[G4] G4 Power Supply

[Luke Rademacher]

Most of these older G4 Towers were only specced to handle 2 HD's.  
Hence the Power Supply has enough power connectors for the Zip and  
Optical and a main Hd and a slave.

Beyond adding video card or other card, you are going to drain out  
your Power Supply trying to add more internal devices.  You can use Y  
adapters but more power drain from your system the less the  
performance will be.

And no Power supply from a higher end model won't help. Quicksilvers  
and MDD PSU's are meant for their respective systems.

If you are really gung ho however, You can rig an ATX Power supply to  
run your G4 AGP model. There is a page called www.xlr8yourmac.com  
there is an older link for converting ATX PSU's to work on various  
Mac models. If you are comfortable with a Soldering Gun then go for it.

FWIW, if you want more HD space why not add externally? External HD's  
often have their own power and attach via FireWire.

Peace,

Luke Rademacher
Liquid Zone Graphics
Mac mini 2.0Ghz Intel Core 2 Duo, 3GB RAM, 80GB HD, Combo DVD/CDRW,  
Mac OSX Leopard 10.5.4, ext NewerTech miniStack w/ 320GB HD.
MDD Dual 1.25Ghz G4, 2GB RAM, 250GB/120GB/80GB HD's, 16x DL DVD±R/RW  
Superdrive, Mac OSX Tiger 10.4.11, Classic Mac OS 9.2.2.
Intel Celeron 2GHz, 1GB RAM, 80GB HD, Ubuntu Linux 8.04
5.5th gen 80GB Enhanced Video iPod
Canon CanoScan 8400F
Canon Pixma iP4500

On Sep 22, 2008, at 12:46 PM, shopdog at mac.com wrote:

> All:
>
> I have an AGP Graphics machine (model M7824LZ/B).
>
> It's upgraded with a 1.2GHz Sonnet processor.  It has a Pioneer  
> DVR-105 in it, and the original Zip drive.
>
> Does anyone know how many internal hard drives it will support,  
> power-wise?
>
> It has 4 power ports on the power cable for hard drives, and I'm  
> using 2 of those for 2 hard drives on the original IDE bus.
>
> Will the existing power supply support 4 more IDE drives?  I can  
> get them in the chassis using 2 "Dual Drive Bracket"s, one each in  
> drive bays 1 and 2, and I can get them to communicate with the  
> motherboard via a PCI card (ACARD AEC-6280M) that has 2 IDE ports,  
> but the only way to supply power to these four new drives is to use  
> Y-adapters off the remaining 2 power ports.
>
> However, I don't know if the existing power supply will support all  
> of this.
>
> If not, can I use a Quicksilver 344W power supply instead, in this  
> machine?
>
> Thanks for any advice anyone has...
>
> shopdog
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