Can you replace 2 CPU's with another set - Differant serials?

D

digitalPimple

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I did a search and did not find the answer. I was wondering if I can replace my Dual 1.8 G5 Powermac CPUs with another set of 1.8's that have different serials?

I have a Mac tech friend that can thermal throttle the CPU's for me once their in.
Will this work?

Thanks
 
It is not clear what you are trying to do. The processor and cooling unit of each G5 must be matched and mated. G5 processors are sold as integrated processor/cooling modules. The modules are not sold as loose units. They are available to the general public only as part of a complete system. It makes no sense to remove the processor modules from one system and to place it into another. If you suspect that your existing G5 has gone bad, then the intelligent thing to do would be to move your data to the G5 with the good CPUs.
 
I appreciate the response but If I had a second 1.8 system, I would not ask this question.

Can a matched pair of 1.8 dual CPUs be added to another 1.8 dual MoBo with different serial numbers?
 
That would be the case with liquid-cooled G5s, but the dual 1.8 GHz is not liquid cooled, and simply has a (really large) heat sink attached to each processor. One processor/heatsink unit at a time could be replaced, but the calibration procedure has to be run, which is what digitalPimple was referring to. Other than the calibration procedure, the two processors are not matched sets.
 
Whether air-cooled or liquid cooled, G5s are not sold as bare processors. They were sold as mated processor/cooling unit modules. It should not have gone unnoticed that there is no third-party replacement or upgrade industry surrounding the G5. A user may be able to secure a replacement from Apple. My suggestion would be to check with a local computer technician who specializes in Macs.
 
Thanks, I ask because I see a lot of second hand retailers selling used processors and/or logic boards and they ask you to check your serials to try and find a 3 digit EEE code or something. They never really explain WHY that is. Is it just the calibration or is it more then that.

I have 2 replacement 1.8's on the way with one dead CPU on a system. The replacement serials do not match however. It seems silly that you can't just plug in another set and re calibrate them. We shall see. This would not surprise me from Apple however.

BTW, I would assume there's no secondary market for parts because Apple would never grant permissions for anyone to do so. That has been Apples M.O. forever.

Thanks. I will post my findings when they arrive.
 
digitalPimple said:
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BTW, I would assume there's no secondary market for parts because Apple would never grant permissions for anyone to do so. That has been Apples M.O. forever.

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Click to expand...
Your assumption is very much in error. The G5 is not an Apple processor, it is an IBM processor. Apple sold five generations of computers based on various families of PPC processors from Motorola/Freescale and IBM. The first four generations saw a fairly robust third-party upgrade market. [A few months before I bought my Power Mac G5, I upgraded my Power Macintosh 9500/132 (G2) to a 1 GHz G4.] Apple did not suddenly change its policy when it introduced its G5 line. Nefarious Apple M. O. has nothing to do with the lack of a G5 upgrade market. It had everything to do with the massive heat generated by the processor. This is the same reason that the PowerBook G5 never saw the light of day.

Read and be wise.
 
Ok I am wrong. "IBM" will not release the rights to produce the processors and parts. I am speaking from a business standpoint not a Tech standpoint. This would be a condition of IBM and in short, APPLE.

Reading over the deal IBM and Apple made and the investment in a new facility in New York(?) to produce these, I'm sure they want all the $$$ they can muster. Smart business.

Nefarious... NO... Good Business...Yes.

Indeed you need to do more homework on the negotiations that took place before commenting and generally speaking down to strangers. ;)


Anyway, yes you can place random processors in a system if you have the tool to recalibrate them to the motherboard. Which I do.... as a tech. Otherwise you need to matchup the EEE number with the dead CPU to avoid calibration problems.


Thanks for the spirited debate, was not really expecting all the APPLE love here! LOL
 
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