Contribute
Register

G5 Fans

Joined
Oct 2, 2020
Messages
3
Motherboard
original powermac G5 late 2005
CPU
Power PC Dualcore 2GHz
Graphics
6600 LE
So it's my first ever g5 conversion, and so far it's been an interesting process. However, I'm fully unable to get the fans spinning on my atx. I've looked at every single wiring diagram out there and tried everything but I just can't figure out what's wrong. Any help is greatly appreciated.

Cheers!

PS: I'd like to know if there's any way of making them work without a fan controller, regardless of the noise levels.
 
Joined
Sep 9, 2010
Messages
388
Motherboard
Asrock Z490m pro-4
CPU
i9 10850K
Graphics
Vega 64
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
So it's my first ever g5 conversion, and so far it's been an interesting process. However, I'm fully unable to get the fans spinning on my atx. I've looked at every single wiring diagram out there and tried everything but I just can't figure out what's wrong. Any help is greatly appreciated.

Cheers!

PS: I'd like to know if there's any way of making them work without a fan controller, regardless of the noise levels.
These fans aren't ATX compatible despite the connectors looking similar.

check out this thread if you haven't already. https://www.tonymacx86.com/threads/g5-power-hack.18370/page-3

You can use a resistor to slow down the fan speed.
 
Joined
Oct 2, 2020
Messages
3
Motherboard
original powermac G5 late 2005
CPU
Power PC Dualcore 2GHz
Graphics
6600 LE
Joined
Aug 19, 2018
Messages
42
Motherboard
Gigabyte X58-UD3R
CPU
X5670
Graphics
GTX 970
Meh, don't worry bout the delta fans. Swap them out for white 92mm standard case fans instead. Heck, I bet the grey noctua ones would go quite nicely. If you wanted to get fancy, you can cut the new case fan wires and solder them back up to the black plug on one side. Then solder the standard motherboard header sides back on the other. It seems a little daunting at first, but you can retain the removable function that way.

Did mine like that the first time. I used Arctic ones back then.
 
Joined
Dec 23, 2019
Messages
1
Motherboard
I didn't
CPU
read the
Graphics
Rules!
Hi, the original Delta fans draw 0.6 A current. The most mainboards deliver only 1 A per fan connector. So it is not stable working with the dual fans for CPU cooling and in the top of the case.
To keep the original look I've disassembled the Delta fans and swapped the inductors with the ones from Noctua fans. This works very well.
 

Attachments

  • replace_fan_inductor.png
    replace_fan_inductor.png
    3.2 MB · Views: 11
Last edited:
Top