Memory divider question

U

UTGamer

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Jun 1, 2002

• Jun 7, 2002

• #1

I have a P4 1.6a with an Asus P4S533 and 512 of Mushkin DDR PC2700 ram, if I up my fsb to 133mhz what is the proper divider or closest to it to run the ram at spec which is 333mhz I think, I know the pci bus divider will be 1/4.

 

Bender

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• Jun 7, 2002

• #2

Welcome to the forums UTGamer!

4:3 is the closest to spec you can get. If you can run your ram at a higher speed go for it. You can also adjust mem timings to speed things up.

 

OP

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UTGamer

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Jun 1, 2002

• Jun 7, 2002

• Thread Starter
• #3

Thanks for the response, would 4:3 be under or over spec and I unfortunately have no idea how to adjust mem timings.

 

Placid

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Mar 13, 2001

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Connecticut

• Jun 8, 2002

• #4

Bender isn't 4:5 +33 memory? So cpu at 133 memory at 166.
You do it in the bios look for cpu/memory ratio.
Should be choices like 4:3, 1:1, 4:5, 4:6.

Here is my understanding of these with a cpu at a 133fsb.

divider-cpu-memory
4:3-133-100
1:1-133-133
4:5-133-166
4:6-133-199

 

Last edited: Jun 8, 2002

M

mjones73

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Mar 15, 2002

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• Jun 8, 2002

• #5

UTGamer, keep in mind that when the memory is at 333, it's actually only at 166.5 on the memory bus. DDR speeds are the memory bus X2. The 5:4 multiplier should get you there, check the memory settings and advanced settings main page in the bios for the memory multiplier.