GTX 560 Ti no SLI option? Why?

Morning all.

I just build my new PC up. I dont no what I did wrong but no SLI option at all.
I tryed to re-install my nvidia drivers but nothing happend. I checked my mobo all pcie slot works fine.

pls help.

sort specs:

ASRock 990FX EXTREME4 AMD Socket AM3+ Motherboard
AMD Bulldozer FX-8150 Eight Core - Black Edition 3.60Ghz (Socket AM3+) Processor
16GB Corsair 2100MHz
Zotac GTX 560 Ti 448 Core Limited Edition 1280MB DDR5
MSI GTX 560 ti Twin Frozr 2 oc edition 1GB DDR5
120GB Corsair SSD Force3
850Watt PSU iCute

You probably be using old gpu drivers. Update those.
for example, try 285.62 nvidia driver.

regards,
inf3rno

Yes, , only you can sell one the 448/normal one and get the proper ones, or get the 560 ti one as the PhysX dedicated processor .

ok so... I bought the wrong card unlucky
I just receive 2 days ago. should I send back?
My current nvidia driver version 295.51

Nvidia control panel/ PhysX configuration use my 2nd card (MSI GTX 560 ti Twin Frozr 2 oc edition 1GB DDR5 )as a PhysX processor.
Can I leave like this option or buy a new card?
And also how can I get the 560 ti one as the PhysX dedicated processor?

Yes, the 560-448 is a a 570 (G110) card with a disabled SM unit while the 560 Ti is a G114 based card.....they are not compatible for SLI.

I would highly suggest you get a qaulity PSU as well. PSU dying suddenly has the chance of taking out your entire system.