PowerMac G3 Mod

Discussion in 'PowerMac G3 B&W' started by Andropov, Apr 1, 2012.

  1. Andropov

    Andropov

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    Apr 1, 2012 at 2:00 PM #1
    Andropov

    Andropov

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    It isn't good hardware, but I just want to give a speed up to my old 300Mhz B&W G3 using some hardware that I have lying around.
    Specs:
    - Unknown motherboard :worried_anim:
    - Intel Core 2 Quad a 2,66Ghz (Before: PowerPC G4 a 300Mhz)
    - Nvidia GeForce 8400GS en PCIe (Before: ATI Rage 128 en PCI)
    - Hard Drive IDE Western Digital 160GB (The same)
    - RAM 1GB DDR running at 1066Mhz (Before: 1GB PC100)
    - CD/DVD double layer drive (Before: lector de CD-ROM)

    Some photos of the original PowerMac G3 (sorry about the poor quality of the first ones) :
    [​IMG]

    [​IMG]


    Just the original computer open.

    [​IMG]

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    The old CD-ROM drive

    [​IMG]

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    The old processor, a PowerPC G4 running at 300Mhz.


    [​IMG]

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    And after the mod (in progress):


    I don't change anything in the external case appearance

    [​IMG]

    [​IMG]


    The new mobo. It's on a wood panel because the moounting points are too difernt and I would't break the entire chassis. The CPU heatsink hasn't got a fan on it because it crashes with the power supply and I can't close the case. At least, the wooden panel will eliminate all the vibrations of the graphics fan.

    [​IMG]


    The hard drive on its rack. It isn't connected because I need a larger molex wire.

    [​IMG]


    [​IMG]


    I take this photo before I put the new power supply.
    [​IMG]


    The new power supply. I take out the louder, bigger, 120mm fan, and I put a 80mm one, taking the air out of the case. I will cover the hole with a PVC panel.

    [​IMG]


    [​IMG]


    After put the new power supply. As you can see, I need a larger molex wire, a larger chipset wire and a larger CPU wire. :hammer:

    [​IMG]


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    [​IMG]


    A photo with the case closed. As you can see, the heatsink is really near to the power supply. If I put a fan over the heatsink, the case wouldn't close. So, maybe I'll use a water cooling system.

    [​IMG]


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    [​IMG]

    After a few months I want to use a water cooling system, with a double radiator in the bottom of the fan, replacing the hard drive rack. And I change the original yellow led of the power button, now it's blue (I think it looks better).

    Sorry about my bad english :p
     
  2. eelhead

    eelhead Super Moderator

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    Motherboard:
    Asus Sabertooth X58
    CPU:
    i7 950 3.06GHz
    Graphics:
    Zotac GeForce GTX 670
    Mac:
    iMac, MacBook Pro
    Classic Mac:
    iMac, Power Mac
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    Apr 1, 2012 at 3:15 PM #2
    eelhead

    eelhead Super Moderator

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    Motherboard:
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    i7 950 3.06GHz
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    Zotac GeForce GTX 670
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    iMac, MacBook Pro
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    iMac, Power Mac
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    Nice work, looking really good!
     
  3. roto31

    roto31

    Joined:
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    Motherboard:
    Sawtooth Build
    CPU:
    i5 650 @ 3.3Ghz or 3.7Ghz
    Graphics:
    MSI nVidia GeForce 610 2GB
    Mac:
    iMac, MacBook Pro, Mac mini, Mac Pro
    Classic Mac:
    128K, 512K, Apple, Centris, iMac, LC, Performa, Power Mac, PowerBook, Quadra
    Mobile Phone:
    iOS
    Apr 3, 2012 at 6:41 PM #3
    roto31

    roto31

    Joined:
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    Motherboard:
    Sawtooth Build
    CPU:
    i5 650 @ 3.3Ghz or 3.7Ghz
    Graphics:
    MSI nVidia GeForce 610 2GB
    Mac:
    iMac, MacBook Pro, Mac mini, Mac Pro
    Classic Mac:
    128K, 512K, Apple, Centris, iMac, LC, Performa, Power Mac, PowerBook, Quadra
    Mobile Phone:
    iOS
    Take a look at my "sawtooth" build. I had similar issues but everything fit fine inside my case. The G3 and G4 "Sawtooth" cases were very similar.
     
