OK, I'm feeling suicidal ... what's the best way to CUT BRIDGES on an AXP?

Jan 31, 2002
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That's right. Cut bridges.

I'm feeling dangerous. I'm armed with a multimeter, conductive paste, and nothing to lose - and I'm about to assault a Palomino XP2100.

If I kill it, I'm buying a Thoroughbred-B. If it lives ... well, then I rule.

(Yes, I am crazy.)

- M4H
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
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I'm about to do this on my new 1700+ JIUHB to get above 12.5 multi's

DAMN those things are small!

Any tips?
 
Jan 31, 2002
40,819
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Why would you want above 12.5 on your 1700? Shouldn't you be pushing the bus speeds instead of the multiplier?

My idea was to take something along the lines of a dull edge and gently "file" a gap in the bridge. Emphasis on "gently". The guys over at PCStats used a Dremel 270, but I'm not that ballsey.

- M4H
 

BigJ

Lifer
Nov 18, 2001
21,330
1
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Originally posted by: MercenaryForHire
Why would you want above 12.5 on your 1700? Shouldn't you be pushing the bus speeds instead of the multiplier?

My idea was to take something along the lines of a dull edge and gently "file" a gap in the bridge. Emphasis on "gently". The guys over at PCStats used a Dremel 270, but I'm not that ballsey.

- M4H

He may not have the ram to take him up past 180, 180x12.5 = 2.250ghz, and he might try for say 13.5x180 at 2.43ghz.
 
Jan 31, 2002
40,819
2
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Originally posted by: BigJ2078
Originally posted by: MercenaryForHire
Why would you want above 12.5 on your 1700? Shouldn't you be pushing the bus speeds instead of the multiplier?

My idea was to take something along the lines of a dull edge and gently "file" a gap in the bridge. Emphasis on "gently". The guys over at PCStats used a Dremel 270, but I'm not that ballsey.

- M4H

He may not have the ram to take him up past 180, 180x12.5 = 2.250ghz, and he might try for say 13.5x180 at 2.43ghz.

Touché. :p

- M4H
 

PliotronX

Diamond Member
Oct 17, 1999
8,883
107
106
Take a fresh 9V battery, wrap a wire's end to each of the terminals, and connect the other ends of the wires to needles and then use a magnifying glass and/or lots of light to touch each needlepoint to the "pads" of the bridge to blow it. Easiest and cleanest way I know of :)
 
Jan 31, 2002
40,819
2
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Originally posted by: PliotronX
Take a fresh 9V battery, wrap a wire's end to each of the terminals, and connect the other ends of the wires to needles and then use a magnifying glass and/or lots of light to touch each needlepoint to the "pads" of the bridge to blow it. Easiest and cleanest way I know of :)

I call shenanigans on that one. :p Edit - I lose :eek:

/me goes to test it on a dead XP1700+ :D

- M4H
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
Originally posted by: MercenaryForHire
Why would you want above 12.5 on your 1700? Shouldn't you be pushing the bus speeds instead of the multiplier?

My idea was to take something along the lines of a dull edge and gently "file" a gap in the bridge. Emphasis on "gently". The guys over at PCStats used a Dremel 270, but I'm not that ballsey.

- M4H

Got a KG7, 760 Chipset. It'll max out at about 155Mhz and has only a divider max of 4.
 

johncar

Senior member
Jul 18, 2000
523
0
0
Originally posted by: MercenaryForHire
That's right. Cut bridges.

I'm feeling dangerous. I'm armed with a multimeter, conductive paste, and nothing to lose - and I'm about to assault a Palomino XP2100.

- M4H

Safest way is to gradually "wear away" material with frequent visual and/or multimeter resistance checks. Eye loupe/ other magnification helps.
Best tool for above is the finest pointed diamond coated rotary burr you can get your dentist to give you. Then epoxy into suitable tube and use like a surgical instrument or pencil with fingers motion only, heel of hand held steady on bench.
Diamond coated only essential for ceramic body Durons/Tbirds, any good abrasive coating OK for Palomino/Tbreds. But extremely fine point essential to avoid obliterating whole bridges.
Try Hardware/hobby shops if dentist is cheap.
John C.

 

zsouthboy

Platinum Member
Aug 14, 2001
2,264
0
0
I used an X-acto knife on my 1600, no magnifying glass or anything... just "cut" between where the bridge is buried, and go deep enough until you see a goldish color.
 

ChampionAtTufshop

Platinum Member
Nov 15, 2002
2,667
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i cut THREE bridges on my xp1700+ tbred b to get higher mults for my a7v which maxxes out around 105fsb lol

what i did:
take a razor blade ( you konw, the flat shaving ones) and take a nice clean corner and wear away at the green/brown stuff in between the two golden dots

the first "slice" is most important as subsequent slices will just follow in the same spot, so make sure you do the first (or first couple) nicely

make sure not to cut any other bridges by slipping or whatever

cut down about 2 mm or so and you are done
 

zephyrprime

Diamond Member
Feb 18, 2001
7,512
2
81
He may not have the ram to take him up past 180, 180x12.5 = 2.250ghz, and he might try for say 13.5x180 at 2.43ghz.
He may also not have the MB to do it. My MB can't go above 150 because I don't have the right dividers and I think my radeon 9500 is holding me back.

Best way is with a 9 volt battery.
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
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Originally posted by: zephyrprime
He may not have the ram to take him up past 180, 180x12.5 = 2.250ghz, and he might try for say 13.5x180 at 2.43ghz.
He may also not have the MB to do it. My MB can't go above 150 because I don't have the right dividers and I think my radeon 9500 is holding me back.

Best way is with a 9 volt battery.

Is that 9V thing for real? I'm worried about buzzing the whole thing with 9v.
 

Metalloid

Diamond Member
Jan 18, 2002
3,064
0
0
Originally posted by: PliotronX
Take a fresh 9V battery, wrap a wire's end to each of the terminals, and connect the other ends of the wires to needles and then use a magnifying glass and/or lots of light to touch each needlepoint to the "pads" of the bridge to blow it. Easiest and cleanest way I know of :)

This is the absolute best way to do it. It is easier and safer, and I just love the cool little spark that it makes when you pop the bridge!!! I did a few of my L3 and L4 bridges this way when I hard modded my 1900+, and it was so much easier than cutting would have been.
 

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
Originally posted by: Metalloid15
Originally posted by: PliotronX
Take a fresh 9V battery, wrap a wire's end to each of the terminals, and connect the other ends of the wires to needles and then use a magnifying glass and/or lots of light to touch each needlepoint to the "pads" of the bridge to blow it. Easiest and cleanest way I know of :)

This is the absolute best way to do it. It is easier and safer, and I just love the cool little spark that it makes when you pop the bridge!!! I did a few of my L3 and L4 bridges this way when I hard modded my 1900+, and it was so much easier than cutting would have been.


What mult did you hardwire? I was thinking about 16 for my JIUHB0308.
 

zephyrprime

Diamond Member
Feb 18, 2001
7,512
2
81
Is that 9V thing for real? I'm worried about buzzing the whole thing with 9v.
It's for real. I've done it. It's the best way. I also recommend having some sort of cunductive pen so you can reverse the operation if you desire. I've done that too. It works well.