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dual processors in a single processor mac?

Discussion in 'Mac Pro' started by orangejedi, Jul 11, 2008.

  1. macrumors newbie

    Hey can anyone lend their expertise on this-?
    I have a powermac g4 AGP (single 450mhz processor). will this computer support dual processors, such as a dual 500mhz? If so, which processors from which computer model(s) can i use? like can i put a dual 500 from a Gigabit Ethernet mac in the AGP mac? please help :eek:

    oh (heh heh) and is there such thing as 512mb PC100 ram?
  2. macrumors 68000


    I put a powerlogix dual 1.3 GHz into my 500 MHz Sawtooth a while back. I highly recommend the upgrade. check out macsales.com
  3. macrumors 68000


    I second the dual 1.3. With the 100mHz bus, the L3 helps more than added speed (I road tested a dual 1.8 before I bought the 1.3; snappier but a lot more beach balling)...
  4. macrumors 68000


    Oh, and--yes, it MAY support dual processors. There is an utility at MacSales that will test your computer and tell you whether or not it can support duals.

    EDIT: there USED to be an utility. Now there's just a pdf with instructions:


    I believe so, but your machine supports PC133 RAM anyway (it just runs at 100 once installed), so feel free to max it out to 2gb. :)
  5. macrumors 6502a

    Lord Zedd

  6. macrumors 68030


    Not trying to turn you away, but with the amount of money you'd have to invest, your machine will still get smoked by any G5 and of course ANY Intel Mac.

    If I had the $, I wouldn't care, but if $ is tight, I'd spend it on the faster machine.
  7. macrumors 603


    I second this. Just buy a Mac Mini. It will be faster than the upgraded G4 anyway.
  8. macrumors 68000


    Why did either of you bother? The thread asks a specific question, you're not helping at all.
  9. macrumors G5


    orangejedi: to answer the original question - no, you can't just transplant a dual processor out of another PowerMac G4, you have to buy a purpose-built upgrade from Sonnet or Powerlogix.

    The Gigabit Ethernet dual processor machines use the 'Mystic' motherboard (AGP 4x). Your 450 MHz machine probably has the 'Sawtooth' motherboard (AGP 2x). AFAIK the only machine that could take a dual processor module out of a Gigabit Ethernet DP machine was the 400 MHz single processor with the Mystic motherboard.

    The cost of the upgrade (coupled with the fact that the overall performance is still hampered by the slow system bus, memory bus, ATA bus and graphics) is why it is prudent to advise the poster that the money may be better spent on a newer machine, disconap.

    More information on upgrading older Macs is available at www.xlr8yourmac.com and www.lowendmac.com
  10. macrumors 68040


    I have been weary of G4 processor upgrades. With all that power runnin' through the tubes, a 133mhz front side bus is quite the bottleneck. I would recommend something in the area of dual 1.0 - 1.4 ghz (say you have the correct machine) anything more seems like a waste of money that could be used towards a better G5.
  11. macrumors 6502a

    Lord Zedd

    The only one that does not help at all is your post. Suggesting a MacMini is very smart, upgrading a G4 has very low value for the power gained.
  12. macrumors 603


    Because upgrading a G4 is a waste of money. The real question is why did you bother?
  13. macrumors 68000


    Look at it like this:

    "Hey, how do you make bread?"

    "You should buy cookies."

    All I'm saying, really not intending to start a fight or anything, just saying that the OP asked something specific and your advice had nothing to do with his/her question.

    EDIT: as for a MacMini, there are myriad reasons not to upgrade to one (storage capacity for a start, that's been the primary reason I've never considered one)...
  14. macrumors G5


    In general, when questions are posted here, people try to help in the best possible way. Answering the question may not be the best possible way to help and in this case most likely isn't. It's called "stepping back and looking at the bigger picture".
  15. macrumors G5



    "I have sugar, butter, oatmeal, raisins and flour. How do you make bread?"

    "It sounds like you had better consider making cookies instead."
  16. macrumors 604


    Can't we all get along? :p

    The MacMini might be a good recommendation for someone who is asking just about a faster computer, but you guys are forgetting that there are certain products and probably applications that people use and have to keep the old applications. Think any expansion cards, etc.

    So you are all right, all three posts were a waste, and all there posts were useful. :)
  17. macrumors 68000

    Maybe you guys should just wait until the OP posts instead of arguing, we have no idea of what his situation is.
  18. macrumors 604


    where is the fun in that? ;)
  19. macrumors newbie

    tough crowd! ;)

    Wow - it seems i've created quite the heated debate! :)

    for all those wondering, i have definately considered the mac mini, but there were of course a few things that made me think twice - i can still get a g4 upgrade for less than a new mini, and my current g4 has 320 gb of well-used hard drive space, more than any mac mini, so that would mean an external hard drive at the least, which means more $$, and that's an issue cuz i'm 15 and don't have steady income yet and i blew all my cash on the instinct on which i'm typing this post :) (totally worth it though) ,and i would never feel right spending my money on a low-end mini instead of an amazing new iMac. so basically i wanted to know the mechanics of processor upgrades so i wouldn't buy a processor that would blow up my computer.

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