Athlon XP unlocking issues...

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
Hi all,

I recently unlocked my XP1900+ only to have a few multipliers available (11,11.5,5,5.5). I used nail polish remover then tried again, and the same thing happened. I'm using the superglue/silver trace paint method. Should I maybe try updating my bios? I'm running an Abit KX7-333 with the default bios. Any help would really be appreciated...I want to figure this out once and for all.
 

johncar

Senior member
Jul 18, 2000
523
0
0
Originally posted by: SickBeast

I recently unlocked my XP1900+ only to have a few multipliers available (11,11.5,5,5.5). I used nail polish remover then tried again, and the same thing happened. I'm using the superglue/silver trace paint method. Should I maybe try updating my bios? I'm running an Abit KX7-333 with the default bios. Any help would really be appreciated...I want to figure this out once and for all.

"Unexpected Multipliers" after an L1 closing operation are usually caused by grounding some L1s or leaving some still "open". Directly grounded circuits are set LO and CANNOT be reset HI, while open L1s prevent bios from changing the default setting, HI or LO. But easily debugged with wide range of "I set vs I get" data, as you have supplied...and knowledge of Multiplier Code, which all should learn.

There are 5 signal circuits with .5X, 1X, 2X, 4X, 8X Bit Values/BVs which are Enabled when circuits are set/reset HI. The L1s are in these circuits, .5X = leftmost, then L to R to 8X = rightmost

1900 = 12X default with ONLY 1X BV signal circuit HI, other 4 all LO.

So the data says the .5X and 2X signal circuits' L1s, 1st and 3rd, are closed OK cause bios can toggle the .5X and 2X BV circuits, since default LO 2X needs to be HI for 5X and 5.5X.

But the default LO 4th, 4X L1, is either grounded OR still open, and the default HI 2nd, 1X L1, has probably been grounded...both unable to be changed from their current LOs, cause each and both need to be HI (at different times) for 6X, 7X, 8X, 9X, 10X, and 12X..none of which you say you can get,/bios can't toggle HI from "current" LOs.

So redo the 2nd and 4th L1s being sure that old conductive material does not contact either upper or lower L1 "dots". And be sure there is no film on dots either. 8X L1 status is uncertain/no data which needs it to be HI.

http://www.beachlink.com/candjac/index.htm link to Multiplier Code, Circuits, Palomino articles to "understand" Code and bridges vs BVs. Then you can debug on your own, it's not rocket science.
John C.



 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
wow, thank you very much man, i'm going to try it right now.

:)

woohoo overclocking action baby yeah *knock on wood*...
 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
damn...now all i have is the 11 and 11.5 multipliers...so what does this mean?

i think i'm going to get some nail polish remover and a toothbrush and scrub everything out of there. then i'll use whiteout instead of glue, that way i can remove it more easily.
 

Wind

Diamond Member
Jul 22, 2001
3,034
0
0
Originally posted by: SickBeast
damn...now all i have is the 11 and 11.5 multipliers...so what does this mean?

Still...a shoddy unlocking job...try again.

;)
 

Mangler

Senior member
Jun 10, 2002
633
0
0
yup, scrape it all off and start over...

I prefer a crayon in the pits and then the fogger kit to connect them.

Good Luck
 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
I'm having alot of trouble getting the glue out of the pits...is it dangerous for me to scrub then with nail polish remover and a toothbrush? i'm worried about fluid seeping into the core of the cpu...
 

johncar

Senior member
Jul 18, 2000
523
0
0
Originally posted by: SickBeast
damn...now all i have is the 11 and 11.5 multipliers...so what does this mean?

i think i'm going to get some nail polish remover and a toothbrush and scrub everything out of there. then i'll use whiteout instead of glue, that way i can remove it more easily.

It means the 3rd L1, 2X BV circuit, has probably been grounded as well as the other 2. Suggest try acetone to dissolve stuff in pits, but be careful how you apply. Don't "flood" the surface, use q-tips?? Check visually with magnification.

Do you understand the Multiplier Code yet??
John C.

 

boggsie

Platinum Member
Mar 31, 2000
2,326
1
81
Originally posted by: johncar
Originally posted by: SickBeast
damn...now all i have is the 11 and 11.5 multipliers...so what does this mean?

i think i'm going to get some nail polish remover and a toothbrush and scrub everything out of there. then i'll use whiteout instead of glue, that way i can remove it more easily.

It means the 3rd L1, 2X BV circuit, has probably been grounded as well as the other 2. Suggest try acetone to dissolve stuff in pits, but be careful how you apply. Don't "flood" the surface, use q-tips?? Check visually with magnification.

Do you understand the Multiplier Code yet??
John C.

So, it appears that the Palamino bridges are different than the Thunderbird/Duron bridges. Are the Thoroughbred bridges the same as the Palamino bridges?

Ack - this may be much more difficult than I anticipated. My MPX motherboard does not support multiplier adjustment, so I wanted to mod the bridges to change from 11x [1700+] to 12.5x, but that appears to require cutting of existing bridges, which ... I just have to laugh ... hahahahaha
 

boggsie

Platinum Member
Mar 31, 2000
2,326
1
81
I have brain ache, but I think that I've got it figured out ... plus, the newer cpu packaging is much easier to cut than the old ceramic processors.

woot
 

johncar

Senior member
Jul 18, 2000
523
0
0
Multiplier bridges on Duron/Tbird, Palomino and Tbred are all different from each other...but the "Multiplier Code" is "exactly the same".
Ref the beachlink.com link and articles in one of our posts above.
John C.