PC wont turn on. Fans spin briefly but then stop

[simondodd]

OK so I have cobbled together a machine with a supernova Nex750G power supply, Asus Sabretooth 990FX Rev2 MB, and a R280 Sapphire graphics card...

The machine will boot to the BIOS or a USB bootable windows installation fine but when I plug in a hard drive the machine will not turn on. The fans all spin for a second and then it just stops. I have to unplug the power supply from the wall and then plug it back in to get it to boot. It's a brand new SSD drive as well so that isn't the issue. Any ideas...?

 

[Sammyjo20]

Is your power and sata cables connected to the mother board and psu?

 

[simondodd]

Power cables are connected to the MB and VGA cables are connected to the graphics card. SATA cables are also connected to the SSD

 

[Sammyjo20]

Power cables are connected to the MB and VGA cables are connected to the graphics card. SATA cables are also connected to the SSD [

Have you got a power cable from your PSU going into the SSD?

 

[simondodd]

Yep, power cable from PSU to MB, from PSU to graphics card and PSU to SSD. I've tried removing the graphics card as well to see if that is pushing the PSU over the edge...

 

[Sammyjo20]

Yep, power cable from PSU to MB, from PSU to graphics card and PSU to SSD. I've tried removing the graphics card as well to see if that is pushing the PSU over the edge...

Right here would be my solution:
Unplug the SSD to change the boot from USB to SSD or SATA.
Then plug in the SSD and then put your OS CD into the disk drive. Press a random key on the keyboard and it should boot to the CD.

 

[simondodd]

That's not really a solution though... If I plug in any sort of hard drive SSD or not to the power supply the machine fails to turn on... Basically I have a machine that can't have a hard drive!

 

[Sammyjo20]

That's not really a solution though... If I plug in any sort of hard drive SSD or not to the power supply the machine fails to turn on... Basically I have a machine that can't have a hard drive!

Get a replacement on your mobo then. The SATA connectors must be broken or something. That's all I can really say mate. Sorry

 

[simondodd]

No worries, thanks for the help. I'm pretty sure its a problem with the SATA connectors on the PSU... I've managed to dig out an old external SATA adapter that I am now using to power the SSD while still connecting the data lead to the MB and it seems to be working so far... Will find out when this USB boot gets to the installation screen to see if it can see the hard drive Fingers crossed eh!

Thanks for your advice though

 

[simondodd]

Whoop whoop! It seems to be working! Now I've just got the tedious task of installing windows 7 and going through the 50,000 updates! haha Thanks again for your help

 

[Sammyjo20]

Whoop whoop! It seems to be working! Now I've just got the tedious task of installing windows 7 and going through the 50,000 updates! haha Thanks again for your help

Awesome! Sorry that I wasn't much help but I'm glad you got it fixed.