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Adding 2nd CPU to 1.8 G5
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Junior Member
Join Date: Feb 2002
Location: NE
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I was wondering if it would be possible to 'convert' a SP 1.8 G5 to a DP 1.8 simply by adding a 2nd CPU? In other words, is there anything else different between the SP and DP 1.8's? Anything in firmware or hardware that would prevent this?
I'm not sure how one would go about acquiring a 2nd processor anyway, so it's probably not much of a possibility, but maybe down the road ...
Tim
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Senior User
Join Date: Dec 2003
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You'd need to buy the logic board from a dual 1.8 G5, a second G5 processor (that would need to be of the same stepping, etc, if dual PowerPC setups are anything like dual Intel setups) and possibly the power supply from a dual 1.8 machine.
it would probably be cheaper to just sell your single and buy a dual.
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Professional Poster
Join Date: May 2001
Location: Switzerland
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Originally posted by fizzlemynizzle:
You'd need to buy the logic board from a dual 1.8 G5, a second G5 processor (that would need to be of the same stepping, etc, if dual PowerPC setups are anything like dual Intel setups) and possibly the power supply from a dual 1.8 machine.
it would probably be cheaper to just sell your single and buy a dual.
What he said...
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Clinically Insane
Join Date: Oct 2000
Location: Los Angeles
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The single processor 1.8 G5 does not contain the extra processor slot, so it cannot be upgraded.
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"The natural progress of things is for liberty to yield and government to gain ground." TJ
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Addicted to MacNN
Join Date: Jan 2003
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The single processor machines have a 450W power supply; the dual processor machines have a 600W power supply.
Even if you could add a second processor to your motherboard (which BTW you can't), your machine as-is wouldn't power it properly anyway.
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Addicted to MacNN
Join Date: Oct 2001
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Not possible. Too many components missing.
OK. Actually, it would be possible, but not probable.
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I'm a bird. I am the 1% (of pets).
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Moderator  Join Date: Sep 2001
Location: Arizona
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The only way you'll see a Dual in your machine is if a Mac processor upgrade manufacturer manages to put two G5s on one daughtercard.
Which is probably something you will end up seeing, though not for a while I imagine.
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I like chicken
I like liver
Meow Mix, Meow Mix
Please de-liv-er
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Fresh-Faced Recruit
Join Date: Mar 2001
Location: Helsinki,Finland
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Originally posted by Cadaver:
The single processor machines have a 450W power supply; the dual processor machines have a 600W power supply.
Even if you could add a second processor to your motherboard (which BTW you can't), your machine as-is wouldn't power it properly anyway.
The power supply is adequate if you could fit in one or two 970FX processors. That is probably the reason why they are using two different power supplies. Now that they have the 970FX they can use the 450W version in duals also. Maybe in the lowend only but it still is cost efficient and very nice way to put a stop in processor upgrades. 
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