KX133/KT133 Memory Tweak

w9design

Golden Member
Mar 1, 2000
1,083
0
0
#1
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

Golden Member
Mar 1, 2000
1,083
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#2
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

Junior Member
Dec 20, 2000
6
0
0
#3
Hey, what program allows you to do that??
 

SilverBack

Golden Member
Oct 10, 1999
1,622
0
0
#5
Which PCR Files are you using when you load WPCREDIT?
 

w9design

Golden Member
Mar 1, 2000
1,083
0
0
#6
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

Golden Member
Oct 10, 1999
1,622
0
0
#7
Well it's easier to see what's going on with the PCR, I'll give it a try...
 

Subversal

Senior member
Aug 22, 2000
617
0
0
#8
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 :)
 

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