pci express 2 / gtx 460

[stereo]

I have my videocard gtx 460 in slot pci express 2. The first pci express slot is empty.
Someone said that this will affect the videocard performance, as long as the pci ex 1 is empty. The way i have it, should be only if i do SLI or crossfire.
Is that true ?
Thank you.

 

[smarteyeball]

The top two slots are PCI-E x16, so with a single card in the second slot (2nd blue slot) it's still running at x16.

So basically, no it won't have an adverse effect where it is.

 

[stereo]

I never read before the manual
(Note 2) For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot; if you are installing two PCI Express graphics cards, it is recommended that you install them in the PCIEX16_1 and PCIEX16_2 slots.
So, if i put the card in the slot PCIEX_1 ( for optimum performance ) do i have some advantages ?