Replacing AT Power Switch w/ an ATX Switch..help

[musak999]

My old case had an AT power switch, which is now disposed of. I want to replace it with an ATX one so it'll work with my ATX board. Anyways, I did a search about this topic. I read that I should buy a momentary switch from Radioshack so I went there today but I couldn't figure out which one to get; the Radioshack employee wasn't much help either. Anyways, could u guys take a look here and tell me which one I should use?

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When I was looking at these switches at Radioshack, I also noticed that it's only the 'top' (???) part, it's only the switch, not the part that you connect to your mobo. What do I need to buy to connect one of these switches to my mobo do I can get my computer to work? The switches have 3 prongs on the end if that helps.

THANKS!
:beer:

 

[Mday]

ATX power supplies uses a momentary switch which is attached to the motherboard, not the power supply itself. AT powersupplies use a plunger standard switch (not momentary) which is attached to the power supply.

Please elaborate as to what you want to do.

assuming you have an atx power supply, you can use any momentary switch you want. SPST is what you're looking for. all that is required is a temporary shorting of the proper lines for the computer to turn on. any momentary switch will do. i suppose you should take some measurements, and see which switch physically fits to your case. remember, it's SPST that you need. it has 2 contacts.

 

[deerslayer]

Are you still planning on using the AT power supply?

Changing the power switch will not make the AT power supply work with an ATX motherboard, in case that is your intent.

As Mday say, any momentary switch will do, all you need is something to short the pins.

 

[StarTech]

Not too long ago I rebuild a mini AT box, replacing the mobo with the fastest dual AT/ATX PS board I could find and replacing the AT PS with a new ATX.
I had to replace the switch. There was some dremmel work involved in fitting the ATX PS.

Note that the motherboard has to be able to support the ATX type PS. There are a few motherboards that do so. by having two different power connectors.
If that ffits your situation finding the switch is possible. There is a version out there that is mechanicalli identical to the most common old switches. Here

here

 

[scdill]

I wonder, if you were willing to give up the reset button, if you could just run the cable from the reset switch to the power switch connection on the motherboard. Maybe a turbo button (if its momentary)? Any other buttons on the case?

 

[boyz]

get a new system if you can afford it.

 

[musak999]

Okay, I think I wasn't very clear the first time. One of my leftover cases, which had a AT PSU, also supports ATX sized mobos. So, I decided that I'm going to use that tower for my new comp. I took out the AT PSU and AT power switch and now I need a new ATX power switch to connect to my new mobo. Which one of these switches should I get? Or are they all the same?

http://www.radioshack.com/category.asp?catalog_name=CTLG&category_name=CTLG_010_007_001_000&Page=1

I don' t know how to link. Okay, also, what do I need to buy to connect the power switch to the mobo? Wires, cables? What kind and where can I find it?

Thanks.
:beer:

 

[Jhhnn]

You need a momentary contact normally open switch, with attached leads and terminals. same for the reset button. these guys sell 'em and a lot of other parts-

http://www.addtronics.com/

Click Order, then Parts...

 

[Zepper]

As one of the responders here said, you can use the reset button switch as your on off switch temporarily. It is usually the exact same type of switch as the ATX power switch.
. Just connect the wire from the reset switch to the power on/off pins on the front-panel header (on the mobo). If you are not up to soldering, you should buy a complete switch assembly with the wires already soldered to the switch and the header connector on the other end.
. You should be able to get one from a local computer shop that does any amount of repair work at all. They should have some in their scavenged parts bin. Else call a case distributor. It has been fairly easy to work with the people at Enlight (www.enllightcorp.com). Just call them (get phone no. from web site) and ask for a power switch assembly for "YOUR" 7237 case. It should fit most others.
. And, if you request it, they will ship it to you by 1st class mail which will save on shipping but you have to take the risk of loss/damage. I just bought some 5" drive rails and bay fillers a couple of weeks ago for less than $10. shipped.
.bh.
:moon:
p.s. More details on the addtronics site. Click on Order - then Addrtonics Parts - the one you want is the power switch for W8500/W8600 (go to the end of the line it's on and you can click to see that it's similar to your current power switch). That's probably the most common type of ATX switch out there (it's just like the one Enlight uses) and it is also used as the reset switch for most ATX cases.bh.