my barton wont do 183fsb!

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cow123

Senior member
Apr 6, 2003
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i have a barton 2500+ 0325 VPMW, anyway i can do frequencies such as 2.1ghz just fine with 166fsb, but when i change the fsb to say 183 or higher resulting in the same frequency, it randomly locks up in games.

i remember hearing about a mod you have to do to bartons be able to obtain high fsbs, could anyone shed some light on this?
 
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stevejst

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May 12, 2002
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i remember hearing about a mod you have to do to bartons be able to obtain high fsbs, could anyone shed some light on this?
Click to expand...
That is a third bridge connection you have to do on L12. That woould make your Barton as 266 T'bred so if you can overclock T'breds over 183 you would be able to do that for your Barton. Again connect third bridge on L12.
 
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BigJ

Lifer
Nov 18, 2001
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Could be your motherboard, if its an older revision you may be limited by the stepping.
 
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Dustswirl

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May 30, 2002
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If you can post your system's specs then the guys could give you the best advices round the web ;)

 
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MatthewF01

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Mar 1, 2002
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Originally posted by: stevejst
i remember hearing about a mod you have to do to bartons be able to obtain high fsbs, could anyone shed some light on this?
Click to expand...
That is a third bridge connection you have to do on L12. That woould make your Barton as 266 T'bred so if you can overclock T'breds over 183 you would be able to do that for your Barton. Again connect third bridge on L12.
Click to expand...

actually CONNECTING the L12 bridge is for making a 266fsb chip into a 333fsb. You have to CUT/BLOW the bridge on all 333 processors, the Barton included!


I just did this mod like 2 weeks ago, I was stuck at 185. I knew my system could handle more because my prior 1800+ TbredA was doing 217fsb! So I cut it and now Im back at 217!

:)

just make sure your RAM isnt limiting you!
 
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cow123

Senior member
Apr 6, 2003
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thanks all, naw it isnt my ram, although its pc2700 nanya 6ns stuff, i had it running 192(384)mhz with old tbred, it is a limitation of the chip for sure

thanks for answer!
 
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cow123

Senior member
Apr 6, 2003
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erk, so u mean i have to go through all that m'larky with blowing bridges on a processor again? i would have hoped i didnt have to physically mod the thing so it was unrepairable (ie. pencilling and simply rubbing it off instead) it's a retail chip although i've probably already lost my warranty through using as3
 
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MatthewF01

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Mar 1, 2002
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heh its a $90 chip...

im MY opinion, running that thing EXCEEDING 3200+ speeds is justifying a voided warranty!


id go for it dude... gotta love maxin' out the bus!
 
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cow123

Senior member
Apr 6, 2003
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gah, ok i thought i blew the 3rd L12 bridge. used 9v battery, 2 wires, 2 fine needles

tested current was going through needles by putting them on my tongue: it was

put the needles to the dots of the bridge, think i see a very quick and slight spark on the upper dot but the bridge under the surface seems unaffected, anyhoo i put it back in boot into windows at 11*182 = 2002mhz or something, same voltage as before with 166fsb

prime fails in under a minute! bah!!! i tried several times after i thought i saw the spark to keep trying it but no more spark and im SURE the motherboard isnt responsible

edit: am i supposed to see a burnt out bridge in the middle bit like the others? i know this was true on my old duron where i could actually see the bridge across the chip but how can you tell whether its broken or not beneath the surface?
 
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infinite012

Senior member
Apr 23, 2003
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Originally posted by: Dustswirl
If you can post your system's specs then the guys could give you the best advices round the web ;)
Click to expand...

list your specs, please. motherboard would be nice...
 
Jeff7181

Jeff7181

Lifer
Aug 21, 2002
18,368
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I had my FSB running at 221 Mhz for a long time with my Week 7 Barton... and I've had my Week 24 Barton running a 233 Mhz FSB perfectly stable. Now if I just had RAM that could keep up.

And BTW... you don't need to modify the CPU at all unless you have a piece of junk motherboard, in which case you should junk it and get some type of nForce2.
 
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cow123

Senior member
Apr 6, 2003
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well i already stated i was able to do little in excess of 190fsb with old tbred on same H/W setup

specs:

barton 2500+

epox 8rda+ with zalman nb32 heatsink on northbridge and modified original northbridge heatsink on southbridge (with AS3 as TIM)

512mb (one stick) nanya pc2700 ram (although as i have already said, i was able to get this stuff upto 192(384mhz) with old setup, nothing has changed at all except new processor)

crappy generic 350w psu (although i have been monitoring voltages, and with the voltage im using at 2ghz (1.575v) its perfectly stable and the voltages are pretty tight)

no VDD mod, board is the way it came except for heatsink changes
 
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MatthewF01

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Mar 1, 2002
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I have actually tested that 9v trick on a dead 1800+ palomino I had, just to see what its like blowing a bridge with a battery, wires, and 2 needles. you are right, the hole or whatever actually shows up ON a pin, and LOOKS like it doesnt work. I was going to blow my 2500+ this way, but after creating this thread i decided to just use an exacto knife.



and POS motherboards ARE NOT THE CAUSE OF THIS. I am using an Nforce2 board, and if my old processor was doing 217 no problem and it was a 266, it must be an issue with the 333 chip because the only thing I changed was the processor. No memory change, no voltage adjustments, BIOS settings, NOTHING.

Cut it gently with an exacto knife, it will do the trick. I was scared at first, but I just started the indentation by just PRESSING the tip down into the packaging where I wanted to cut, and it made a nice sliver I just moved up and down on.
Make a few cuts, then pop it in and test. If not, go a little more. You really dont need much!

I have faith in you!
 
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cow123

Senior member
Apr 6, 2003
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yeah, the old duron i had, i used the 12v rail from an old AT power supply. worked flawlessly could see clear broken bridges and not this poxy blown out dot with the bridge remaining intact (that i get with the battery)

edit: btw i was a little skeptical of the knife trick as people have said you can end up cutting too deeply into the surface and severing all kinds of circuitry - such is why i preferred the electrical current idea as i had already done it on an old chip, albeit with a psu but it worked nonetheless
 
Jeff7181

Jeff7181

Lifer
Aug 21, 2002
18,368
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Mine won't boot at 183 either... but it boots at 166, 200, 221, and 230

*EDIT* and 204,210, and 233
 
Jeff7181

Jeff7181

Lifer
Aug 21, 2002
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Why would I cut the bridge? It's running perfectly fine at 200 right now... why would I want to set it down to 183??????
 
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MatthewF01

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Mar 1, 2002
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Originally posted by: Jeff7181
Why would I cut the bridge? It's running perfectly fine at 200 right now... why would I want to set it down to 183??????
Click to expand...

theres two parts to my response:

1) sorry, i kinda blew over/forgot half your statement
2) i think you misunderstood where 183 came into play... people who are UNABLE to pass the FSB hurdle usually get stuck at 183 or so.
 
Jeff7181

Jeff7181

Lifer
Aug 21, 2002
18,368
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Yeah, I was just pointing out that I can't boot at 183, but I can boot higher... so maybe if people step up to 183, and quit when it won't boot, maybe all they have to do is jump to 200 right away.
 
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