Unlock the coppermines???

[1MoInput]

So does anyone knows if there is a way to unlock the coppermines?
IP

[daveleau]

No, there is no way to unlock the PIII/ Celeron cpus.
This has been long sought after, and reported on a few times but always untrue...
Sorry,
Dave

[FrozenLiquidity]

No

So far there is no way to "unlock" the clock multiplier on Coppermine CPUs, as the clock multiplier is hardwired to the CPU.

Unless you run accross and Engineering Sample CPU, the only way you will be able to overclock is to bump up for FSB speed.

FrozenLiquidity

[Comtech]

I know something you don't.
There is going to be a way to unlock them.
Working on the problem right now, with a couple other techs.
Any updates, if and when it happens, it will be spread around. http://sysopt.earthweb.com/forum/biggrin.gif

[FrozenLiquidity]

Good luck Comtech!

Keep us informed!

FrozenLiquidity

[RobRich]

One can force a partial manipulation of the multiplier on a Slot1 processor though PCB modification of certain resistors. However, it leads to weird results, such as changing a P3 550 to 5.75x, not really a usable modification.

Using a RESET program for changning the core multiplier has worked for some with VERY early fab cores and most partially locked engineering samples. I've long lost my copy of this Intel internal development utility, so I can not provide any further information. It was a P2-specific application, so it would only be speculative of the P3 could be altered as well. Perhaps metacrawler or ftpsearch could help in locating the file.

A modifcation of Intel processors may be possible through the correlated drive state manipulation of pins B16, A17, A8, and A5 (LINT1, LINT0, IGNNE#, and A20M# respectively).

Here is the drive pattern:

Multiplier LINT1 LINT0 IGNNE# A20M#
1.5 H H L H
2 H H H H
2 L L L L
2.5 H H L H
3 L L H L
3.5 L H H L
4 L L L H
4.5 L H L H
5 L L H H
5.5 L H H H
6 H L L L
6.5 H H L L
7 H L H L
7.5 H H H L
8 H L L H

I'm open to any other ideas or thoughts on this topic. ????

Good Luck,
Robert Richmond

[FrozenLiquidity]

Woah Rob, where did you learn all of that stuff?!
The modification the the PSBs actually work? How does it get a 5.75x multiplier, and would it still run? I have a P3700 that I could try it on. (yeah, right!)

FrozenLiquidity

[RobRich]

A mix of Intel tech docs and information I've obtained from past forum posts. The PCB modification requires changing the values the certain resistor values. Try a web search for the German Intel processor unlock scare that happened a few years ago.

The pin modification hack would be the best bet. Inorder to properly perform this technique, you would have to cut the pin's trace routes and then apply the needed drive voltage. A possible s370 mod would be to create a device similar to a Powerleap NEO flip chip convertor that performs the needed modifications at the socket level.

Robert Richmond

[NRG]

sorry 2 be nieve and all...lol but what the hell are coppermines or is it just a nickname 4 intel slot 1 and 370 chips..and how did they b/come "coppermines"? info greatfully recieved...

NRG

[FrozenLiquidity]

the Coppermine is the second-generation Intel Pentium III Processor.

Intel has the original Pentium III's called the Katmai, then they made a new Pentium III called the Coppermine. The coppermine had less L2 Cache, but the L2 cache was running at full speed. The Katmai's cache was running at half speed. Also the Coppermine used a smaller core die size. It was faster that the Original Katami Pentium III's. The Coppermines can be found in speeds of 600-1.13GHz I believe.

FrozenLiquidity