[HELP - 20+4 Pin Connection Problem]

Hi all,

 

First time poster as until now I have been pretty competent on fault finding and research to rectify problems, but this one has me stumped.

 

I have recently upgraded my Thermaltake 400w PSU to a Thermaltake 600w PSU. I have noticed that on the 20+4 pin connector that the white wire (-5v connector?) is absent from the new PSU. I have read that this is not a necessary connnector, however, without it I cannot power up my system.

 

I have an ASUS Striker Extreme MOBO. All the ancillary indicator lights come on when connected (USB, Fans etc) but the power button is non-responsive and the power switch lights on the MOBO do not illuminate.

 

If anyone can provide assistance it would be greatly appreciated.

 

Cheers,

 

RA