Soldering processors to upgrade...possible compatibility between them

[Jose]

Yes, I know this has been talked about, but sometimes people answer, sometimes don't. And maybe be know someone had the guts to try iit 8-) So there are some PPC, processors that are exactly the same but have diferent clockspeed. Has anyone took advantage of this to solder in a faster 603 or 604 in his/her card?! :-o  8-)
Then let us know...
Cheers

[Karlos]

Didnt some guy with access to the appropriate surface mounting technology stick a 300MHz rated 603e from a mac onto a blizzard?

I seem to recall something like that a while ago...

[Jose]

You NEED to remember... :-o  8-)
I guess there's nothing like trying but it would be encouraging to know somebody else had results...

[Athlon]

Hmmm

[NeRP]

This might help:



To   G-REX@yahoogroups.com
From   Zacc
Date   Sat, 27 Jul 2002 22:10:39 +0200
Subject   [G-REX] 350Mhz BPPC by zacci )
Real name   Zacc

Hi all !

A few days ago, I replace the original 240 MHz 603e PPC processor with a 300
Mhz one.
And it's working fine on 330 Mhz frequency. ( but works at 350 MHz maximum
frequency)

Speed results:

603e

240Mhz(old) 300Mhz(new) 330Mhz(overclk.) 350Mhz(overclk.) 366Mhz(unstable)
--------------------------------------------------------------------------
295Mips     368Mips     406Mips          430Mips          450Mips  
182MFLoops  227MFLoops  251MFLoops       266MFLoops       278MFLoops



Can anybody help me in increasing the PPC RAM access speed ?

Unfortunately I didn't use more than 60Mhz bus clock frequency with the
G-Rex board. Before G-Rex, my PPC+Bvision worked fluently at 66.6667 Mhz
bus clock frequency.


Regards

--Zacci--
+-------------=%%&##########&%%=--------------+
|                                             |
|   Amiga1200 PowerPC603/330Mhz+68060/60Mhz   |
| Symbios Fast SCSI II, 128Mb 50ns EDO Ram    |
| G-Rex PCI bridge, Voodoo 3 3000 3D 16Mb gfx |
|    ESS Solo-1 Sound card, RTL 8029 eth0     |
|      Pinnacle Studio PCTV Pro TV card       |
|     Nokia Multigraph 447Za 17" Display      |
| FastATA IDE controller, PS/2 mouse adapter  |
|     2xIBM Ultrastar 9.1Gigz LVD SCSI HD     |
|   Seagate Barracuda 18Gigz ULTRA SCSI HD    |
|     Quantum AtlasII 4.3Gigz UW SCSI HD      |
|          Plextor PX-R820T SCSI CDR          |
|    Plextor T40 SCSI CD - comming soon    |
|      ASUS IDE 50x CD, LS-120 IDE Drive      |
|         Logitech PS/2 optical mouse         |    
|                                             |
+-------------=%%&##########&%%=--------------+

[kd7ota]

Ive always thought that it could be done, but someone was also telling me about that the voltages are different, and a few other things. I would like to see a fast PPC on a blizzard that was custom done  :-)

[Jose]

Thx NeRP.  I think I'm gonna try it some day or another. If I do I'll post the results. I don't have the necessary electronic equipment though

[lempkee]

jose: hah u still need to do alot of changes to get something like this work-..

also , if this is the g3 i heard about (there was only one right??) it died pretty fast...


overclocking is fun....till it says !bzzzztztt pofff!  

[GPT]

There was one guy, don't remember his name, that worked in a company were the produced o
mikro processor board.

He borrowed one of there machines and used it to solder on a G3, and it worked for about a couple of houres and then it fried = no heatsink, no clue why he didn't use one.

[Framiga]

by kd7ota on 2003/8/10 9:21:05

Ive always thought that it could be done, but someone was also telling me about that the voltages are different, and a few other things. I would like to see a fast PPC on a blizzard that was custom done

Have you (all) an idea, what evil work, is desoldering a 603e from a Blizzard?

603e has some micro SMD components, placed through the CPU pins . . . .brrrr!!!

Good luck :-)

Ciao

[whabang]

I've heard that it should be possible to solder a 060 onto a 040 socket if you manage to lower the voltage. I assube that it should be possible to do the same with PPCs.
Wasn't there a G3 accelerator similar to the Overdrive Pentiums availible for old 3- and 486s?

[Framiga]

by whabang on 2003/8/10 13:35:19

I've heard that it should be possible to solder a 060 onto a 040 socket if you manage to lower the voltage. I assube that it should be possible to do the same with PPCs.
Wasn't there a G3 accelerator similar to the Overdrive Pentiums availible for old 3- and 486s?

mhhh! another kind of work!

On Blizzard/CSPPC is quite simple to replace an 040 with an 060.

For the PPC, is a very hard works, even for a good tecnician (with a professional desoldering station).

Ciao

PS- by the way . . .your avatar, crash my system :-) . . . sometimes. Any suggestion?

[Karlos]

GPT wrote:
...
He borrowed one of there machines and used it to solder on a G3, and it worked for about a couple of houres and then it fried = no heatsink, no clue why he didn't use one.

So, there exist G3 models that are pin compatible with the 603 then? I had no idea...

[Jose]

@GPT:
Very cool!!. WHO was that guy?
 I know people that could do it for me, but the equipment might be the problem.

[GPT]

The pins isn't the same on the G3 and probably not the Voltage either maybe not even the size, but he did it.

And it's teoretical possible to do that for those wo don't belive me. They are (603/4 and G3) complatible.