ATX power supply in an A4000

[Rigger]

Since no one was interested in buy/trading my A4000 the upgrade bug has hit me again. Currently I use 2 power supplies for a total of 385 watts. I'd like to replace this with just a single 450 - 500 watt ATX power supply.

The A4000 pin-outs are;

1 - Orange (+12v)
2 - Red (-12v)
3 - Brown (Power Good)
4 - Yellow (+5V)
5 - Blue (Ground)
6 - Blue (Ground)
 
"Power Good" is a TTL output from the power supply, a logical high indicating a stable power supply.


ATX Power pin-out shows the pin-outs for the ATX power supply. Which pi-out on the ATX power supply would satisfy the "Power Good" requirement of the A4000 power supply?

[Rigger]

So if pin 14 is perminantly attached to ground the power supply would be "on" all the time?

That would mean the the on/off switch usually on the back of the ATX power supply used to actually kill the power could be used to control the power to the system? Or possibly be rewired to a normal botton at the front of the unit.