Unlocking an XP 2100+

dkozloski

Diamond Member
Oct 9, 1999
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What am I missing here? I have tried to unlock both a brown and a green XP 2100+ with the defogger repair kit method after plugging the laser holes with super glue and neither will boot at any multiplier setting or FSB in other than the default ratio. This is with an MSI KT3 Ultra motherboard. I have cleared the CMOS memory a dozen times but both processors are stone dead except at default ratio. I have checked for shorts and continuity with a multimeter and can find no fault with my work. I noticed that the CMOS doesn't even offer the correct fixed setting X13 but it does have an AUTO setting. Maybe I'll have to wait until the XP 2200+ BIOS comes out for that board.
 

Richardito

Golden Member
Feb 24, 2001
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Maybe just start over again and see if it works the second time around. Clean your work with Acetone and re-do the glue and bridges. After you're done remember to protect them either with clear nail polish or a piece of tape.
 

dkozloski

Diamond Member
Oct 9, 1999
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I have already done each one several times, very carefully. I masked the bridges and applied a little super glue to the laser cuts. I then carefully masked between the bridges and the adjoining topography and applied the conducting fluid. Next I checked between each bridge for shorts and to ground for shorts. Each conducting path reads about 300ohms to ground which is as it should. Has anyone else unlocked an XP 2100+ and made it work. Because the list of ratios in the BIOS setup doesn't include the right ones for either 2100's or 2200's that might be the problem. The ratio for 2100 is X13 and the choice is a cryptic 12.5/13 combo. The correct choice for a 2200 is X13.5 but the closest choice is 14 so I suspect I am somewhere out in front of the available KT3 Ulta BIOS's. If I do an FSB overclock the BIOS never reports an XP 2200+ but rather a 1900 Mhz processor. This indicates the BIOS look-up table has yet to be modified for 2200 so maybe the rest hasn't either.
 

Richardito

Golden Member
Feb 24, 2001
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If you don't have a BIOS that supports the XP you will get weird multiplier/FSB readings when the computer boots up. Disregard them, they are erroneous and that's the reason you need a BIOS revision. When you check using CPUID or a similar program you should see your correct settings. You do not mention using a razor blade to even the plane (take excess glue off) and make sure the bridge spots aren't insulated by the glue... ;) If the paint isn't contacting one of the spots it could check out OK, using the voltmeter, when in fact the pin is insulated under the glue.
 

dkozloski

Diamond Member
Oct 9, 1999
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I used an X-Acto knife to gently scrape the super glue level with the chip and I cleaned the contact points using a jeweler's loupe and a dental pick.
 

dkozloski

Diamond Member
Oct 9, 1999
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If you don't know why overclockers overclock you must be adrift in the wrong forum.
 

IndyJaws

Golden Member
Nov 24, 2000
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<< If you don't know why overclockers overclock you must be adrift in the wrong forum. >>



LOL :) Agreed.

I thought the 2100+ was not unlockable by conventional means.
 

Jman13

Senior member
Apr 9, 2001
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I've never done it, but from what I've read, there's a second set of bridges that control multipliers above 12.5. You'll probably need to alter these too...but I'm not sure which they are, and what you need to do.

Jman
 

dkozloski

Diamond Member
Oct 9, 1999
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Jman13, I think you have hit the nail on the head. I guess I'll have to wait until the mystery is solved.
 

akahai

Golden Member
Aug 24, 2001
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From what I understand, the xp2100's multiplyer was set at 13 and was locked internally...which means you can't really change it even if you connect the L1 bridge....however there is another way of unlocking it which is on the L5 bridges....to unlock the xp2100 you first have to change the connection on the L5 bridge(you can take a look at other xp processor's L5 bridges and change it accordingly), by doing this you lower the multiplyer setting, and then unlock the L1 bridge to allow you adjust the multiplyer.....and play with the FSB....if you didn't change the L5 connection on the xp2100 then you can only play with the FSB......the trouble is that to change the L5 connection it might require you to cut some of the bridges, which is not as easy as connecting them......I am sure if you look around the internet, you can find some review on how to get it done.......