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  1. #1
    Quicksilver, Yikes: G4 Upgrade
    This is the specs from the machine I am running, its a Quicksilver G4, code name:Yikes
    Machine Model: Power Mac G4
    CPU Type: PowerPC G4 (2.9)
    Number Of CPUs: 2
    CPU Speed: 500 MHz
    L2 Cache (per CPU): 1 MB
    Memory: 1.5 GB
    Bus Speed: 100 MHz
    Boot ROM Version: 4.2.8f1

    I am looking for a CPU upgrade for it. I found detail of this package on the net at this adress:

    For a $659.00 US is it worth the bucks and will it run Apps fasther?

    Encore/ST G4 Duet Dual G4 Upgrade
    Number: SG4D-1300-2M

    Dual G4 745X CPUs running at 1.267 or 1.3 GHz
    2MB speedy L3 cache per processor
    Supports Mac OS¨ 9.2 through Mac OS X

  2. #2

    Avalon's Avatar
    Member Since
    Jun 25, 2004
    Luxemburg, Europe
    PowerMac G5 Dual 2GHz (June 2004), 2.5GB, Airport, black 5G iPod 30GB, white MacBook 2.0 2GB
    First of all, the Quicksilver isn't the Yikes. Yikes was the very first PowerMac G4, with a ZIF socket for the CPU. PCI graphics, and the G4 running at either 350MHz or 400MHz. It didn't exist with Dual CPU.

    Your Mac isn't a Quicksilver either, as it never existed as Dual 500.
    These are the Quicksilver's specs:
    G4/733 introduced 2001.07.18 discontinued 2002.01.28
    G4/867 introduced 2001.07.18 discontinued 2002.01.28
    G4/800 dual announced 2001.07.18, first shipped 2001.08.20; discontinued 2002.01.28
    requires Mac OS 9.2 or later
    CPU: 733/867/dual 800 MHz PowerPC 7450
    bus: 133 MHz

    I suppose yours is either a Gigabit Ethernet G4 or a Digital Audio G4

    For more info on Mac specs, check

    Now to your question: Yes, upgrading from dual 500MHz to dual 1.25 will significantly make your Mac faster, allthough it won't be as fast as an original dual 1.25MHz G4, as those have a faster FSB, means the whole system will run faster.

    Now, if it's worth $659,- that's more difficult to answer. For a few hundred bucks more, you can get a more recent (and fast) Quicksilver off eBay. On the other hand, you never know what you get when you buy used stuff.
    I think it would be a good investment, and give your old Mac a lot more speed.

  3. #3
    Glad to be able to get to know what system I realy bought, cause nobody tells you anything about those details when you buy a machine. Now I determined that mine was a Quicksilver cause of the detail in Mac Answers magasine November 30, 2004 pages 62, looking at those board and comparing with mine.

    If I look at those spec

    Then my machine should be A
    Gigabit Ethernet G4

    How would I be shure of that? And it could be important to decide what CPU, HD and Video Card Upgrade I willl choose.

  4. #4

    baggss's Avatar
    Member Since
    Oct 10, 2004
    27" 3.4 Ghz i7 iMac-13" C2D Macbook-OSX 10.10.2 -64Gb iPad 2-64 Gb iPhone 6+-ATV 2-14Tb of Storage
    The best way to be sure would be to take it to a local Mac shop and have them tell you for sure. It may cost you some $$$ to have them look at it, but it beats spending $700 on the wrong processor.

  5. #5

    Member Since
    Jul 22, 2003
    Hamilton College
    20" iMac C2D 2.16ghz, 13" MacBook 2.0ghz, 60gb iPod vid, 1gb nano
    You have the Gigabit Ethernet (Code named Mystic or Snakebite)

    The digital audio came in dual 533,667,733

    The Gigabit Ethernet was the only dual 500 mhz g4 that apple made
    100 mhz system bus
    64k L1, 1 MB L2
    maximum 2GB PC100 SDRAM
    ATA66 for the HD
    2 USB 1 ports
    2 FW400 ports
    Don't forget to use the new User Reputation System

  6. #6
    Guess it is a Gigabit Ethernet
    Thanks so mutch for your help quys, its always a good feeling that you can talk with peoples that have interest in all those details. Beats talking to someone at Future Shop. (smile)

    I will defenitly bgring it to a tech quy before I buy anything, thanks again. Will keep you posted!

  7. #7

    Avalon's Avatar
    Member Since
    Jun 25, 2004
    Luxemburg, Europe
    PowerMac G5 Dual 2GHz (June 2004), 2.5GB, Airport, black 5G iPod 30GB, white MacBook 2.0 2GB
    For the HD upgrade, any IDE HD will do.

    For the Video Card, any Mac compatibla AGP card should work, except those made for the G5.

    For the CPU, as far as I know, every G4 from the AGP to the Quicksilver (2002) use the same CPU daughterboard connector. When you buy the upgrade, you just have to specify which model you have, because of the FSB. The Quicksilver had a 133MHz FSB, as opposed to 100MHz for the other ones.

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