Is power supply working?

[Nildey]

Anybody know if power supplies work even without a MOBO installed? I am modding my new rig right now and wanted to try out the lighting in the case without the MOBO installed...none of them work....

Any idea?

[flyingember]

nope.

modern power supplies are controlled through the motherboard.
you press the switch and it makes a connection on the mobo. a signal is sent to the power supply which turns on.

if there's a physical switch on the back that only turns on/off power getting into the supply

theres actually a wire on atx supplies which is only used for turning the supply on/off.

[stompah]

Originally posted by flyingember
nope.

modern power supplies are controlled through the motherboard.
you press the switch and it makes a connection on the mobo. a signal is sent to the power supply which turns on.

if there's a physical switch on the back that only turns on/off power getting into the supply

theres actually a wire on atx supplies which is only used for turning the supply on/off. lol last part is right but first part is way wrong...

jump the green wire to a black wire on the motherboard connector.


Also wrong forum.

[flyingember]

if you haven't done that yet I should warn you:
that different manfacturers sometimes color their wiring differently. one black wire can be different than another (I have seen this with different supplies in the past 6 months)
that dell does it entirely differently (at least for a while, not sure about now) with their wiring. you have to hand redo a reg atx supply to work on a dell board for example

and if you do do this, be sure you don't use bare wire and electrocute yourself.

[Nildey]

thanks guys