Originally posted by: Keitero
Take the Gateway, and remove the mobo, old drives, and power supply, then replace the power supply with an Antec True550W, and the mobo with a 925X, and the CPU with 3.6 GHz or so C. The downside is you'll also have to replace the RAM. That should make "This Old Gateway Case" scream! =]
HAHAHA funny. :|
Well... considering I got the machine in 98, that two year thing (even if I was on it) is long dead.
Well I am going to see if i can get a cheap Pentium III 450 and put that in.
Hey, don't knock it! That's exactly what I did for a co-worker of mine. She didn't want to spring for a new case, and I happened to have a decent PSU that I gave her. I ended up putting in an ECS intergrated board in it (the one with a soldered-in mobile AthlonXP). She just needed something that was faster at web surfing, and word processing than the PII-300 she had.
If you want to try and shoe-horn a new motherboard in it, here's what you have to do. BTW, you WILL need a dremel, an electric drill, and a pop-rivetter with some rivets.
The I/O panel at the rear is probably non-removable. You're going to need to drill out ALL the rivets holding the back of the case together, so you can get in there with a dremel. I traced out the dimensions of the new plate cover, and cut it out. Use the fiberglass wheels for this. The emery wheels wear out too quickly.

Put everything back together with the pop-riveter.
You won't be able to just slide a new PSU into the case either. The cutout at the rear is too small. Again, use a dremel to open the hole a little wider. You will need to drill new screw holes so that you can secure the PSU to the case.
Once that's done, clean out the metal bits, and you're ready to go.... almost.
The LED leads aren't standard on that case. You're going to have to either pillage a wiring harness from an older case, or you can just remove the individual connectors in the harness and wire it up accordingly.
After about three hours of work, you should be ready to put in a new motherboard.
Alternatively, you can cheat and just go to your local shop and buy a new case for $35.

Of course that's not as much fun as messin' around with it yourself.