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Does anyone besides me think this mod is worth doing??

T

TerryMathews

Lifer
I have an A7M266D with 2 1.2GHz AthlonMPs. I understand that it is very likely that they will hit 1.4GHz @ 1.85V. My board also does not have multiplier adjustments. 🙁

I found a link for a "golden finger" for Socket A processors. It involves, among other things, cutting 8 traces on the motherboard. All repairable proceedures, but still...

I guess what I'm asking is, would anyone else try this? Check this link out and LMK.
 
Depends how pissed off you are going to be if it thrashes your motherboard 😉

I would for curiosity's sake, but I'd be prepared to replace the motherboard.
Then again, its not much of a speed increase...
 
I would not, you wouldn't notice the difference between a 1.2 and 1.4.

I have the same board running 2 1800 xp
 
Neat idea but not worth frying your componets... 😛

Lotta work too... 😉 (OH crap I crossed one wire and now have a smoke ball...) 😀
 
Originally posted by: TerryMathews
I have an A7M266D with 2 1.2GHz AthlonMPs. I understand that it is very likely that they will hit 1.4GHz @ 1.85V. My board also does not have multiplier adjustments. 🙁

I found a link for a "golden finger" for Socket A processors. It involves, among other things, cutting 8 traces on the motherboard. All repairable proceedures, but still...

I guess what I'm asking is, would anyone else try this? Check this link out and LMK.
Click to expand...

Terry,
We know Cyrano...good mod...we worked with him. But we have just the mod you need, same circuits but cuts no traces on mobo. Make the necessary connections by soldering fine wires to the Socket A sockets on back side of mobo. Just added section on this circuit at http://www.beachlink.com/candjac/index.htm link to Tbred article for circuit diagram of the switches/jumpers on pcb mod. Link to Palomino or Duron/Tbird articles as needed for pic of Multiplier pinouts and more background info on Multiplier bridges.
John C.

 
If it were me, I wouldn't risk ruining my components for such a little gain, but since its your stuff, not mine, I say GO FOR IT!!! 😀
 
Originally posted by: johncar
But we have just the mod you need, same circuits but cuts no traces on mobo. Make the necessary connections by soldering fine wires to the Socket A sockets on back side of mobo. Just added section on this circuit at http://www.beachlink.com/candjac/index.htm link to Tbred article for circuit diagram of the switches/jumpers on pcb mod. Link to Palomino or Duron/Tbird articles as needed for pic of Multiplier pinouts and more background info on Multiplier bridges.
John C.
Click to expand...

I either didn't find the right page or the information there is way over my head. Care to give me a summary? 🙂 I understand mostly how the pins work, but I don't understand the circuit he laid out. 🙁

 
I would suggest you print off those articles and do the mod after your board has been antiquated and you have already upgraded to something else. Myself when I had my p100 I never overlcocked it but now that it is virtually useless to me I overclocked the **** outta it!
 
Link is correct, then Tbred article, then section titled...
"MULTIPLIER MOD ON SWITCHED OR JUMPERED PCB"

Diagram shows 5 wires coming from backside of L1 pin sockets to 5 jumpers or switches (on a small pcb), switching the 5 leads between Vcore and ground thru 100 ohm current limiting resistors. User gets Vcore and Gd from 2 add'l wires connected to Vcore and Gd pins, (pins identified by "AJ27" for example, reference a pinout pic in Tbird article or the pinout diagram in AMD datasheet).

Then user applies Multiplier Remapping Algorithms or Table of settings, (found elsewhere like Tbird article) to reset default Multiplier by switching the respective Bit Values HI or LO...Vcore = HI, Gd = LO.

L1 bridges must be closed...operation of switches/jumpers simulates what a mobo/bios that supports resetting default Multiplier does...activates circuits that connect to default Multiplier signal circuits (thru closed L1s) and over-ride default HI/LO signal settings. Hope it's clear now.
John C.

Btw..our articles..we've done similar on SS7 mobo...have a 10 unit dip sw on front panel of case...reset FSB/PCI Divisor, Memory Freq, FSB Freq, Multiplier...never open the case.

 
Originally posted by: TerryMathews
OK, I've got it so far. Why don't I need control of the FID pins? Is it because L1 is connected?
Click to expand...

No.......
Read the Palomino article, you will find that the Palomino cpus seem to have dispensed with "separate" bridges setting the FID Multiplier "ID" function...unlike the L6 bridges on Duron/Tbird.

We were unable to find any bridges connected "directly" to the FID pins, there were a higher resistance connections, and most important...no one had any problems oc'g and ignoring the issue. So we concluded FID resettingswas done automatically internally.
Our tracing work was done on similar 1.2G MP, one of the 1st Palominos.

Read about it, and diagrams in its own section in Palomino article at site...which you should have done first.;-)
John C
 
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