

SDRAM VDIMM: 2.75

Command Rate 2T

Test for stability. If stable, test for:

 

SDRAM CAS Latency: 2.5T

SDRAM RAS to CAS Delay (tRCD): 4T

SDRAM Row Precharge (tRP): 4T

SDRAM Active to Precharge Delay (tRAS): 8T

 

seen as 2.5-4-4-8

 

If stable, test for 2.5-4-4-7. Then 2.5-3-3-7. With all four banks being populated, you need to set your Command Rate to 2T.

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Most socket 939 MOBOs do not like to run 3 DIMMs at all. They are stable with 1,2, or 4 DIMMs but not 3.

 

I agree with this. Are you running 3 X 1GB or 2 X 2GB plus 2 X 512MB? I didn't even think that you might be populating three slots. That would be a tough one indeed.

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