Starting a power supply?

[wschalle]

How do I run a power supply safely without the motherboard? I want to test my WC loop before I assemble everything.

I have heard that shorting pins 14 and 15 will turn it on, but could damage the PSU.

[Steve B]

you can short pin 14 with one of the ground pins.
Thats green to any black.
However, thanks to bsodmike for pointing this out to me before:
PSU's are switch-mode, meaning that they should be loaded when in use. An unloaded PSU can incur damage.
An 11ohm, 5W resistor should handle it apparently.

OK so most PSU's have a PFC stage, which means that damage shouldn't happen if the PSU is unloaded and you turn it on.

[wschalle]

I'm going to be running a MCP655 on it, which is over 20W i think.

[Steve B]

yep, green to any of the black pins will start it