AT to ATX conversion

[Toby]

I was reading through some old posts on this site and come across a subject I would like to know more about. The poster mentioned an AT to ATX conversion. Is this availible? posible?

 

[Mr B]

It depends on wether the backplate (where the I/O ports are) can be modded for the ATX format more than anything. If so, going from AT to ATX is a breeze.

Pull out the old AT PSU, and attached power switch. Replace the switch with Radio Shack P/N 275-646. I used this with my old AT case, and it uses the same diameter hole the AT switch came out of (no cutting....=) ) You'll need a lead to attach it to the mobo...I used a reset switch lead from an old AT rig that wasn't "convertable". Keep an eye out on the side of the road for an old box someone's throwing out, and cut all of the leads from it..I did. Just solder the lead to the switch (doesn't matter which wire goes to which terminal on the switch, BTW...) Actually...if your AT case has one of those "Turbo" buttons....cut the lead from that switch, I just looked at one of the AT boxes I've got that isn't convertable..it would work too. so would any of the LED leads....

Nice part about the switch was it rises above the front of the case very slightly, and I was able to use the original power button on the front bezel with it...

If you can cut the back for the ports, and get a lead for the switch I mentioned, you're good to go. Modding the back panel for the ports is the tough part. If you can, great. If not....it would be easier to just get a new case.

 

[stool]

I have done this, and as Mr B more or less said, unless its a really great case, it isn't worth the trouble. I used an older, very heavily-constructed fulltower server case that appealed to me. I rewired the whole front panel, but had to construct a power button. I bought heavy guage sheet aluminum and made a new back panel from the PSU to the slots, and cut the AT pattern slots out. As I had a rather battered ATX case, I cut the slot panel off it and used it for the modification. I then had to correctly site the motherboard to align with the slots, and epoxy standoffs to the case. everything ended up turning out well, but if I hadn't had a lot of the stuff I needed already, it would have turned into an expensive proposition. It was very time-consuming, and I don't think I'd do it again.

 

[adamtekh]

yeah i ive done this

it makes for a bulet proof case thats for sure

just whip out a dremal and cut away

 

[JFettig]

i bet if you cut the rite hole you could use a mobo tray! just cut the rite size and stick the mobo tray in! ill do that someday.....