Technical help with a power supply.....

[smearyllama]

So, as my many threads lately have pointed out, I'm enjoying building my PC.
I'm done, but I'm running into issues with the damned thing turning on.

I've got it plugged in, and the power supply seems to be receiving power, but neither the switch on the power supply or the chassis will get it to turn on.

Is this because I didn't use the LEDs on the case, or am I just clueless?

 

[smearyllama]

No help?
C'mon...

 

[Aitur]

It shouldn't make a difference if you don't attach the LED's but, and please forgive me if this is a stupidly stupid question, did you at least attach the chassis power lead to the mobo?

If so then you could possibly have a short on the Mobo which could cause it to refuse to turn on, check that the chassis is only in contact with the mobo at the screw points.
Also check the power supply leads are all connect securely to the mobo, and if possible try a different powerpack in the system or your powerpack in another system to make sure it's not faulty.

 

[smearyllama]

It shouldn't make a difference if you don't attach the LED's but, and please forgive me if this is a stupidly stupid question, did you at least attach the chassis power lead to the mobo?

If so then you could possibly have a short on the Mobo which could cause it to refuse to turn on, check that the chassis is only in contact with the mobo at the screw points.
Also check the power supply leads are all connect securely to the mobo, and if possible try a different powerpack in the system or your powerpack in another system to make sure it's not faulty.

Yeah, everything is attached, and I guess we can retry plugging things in.
I hope it isn't the power supply though.
That's gonna be a pain to replace.

 

[Aitur]

Yeah, everything is attached, and I guess we can retry plugging things in.
I hope it isn't the power supply though.
That's gonna be a pain to replace.

Unfortunately jiggling plugs is about all you can do unless you can test the power supply separately from the rest of the system.
But check the plugs and check for shorts, also check to see if the mobo has any onboard standby lights that should be on, or if the mobo is getting power the cpu fan will normally do a quick spin even if it immediately shuts down, this will indicate if the power is reaching the board.
Worst case is that it's not the powerpack and it's the mobo itself, THAT's the pain in the ass to replace.

Sorry but that's all I can think of at the moment.

 

[crimson5pheonix]

Yeah, the only way to know for sure what the problem was is if you can test the power supply separately. You would either need an expensive testing kit, or a second computer.

 

[smearyllama]

Yeah, the only way to know for sure what the problem was is if you can test the power supply separately. You would either need an expensive testing kit, or a second computer.

Well, we have an old Dell lying around somewhere.
We might be able to work with that.

 

[crimson5pheonix]

Yeah, the only way to know for sure what the problem was is if you can test the power supply separately. You would either need an expensive testing kit, or a second computer.

Well, we have an old Dell lying around somewhere.
We might be able to work with that.

As long as it has the same type motherboard as your power supply (the power supply is probably ATX). And make sure the main connector has the right number of pins (If you got a power supply with 20+4 pins, it will almost definitely work).