  4. Andropov

    Andropov

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    Apr 5, 2012 at 12:19 PM #4
    Andropov

    Andropov

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    Finally, with a cardboard box I found a provisional solution. When I close the case, the CPU heatsink is in front of the fan.

    [​IMG]

    [​IMG]

    [​IMG]

    I was measuring the area for my 2x120mm radiator. In the bottom of the case, I've a 290x130mm area, completely clear from mounting points. I think I should use an Alphacool NexXxoS ST30 Full copper. It has a 15mm spacing between fans, so it's a little bit longer, perfect for my non-standar 290x130mm area. The radiator measures 279x 124x30mm.
    For the CPU block, I'm planning to use a EK Supreme LTX Acetal Black. But, Can I use 90º fittings for the block?

    The area for the radiator:

    [​IMG]
     
  5. Frankylan

    Frankylan

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    Motherboard:
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    i7 2600k
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    Classic Mac:
    Power Mac
    Apr 5, 2012 at 11:00 PM #5
    Frankylan

    Frankylan

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    Motherboard:
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    i7 2600k
    Graphics:
    ATI 5770 Vapor-X by Sapphire
    Classic Mac:
    Power Mac
    Hallo,
    thats my water-cooling solution in a G4-case
     

    Attached Files:

    • G4-Watercooling.jpg  (376 KB, 4,698 views)
  6. gally

    gally

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    Motherboard:
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    Intel Core i7-3770K
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    4000HD
    Mar 5, 2013 at 12:32 AM #6
    gally

    gally

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    Motherboard:
    Giga-byte E Q77M-D2H
    CPU:
    Intel Core i7-3770K
    Graphics:
    4000HD

    Can you upload more photos ???
     
  7. MrBlonde

    MrBlonde

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    Motherboard:
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    CPU:
    Intel Core i5-3570K
    Graphics:
    MSI GTX 560Ti
    Mac:
    iMac, MacBook Pro, Mac Pro
    Classic Mac:
    iMac
    Mobile Phone:
    iOS
    Mar 14, 2013 at 2:45 PM #7
    MrBlonde

    MrBlonde

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    Motherboard:
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    CPU:
    Intel Core i5-3570K
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    MSI GTX 560Ti
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    iMac, MacBook Pro, Mac Pro
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    iMac
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    Lookin' good!! :)
     
  8. mykuls

    mykuls

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    Motherboard:
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    i3-3225
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    HD 4000
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    MacBook Air, MacBook Pro
    Classic Mac:
    Centris, Power Mac
    Mobile Phone:
    iOS
    Mar 18, 2013 at 3:48 AM #8
    mykuls

    mykuls

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    Nice work! You could use a piece of acrylic for that fan opening. Even better would be aluminum grill material. They sell that @ home stores.
     
  9. zealious

    zealious

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    Motherboard:
    z77m d3h mvp rev 1.0 bios f6
    CPU:
    i5 3507k ivy bridge @ 4.2
    Graphics:
    EVGA gtx 680
    Mac:
    MacBook Air, MacBook Pro
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    iMac
    Mobile Phone:
    iOS
    Mar 25, 2013 at 10:07 AM #9
    zealious

    zealious

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    Motherboard:
    z77m d3h mvp rev 1.0 bios f6
    CPU:
    i5 3507k ivy bridge @ 4.2
    Graphics:
    EVGA gtx 680
    Mac:
    MacBook Air, MacBook Pro
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    iMac
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    I second that. use aluminum or acrliyic..

    idk about water cooling... radiators seem to take up a lot of room.. unless you are planning a oc.
     

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