kelman

I am looking for some advice on upgrading a cube, I have a 450mhz cube and a friend with an mdd 1.25ghz he knows has a toasted psu that he is willing to give me. Bus speed aside and the assumption the 300pin daughter card is the same on both, could I theoretically do this cpu upgrade and/or would it run? I know the heat would be an issue but didn't they make upgrades for these in the past. If this won't work what is the fastest cpu upgrade I can expect? Thanks guys.

Chimpur

I'm not entirely sure; but I seem to think the more powerful CPU would require a more robust PSU... also; I'd assume that you might want to run a better GPU if your modding the Cube as well. Which will also require more power.

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imactheknife

I am not sure if a G4 1.25 will work, but I upgraded mine to a dual 500 G4 with an upgraded video card.

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kelman

thanks guys, I have my doubts it will work but I had to ask.

Mike457

You might take a look at http://www.cubeowner.com There are a lot of people there who could let you know. I have upgraded the CPU on a Cube before. The VRM is delicate. Because of the power supply and heat issues, I'd be reluctant to try modifying a Cube with anything but a Cube-specific CPU.

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kelman

Thanks for the link Mike, looked around and found most posts about upgrading were old and everything pointed to the aftermarket kits no longer available.
I think I am going to wait it out until I can find some time to swap in the 500 that came with the deal.

Mike457

If you do post to the site, Kelman, there are active people who have done upgrades and can answer your questions. They helped me when I replaced the DVD burner in mine and replaced the hard drive with an SSD.

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kelman

Thanks! I didn't think of that, I'll give it a whirl.

smashedbanana

Back in the day I had a G4 Cube and upgraded it to a 1.25ghz
I purchased the sonnet kit (was like $600)

Howerver, 2 things

1 - you need to add a fan in the base. Sonnet included the fan in a G4 upgrade gube kit. It's a 80mm x 80mm x 15mm fan. The power connects to the hard drive power connector. You can get these easily.

2 - bus speed. The g4 cube is 100 bus if i recall. Maybe 66? It limits what cpus can go in. That G4 MDD cpu is likely 133 or 166 or something. Your safest bet is to get a cpu upgrade made for the cube. There were several (newertech, sonnet, etc.)

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