New Workstation: PowerMac B&W G3 Hackintosh

After 6 1/2 years I decided to replace my good old early 2008-20″ iMac. But instead of buying a new one or switching over to a classic PC-workstation, I decided to build my own custom PowerMac G3 Blue&White Hackintosh with next level monster-hardware.

How I’m using this Machine

I’m using this machine for programming purposes and data-analysis, but also for editing my amateur photos/videos. Next to that I like to have a classic workspace for office-related stuff instead of always using a laptop.

Who should use a Hackintosh and who not

Not for:
You should not think of building your own Hackintosh if you depend on your computer. Too many times the computer won’t boot up or shows other weird symptoms that you’re not used of a well-working Apple-computer. My laptop is still my main-computer that I’m using for paying my bills, answer my mails or saving my pictures while I’m on a trip. The Hackintosh is only an increase of comfortably and power but never will be my primary computer. Don’t expect having a careless-computer for a cheaper price than an Apple-machine.

If it is fun for you building computers. If you can bring up some time in configuring the machine to make things work as expected. If you want to have a cheap Unix-workstation but still want to be able to use proven tools like MS Office, Adobe- & Apple-stuff instead of depending on alternatives for 100%. If you want to have the same power of a MacPro for much less.
And finally: If you know what you are doing.


I basically always checked all components on Geizhals which is an Austrian hardware/seller ranking page. Afterwards I’ve checked TonyMac if users had good experience with them when building their own hackintosh.

CPU: Intel I7 4790K 4GHz.
Wow. 4GHz. Four cores, or technically even eight. What an improvement to the 2.4 GHz Intel Core2Duo of my iMac.

Mainboard: Intel Sockel 1550, Gigabyte GA-H97M-D3H
I’ve chosen a microATX-mainboard, to be 100% sure that I won’t have any troubles getting this thing into the B&W-case. Lots of tonymac-users were also using this board. Too bad that I didn’t make the onboard-graphics work with my Hackintosh. So I had to buy an additional graphics card.

Graphics: Asus GTX 760, 2GB
I really don’t play any games on my machine. So initially I thought of only using the mainboard’s onboard-graphics. Too bad that this did not work, so I invested more money to have a future-save 4K compatible-graphic card.

RAM: Crucial Ballistix Sport, 16GB
Wow. 16GBs of RAM. Most Linux-distributions would fit in there, multiple times! There are two free banks left on the mainboard so that I can extend the system to 32 GBs in the mid-future.

Storage: SAMSUNG 840 Evo Series 500GB SSD
In the last years, the biggest improvement in hardware I realized was switching to a MacBook Air and its build-in flash storage. Nowadays old-school spinning hard drives should be only used for backup or mass-storage of data. But not as working devices since prices really dropped a lot in the last couple of years.

Power: BE QUIET! Straight Power E9 580W
580Watt should be enough for my system. This power-supply is by far the most noiseless supply I’ve faced.

All in all: € 1.100 (~US$ 1.340)

You can also check out my post on about my build.

PowerMac G3 B&W Case-mod

While doing my first Hackintosh research on the Internet, I came up with the idea to use an old Apple Blue & White PowerMac G3-Case from 1999. I’ve got mine on eBay for around €50.
70% of my time I spent on this case-mod. The other 30% for setting up the Hackintosh.

Basically the G3 B&W-case is ATX-compatible, but only for around 90%. I had to make some really terrible cuts into the case’s back to make the power supply and the mainboard fit. I also used an additional Plexiglas because the ATX mainboard’s screws wont fit to the case directly. A nice thing about this case is that you can open the door to the right to reach all the hardware. Also there is a nice bay for hard drives that you can disassemble easily. Apple also uses an own logic-board for the case’s front-button & 2-color led. Since I’m only using the power-button I bypassed the logic board and connected it to the mainboard directly.

