KX133/KT133 Memory Tweak

[w9design]

Thanks to overclockers.com, I started playing with WPCREDIT on my MSI K7T Pro2A motherboard.
Before tweaking, my Sandra memory score was 402/492 for PC133 CAS2.
Here's a list of offsets and what to set them to:
These settings require double-sided DIMMs.
Bank 0/1 corresponds to DIMM slot 1. (Offset 64)
Bank 2/3 corresponds to DIMM slot 2. (Offset 65)
Bank 4/5 corresponds to DIMM slot 3. (Offset 66)
Bank 6/7 corresponds to DIMM slot 4 (if it exists) (Offset 67)

Here are Hex and Bin values for any of these offsets:

CAS 2-2-2-5 with 4-way Interleave (BEST setting).
Hex 12 or Bin 00010010.

CAS 2-2-2-5 w/ 2-way Interleave:
Hex 11 or Bin 00010001.

CAS 3-2-2-5 w/ 4-way:
Hex 22 or Bin 00100010.

CAS 3-2-2-5 w/ 2-way:
Hex 21 or Bin 00100001.

CAS 2-2-2-6 4-way:
Hex 52 or Bin 01010010.

CAS 2-2-2-6 2-way:
Hex 51 or Bin 01010001.

CAS 3-2-2-6 4-way:
Hex 62 or Bin 01100010.

3-2-2-6 2-way:
Hex 61 or Bin 01100001.

To disable interleave, change the last two Bin digits to 00.

By setting my memory to 2-2-2-5 4-way, my RAM scores went from 402/492 to 455/553.

Hope this helps some people.

Nate

 

[w9design]

More Sandra Results:
@ 111MHz Bus (Unstable )
Before: 423/485
After: 499/611!

@ 109MHz Bus (Seems stable ... knock on wood)
Before: 419/485
After: 485/599


Nate

 

[PythonMan]

Hey, what program allows you to do that??

 

[w9design]

WPCREDIT to test and WPCRSET to commit changes.
See www.overclockers.com for more info.

 

[SilverBack]

Which PCR Files are you using when you load WPCREDIT?

 

[w9design]

I'm using the KX133 PCR from H.Oda's website, but you don't need the PCR if you're just changing the offsets listed... You only need the PCR for descriptions of each offset.

 

[SilverBack]

Well it's easier to see what's going on with the PCR, I'll give it a try...

 

[Subversal]

Great! Got my PC100 at 137 and recieving 451/552 in Sandra now with it set at 00010110. Act to Com change from 3 to 2 won't work so HEX16 is the best I can get. Not bad though