Power Supply Will Only Turn On With Paperclip Trick (Does not turn on any other way)

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Hello all, recently I have completed my custom built gaming computer, I attempted to power on my computer (using the case power button) and it did not turn on, no fans, no leds, nothing (no bleep codes either). However when I use the paper clip trick, (using the tool the company I bought the supply from) the device powers up. I would like to know how I can resolve this issue. Have I put some cables in incorrectly? Or are there issues with my devices?

Thanks-
Mason
 
Check you have both the 8pin and 24 pin MOBO power connectors connected - sometimes people forget the 8pin ATX socket if they install the Heatsink first :) - Re the Power button Switch; shouldn't matter which way its connected - just make sure it' actually connected to the correct socket on the MOBO - i.e. PWR-SW and not PWR_LED or some such - if your case came with a preconfigured front panel socket to plug into the MOBO, make sure it matches the pin layout on the MOBO.
 

I have checked my motherboard, and there is no 8 pin ATX connector, should I clear the CMOS?
 
 


Parts are:
Intel Core i5 4460
EVGA GeForce GTX 75 TI FTW
ECS H81H3-M4
16gb. Crucial DDR3 Ram 1600 mhz.
EVGA 500W Bronze PSU
Fractal Designs ARC MIDI R2 case

I will do the breadboarding technique.
 


You need to post your Hardware specs - I'd also suggest unplugging all the power and front panel connectors and redoing just to make sure you haven't crossed something. Check each lead as you go and make sure they are properly connected - by check, I mean check the pins are not bent, shorting or have been damaged or pulled our of the socket - especially on the ATX power connectors (24pin and 4 or 8pin CPU power)

Also, you don't actually need to connect the power switch as such - if you can get to BIOS, you can set it to power up from a keyboard instead on the off chance you have a faulty power switch (providing you can get to BIOS of course)

If you can get to Windows, go to the Power profile and set the Power Button to Shutdown - then see if the Power button will shut the PC down.

Basically you need to determine if it's the PSU, MOBO or Power Switch that's the problem.

Oh and one other really, really basic thing! - did you mount the MOBO using Risers off the chassis? If not, in all likelihood you've shorted out your MOBO on the Chassis.
 

Ok, so I have begun the process of breadboarding, I have the 4 pin ATX connections in the CPU power leads, the 24 pin MOBO power connections in their respective leads, the supply is plugged into the wall, I have the POWER SW from the case, going into F_PANEL, when I turn on the supply nothing happens, when I turn the computer on from the case button nothing happens, as I stated earlier I can only turn the PSU on with only the paper clip trick.
Is it possible I have a bad power supply?

Specs are as follows:
Intel Core i5 4460 3.2 ghz.
EVGA GeForce GTX 750 TI FTW
ECS H81H3-M4
16 gb. Crucial DDR3 1600 mhz.
 


Can you post a pic of the front panel connection to the Mobo - I have this nagging feeling you've got the button wired incorrectly - Also what brand and model is the case?
 
the case button which is just an open close momentary switch so you can try to activate by simply shorting out the power terminals on the mobo momentarily with a jumper or metal object but be very very careful as to what you touch and make sure you know which two pins you need with 100% certainty but according to newegg.com pic its pin 6 and 8 which are the top two pins on the right side there will be a "dead pin" or a missing pin to the right of the two you want
 

Ok, this should give you all an idea of my breadbording.
I will try to put the connectors on pins 6 and 8
 

Ok, thanks, I think I may have overlooked this in my manual.

 

I need to check my manual, does it matter which set of pins the front panel connections are on? On my motherboard there are two sets of pins, does it matter which ones they get put on?

 

Upon looking in the manual I have put the correct connections on the correct pins. Still no activity from PSU or or MOBO. And yes there is only one F_PANEL, I confused it with the COM ports.