PSU always on

[gamz247]

I'm currently attempting to put together a system using parts gleaned from 2 old systems of mine, but I'm running into a problem now that everything is assembled. I finally plug the power supply in and turn it on and the whole system just comes to life. Pressing the Power and Reset buttons on the case has no effect. I took the PSU out of another case, hooked it up and the same thing happened. I even took the faceplate off that case to try its Power and Reset buttons, but there was no difference.

Here's the parts in the new system:

Asus A8V
AMD Athlon 64 X2 4400+
ATi Radeon X1650 Pro
160GB Seagate Barracuda 7200.9 SATA HDD

PSUs:
Antec TruePower 330
Antec SmartPower 400

Cases:
Antec CS200
Antec 1040BX II

Any idea what the problem could be here?

 

[dK`_unlimited]

start from nothing and go from nothing..

check your motherboard manual and look at the front panel connectors..see which ones are the + and which are the -

for the connectors them selves color is positive white/block is ground or negative.


if this isnt a problem then only plug in the cpu,mobo,ram,video and see if it stays powered down. if it does work your way up to see what is causing it.