New Computer won't start, high pitch noise from PSU Please help!

superroflcake · Jan 4, 2014

I have a new Thermal Take TP-750 power supply along with all the new parts for my computer. I got everything setup and the computer won't start. Whenever I hit the power button, my PSU starts making this moderately loud whine. I don't know what is causing this, but I'm sure it's not the fan, because it doesn't even start, neither do the other fans in my machine. This is my first time building a computer so I just want to know if I messed up or just got unlucky. Please help me!

killerhurtalot · Jan 4, 2014

Unplug the PSU from the PC. Do the grounding trick with the paperclip on the 24 pin and see if the PSU boots up.

And if it's a loud whine, might be a faulty PSU.

alyoshka · Jan 4, 2014

First of all, you need to check step by step if all the cables coming out of the PSU are plugged into their respective sockets on the the Mobo, GPU, HDDs,ODD,SSD,FD, and 4 or 8 Pin ATX Power socket.
Then you need to see if the Buttons of the Case are correctly connected to the Mobo Header....
Check all and recheck and let us know. Pics would be a lot more helpful.
If everything is OK, then check and see if the PSU is set to the right voltage,(Some PSU's have a switch at the back to set output voltage in case of SLI/CF setups and also switches for 110/220 V input) check to see if it is set at the correct notch.

superroflcake · Jan 4, 2014

killerhurtalot :

The whine is pretty dang loud. I can hear it from across the room. Also, what is this grounding trick you speak of?

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New Computer won't start, high pitch noise from PSU Please help!

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