Converting an old Dell Optiplex to ATX...possible??

[scarfase99]

Ok guys, i got my hands on an Old Desktop Dell Optiplex GN+ & wanna use the desktop case for my ATX Motherboard & 750MHz Thunderbird. It's a very strange lookin case, with an even weirder inside. The motherboard has a riser, and the front power/reset buttons connect with some weird looknig thing, while the power supply has what seems to be ATX connector, but also something else that connected to the motherboard. Now, i haven't gotten my ATX Board yet, but wanna know A) If it'll fit & B) How much modding i'd have to do to get it to work C)Do i need to use a different power supply

Here's a diagram of the inside

Motherboard Diagram

Service Manual (in PDF..Rather LARGE)

Thanks in advance. Also, if anyone knows a cheap place to just BUy an ATX Desktop Case, i'd be much obliged.

 

[SpaceRanger]

I doubt you'll be able to do anything with that case since it uses a riser card for access to the expansion slots. You're better off just getting a new case.

 

[Neuroanatomist]

I just surplused something like 65+ of those old Dell Optiplex Gx desktop cases at work in a recent department-wide upgrade.

I had to work on them for three years, and I think it might be difficult to make the Dell desktop case work with "standard ATX" hardware.

I'm not sure.. but if I remember, I don't think that the PSU with the Dell Optiplex was ATX 2.03 compliant. also, since these Optiplex Gn were made for Pentium 166-233, they probably have a low wattage (maybe 150W or 200W)

You would be better off down the road with a new desktop case. They should be $35-$45

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