New build, starts for .5 seconds, shuts off, no cycle.

[ask83r]

I decided to build a new PC because of my old one just being still the hardware from the beginning of XP.

When I got it all built up, and hit the power button it turns on for maybe .5 seconds and immediately shuts off, the fan spins once, lights light up, but as I stated it immediately ends.

My build I purchased was

Motherboard : MSI z97 mpower
HDD's : two black WD 1tb & 350gb
RAM:G.Skill (says compatable with z97 right on the front) 2*4gb
CPU: I5-4670k LGA1150 (fan on top w/ thermal paste)
Graphics : None, hoping theres onboard basic graphics.
Audio : I know theres onboard audio
Optic drive : Asus dvd drive
Power supply : older, what I'm seeing is that it has jpwr1 pin plugin, but not jpr2 3 or 4 plugin pins being 8, 4 , and 6 pin respectively. (squared, not lined)

 

[dave_the_nerd]

Link to power supply specs please.

Probably insufficient power, or a short. Plug in just the motherboard, RAM, CPU, and heat sink/fan. See if you can get that to power up to the BIOS. If you can test them on a bench, rather than installed in the case, that may be a good idea too - they could be shorting on the case. It happens.

Do you have the auxiliary 12v connector plugged into the motherboard? There's a couple near the cpu socket, you should have a corresponding lead from the PSU plugged into one of them.

May just need a shiny new PSU.

 

[DesiPower]

Link to power supply specs please.

Probably insufficient power, or a short. Plug in just the motherboard, RAM, CPU, and heat sink/fan. See if you can get that to power up to the BIOS. If you can test them on a bench, rather than installed in the case, that may be a good idea too - they could be shorting on the case. It happens.

Do you have the auxiliary 12v connector plugged into the motherboard? There's a couple near the cpu socket, you should have a corresponding lead from the PSU plugged into one of them.

May just need a shiny new PSU.

This?