PC won't shut down

[camlost]

Hi All,

I just build a new pc two days ago and everythings fine, The problem i'm having is i can shutdow Windows but the PC is staying on...lights fans etc. the monitor does powers off.
So for the pass day or so I've been searching for a solution. there seems to be a common IEEE fix that's worked for a lot of people but i don't actually have IEEE on my system. i think i've narrowed it down to the GPU, as before i installed it it was shutting down, abiet slowly.
i have a thermaltake 850 PSU and i'm using the additional cables from the red pci-e sockets to the card, i do however the 8 and 6 pin black cables that were already coming from the PSU and wondered if i could have used those?

So far i've checked bios and Power Settings in windows from various suggestions.
What i do a restart the PC does power down and come back up.
Could it be how i have plugged in the case panel leds to the mother board? currently these are working though.

Rig:
i5 3570k
Asrock z77 pro 4
Thermaltake Black Widow 850 PSU
Windows 7 64bit
gigabyte gtx680

Many Thanks!

 

[Vinwiesel]

I also have a Thermaltake 850 with a p8p67pro mobo, and gtx570 gpu. I am not using the red pcie connectors from the supply, just the black ones. I believe one is a 6+2, and the other is a 6 pin. This setup has caused me no problems. I also do not have the reset pins connected to the front panel, as my case has no reset button. Pwr and hdd activity led's are connected and work fine.

There is one green LED on the motherboard that stays on when the system is shut down, otherwise everything else is off.

 

[Bubbaleone]

.....Could it be how i have plugged in the case panel leds to the mother board? currently these are working though....

The GTX680 needs both 6-pin PCIe and 8-pin PCIe power, and the TR2-RX 850 comes with two of each cable, so make sure that's properly configured. It also sounds like you never got your front panel connectors correctly connected to the mobo header. Get the mobo manual and look carefully at the front panel header pinouts. Each of the front panel connectors are marked to show the #1 pin, which should be oriented with the corresponding #1 pin on the mobo front panel header.