GTX 590 only 1 GPU showing up

[MON6OOSE]

Hi i have a GTX 590 and only 1 GPU is showing up
I have no SLI option inside Nvidia Control Panel either

Rest of specs are
ASUS M5A99X EVO R2.0
AMD FX-8120
2x8GB XMS3 1600MHZ
60GB OCZ Vertex
1TB Western Digital
Corsair CX750M Power Supply


I really need help on this before i go mad

Thanks in advance

 

[zink1701]

I assume you have 2 cards in SLI? if so you PSU is not big enough to handle both. Are both cards showing in dev manager? http://www.guru3d.com/articles_pages/geforce_gtx_590_sli_review,3.html

 

[MON6OOSE]

No i have a single card the GTX 590 is a dual GPU on a single PCB

 

[siddharthmukul007]

if you are not gaming and simply running in windows, disables SLI

 

[MON6OOSE]

It is only showing as 1 GPU in device manager

 

[siddharthmukul007]

did you get any new components or update any drivers???

 

[MON6OOSE]

The PSU is new, PC has been freshly loaded with Windows 7 and all drivers have been installed correctly

 

[siddharthmukul007]

i am actually beginning to suspect the psu....can you check you card in another machine???

 

[MON6OOSE]

Yes have checked the card in another machine it does the same

 

[06yfz450ridr]

its a dual gpu card on one pcb which means its going to show it as only one card, you can only enable sli with two 590s

 

[MON6OOSE]

It is only showing as a 1.5GB Card i have tried googling this problem and people are saying 2 GPUs should be in device manager and there should also be a SLI option in Nvidia Control Panel

I have run 3DMARK and it shows as 1GPU working

 

[siddharthmukul007]

than i am afraid it might be a problem with your card itself.....get in touch with manufacturer's customer care