ATX Power Supply - Help!

[mediter]

My motherboard can be used by either an AT psu or an ATX. It came with an AT PSU, but the tower is meant to be ATX (as it says on the list of items when I bought it). Now I have just bought an ATX PSU from ebuyer but it appears to me there is a missing wire - that goes for the switch, hence, I cannot switch it on. There is the multi pin plug which goes in the mobo (ATX connentor), 2 pins for the floppy type and 4 for the HD,CD-R etc.

Should there be another wire for the switch? The reset switch on the case is there, connected to the mobo. After connecting everything, and leaving the switch on the case empty, no power came through as I expected.

Is the wire missing or am I missing something myself here? I am baffled why this is not straight forward. :confused:

Many thanks for your help.

mediter

[Betty Swollocks]

With atx power supplies, providing the 12 pin (or whatever it is - the big one) is plugged into the mother board, then all that is needed is the 2 pin plug off the cases power switch that plugs into the bezel thing on the mobo.

This is because as long as theres power going to the PSU, there's a tiny amount going to the mobo as well, This way it can detect when the momentary power button is being presed, and basically tells the PSU to pwer up.

HTH :)

[TNT]

You are not missing any wires on the PSU but the "soft" switch which goes in place of your power button on the case and is connected to 2 pins on the mobo (usually next to or near by HDD an "Power on" LED pins). "Soft" switch is a push button that you need to press in order to power up a PC.

[mediter]

Thanks Betty and TNT,

I found the 2 pins were the switch goes on to the mobo. I need to buy this soft switch now.

Does anyone know where I can get this from? May be someone of you works with computer firms and have easy access to them. Please let me know in order to have a full functional ATX Case.

Thanks before hand.

mediter

[TNT]

I have found one on dabs for £3 + VAT but don't know if it's ATX one. Might be worth giving them a call. You could also visit your local boxshifter of a good electronics shop and see if they have it.

[mediter]

Thanks TNT. I contacted dabs and am waiting for them to get back to me via email because no one at the help desk knew.

mediter

[TNT]

If there is a computer fair somewhere near by this weekend pay it a visit. You will be surprised what you can find there.

[mediter]

Unfortunately the switch is not for an ATX mobo (dabs.com), hence I am still hanging without one. I will try my luck in a computer fair in the next two weeks.

Meanwhile if someone is lucky to find one please let me know. I have already phoned a few on line companies.

mediter