Adding power supply to power mac 7300/200

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Joined: Apr 9 2004
Posts: 11

I was wondering would it be possible to add another power supply to a power mac 7300/200. Maybe just a small extra battery to add some cathode lights and fans i have planned for a mod.

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g3head's picture
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Joined: Dec 20 2003
Posts: 213
You're probably fine as is

Unless you've maxxed it out to an unknown extreme you can probably put tubes and such in without a huge risk of releasing magic smoke.

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Joined: Dec 20 2003
Posts: 354
A look at the Apple tech docu

A look at the Apple tech document shows the original PSU rated for 150W. I put a watt meter on my 7300 (two hard drives, three PCI cards), and the most I could get it to use was something like 80W. So there's some room for extra stuff. Don't honestly know how much cathode tubes use though.

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Joined: Apr 9 2004
Posts: 11
works fine

I was suprised to find it worked out fine with two cold cathodes and two uv fans. A pc i tried to install a cold cathode in wouldn't power up with one extra fan and a cold cathode and that computer had a 350 watt power supply.

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Joined: Dec 20 2003
Posts: 851
CCFL

Most cold cathode system us 3-5W per 12" tube. 4" tubes are under 1 watt. If your PC didn't power up, it was probably shorted out, not overpowered. Otherwise it would have failed as soon as the CPU did any number crunching at all.

Dr. Bob

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