To-dos & What’s Next:

The first thing I’m going to replace is Intel’s boxed fan. If the computer is idling around the fan really wont make so much noise. But as soon when you start ‘using’ the computer it reminds me of a bee. Another thing but not so important is to upgrade to a 4K-monitor, but currently my 20″-monitor does his job very well.

6 thoughts on “New Workstation: PowerMac B&W G3 Hackintosh”

  1. Hallo Andre,

    ich habe selbst zwei G3-Gehäuse an der Strasse gefunden und möchte eines der Gehäuse auf “PC-Hardware” umrüsten. Dein Artikel macht schonmal Mut, aber es wäre wirklich hilfreich und sinnvoll, wenn Du die maximalen Mainboard-Masse (ca.) ergänzen könntest, ich für meinen Teil würde ungern ein 10%-Board erwischen :).

    Schönen Gruß aus der Eifel und vielen Dank für den Artikel,

  2. Hi Dirk! Schön, dass du auf meinen G3-Casemod gestoßen bist 🙂 Ich werde bei Gelegenheit die genauen Maße hinzufügen, glaube mich aber zu erinnern, dass sich knapp eben nur ein Micro-ATX Board reinpasste. Übrigens, schnell wirst du feststellen, dass der “Plastikbomber” quasi ein Gewächshaus ist: Entweder verbaust du Komponenten die Kaum Hitze entwickeln, oder du erweiterst wie ich das Gehäuse noch mit einer Wasserkühlung und äußerem Radiator, damit die Hitze entweichen kann.

    Viele Grüße,

  3. Hi Andrè,
    i also wanted to build a pc in the case of a powermac G3. Do you think that fan-cooling is not enough?

  4. Hi!
    Nice that people still like the idea : )
    It is possible of course. However it depends on the hardware and the tasks you are planning to do there.
    The Intel i7 and my graphics are producing still some heat and for me the boxed fan was not sufficient.

    However, after that workstation-built I also used mainboards with integrated CPUs. Those ones are usually not producing so much heat and would fit better in there.

    Hope that helps,

  5. Hi Andre,

    I « dream » to build an Hackintosh with an old Blue & White PowerMac G3 Box as you did, to work mostly with audio/midi softwares (I’m musician), and make sometime some simple videos with Final Cut Pro. Yours is so nice… !

    I’m new to the Hackintosh world, but I already have made some programming and so like stuff in the past, so I’m not afraid to jump into this amazing world.

    I have read many pages on this site, I tried to follow the guide that can be found here : for choosing the component to buy.
    I need some help to know if I don’t make any mistakes.

    The Motherboard :

    If I understand well, the old B&W G3 only support mATX motherboard, so I choosed this one : Asus TUF Z390M-PRO GAMING

    The Processor :

    I hesitate between the Intel Core i9-9900K and the Intel Core i7 9700K

    Is there any difference regardless the power ?

    Graphic card : Sapphire RX 580 Pulse 8GB

    SSD : Samsung SSD 860 EVO 2.5″ (1 To)

    But, is it possible to use the Hyper M.2 X16 PCI card ?

    CPU Coolers Thermaltake Slim X3 Low Profile

    PSU : Corsair CX-M 550 Watt

    RAmM : Crucial Ballistix Sport LT BLS16G4D240FSB 2400 MHz, DDR4

    So, thanks, if you can tell me if there is something wrong.

    Best regards to you all, and take care.

  6. Hi Stephane!
    Your specs look promosing and indeed I planned initially as well to use it for my DAW. During the time I can say that it worked, but the Hackintosh was never as stable as any Mac I was used to. Keep that in mind. And what I read/heard from other Hackintosh-users is that you can be lucky or not with having a stable system.

    However if this is fine for you, then go and implement your dream 🙂 I am still proud of the hardware build but use it now as an Ubuntu-based 4k-screen Workstation. For my music-stuff I clicked trashcan-MacPro on eBay since you get those ones quite cheap these days on eBay.

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