[louisreiff]

Corsair tx750 power supplie how can I tell if it is any good. I am just building my first gaming PC from scratch and I don't get anything when I try to power this machine up. any help? how can I test the PSU?

[Hybr!d]

The only real test is to plug everything in and power on.

Essentials are mobo, cpu, RAM, GFX card, PSU, monitor.

Leave everything else disconnected/removed, DVD, hard drive (data and power), sound card, network card, mouse etc.

Try that.

[louisreiff]

thanks I'll try unplugging everything but the essentials

[Hybr!d]

I take it the lead from the power button on the front of your case is connected to your mobo?

[louisreiff]

yea the lead is connected. I did the above and now I am getting a short burst (1-2 sec,) on the CPU fan and a green light on the mobo so I guess my PSU is ok. Now i just can't seem to get a BIOS screen up

[Hybr!d]

Nope, dead PSUs commonly power the LED and fan for a few moments.

It's going to be that or the mobo, PSU being the most likely so swap that first.

[thingie2]

Yea, swap the PSU into another PC, or get the PSU from another PC into that one, it's the easiest way to check.