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dual processor

  1. A

    MP 1,1-5,1 MacPro 4,1 dual processor upgrade problem x5680 CPU’s

    Hello, I am hoping someone can help as this problem has me scratching my head. I have a dual processor Mac Pro 4,1 that originally had dual e5520 CPU’s. I have updated the firmware (and rom) to make it a 5,1. I have installed two de-lidded x5680 CPU’s. System booted up fine with original dual...
    • ArchStudent
    • Thread
    • dual cpu dual processor mac pro 4.1 mac pro 5.1 mac pro cpu upgrade x5680
    • Replies: 18
    • Forum: Mac Pro
  2. Appleuser201

    Dual Processor Powermac G4 Performance VS. Single CPU?

    I'm confused about dual processors... How much extra performance do you get? (Single 1.25 MDD vs dual 1.25 MDD powerMac G4) would a dual 1.25 power Mac equal or compare to the performance of a single 2ghz G4 or even a 1.6ghz G5? Lastly, could you say a dual 1.42 GHz power mac with both...
  3. glawrie

    Dual Processor 5,1 - which one is CPU A?

    Subject says it all really. Could someone confirm which of the CPUs on the Mac Pro 5,1 dual processor tray is referred to as CPU A. From other posts, I think it is the one on the right (as you look at tray in Mac Pro 5,1 with side off) - i.e. the one that is nearer the back of the machine...
    • glawrie
    • Thread
    • dual processor macpro 5.1
    • Replies: 2
    • Forum: Mac Pro
  4. kevinakerberg

    Resolved Rarity of Dual 533Mhz PowerMac G4 Digital Audio

    Hi everyone, I recently bought a dual processor 533Mhz PowerMac G4 to upgrade and resell. However, when looking on eBay to get an idea of what it's worth, I found that there were no listings at all for this model. There were some for the single processor version for average prices but none for...
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