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How many PCI Express 2.0 x16 slots?

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June 19, 2008 7:54:39 PM

Is there any reason to spend more for a MB with more than one PCI Express 2.0 x16 if I plan on using only one 8800GTS-512 GPU?

Are there any other cards that need this type of slot?

More about : pci express x16 slots

June 19, 2008 8:13:14 PM

NO. Simple as that, even if you want to SLi. I'd still discourage it due to stability issues. Go Intel chipsets or AMD chipsets. You don't need PCI-E 2.0 yet. 1.0 or 1.1 is fine. I'd worry about putting a GTX 280 into a 1.(1) slot though.
June 19, 2008 8:29:27 PM

Most relatively newer boards come with PCI-Express x16 2.0 slots anyway don't they?

You could keep in mind that it all depends on how many PCI-Express cards you plan to use, whether they are video cards or something else. Most boards that I've looked at that only have one PCI-Express x16 slot usually have a couple of more PCI-E slots (x1 or x4) and then 2 or 3 regular PCI (non express) slots. You can use lower PCI-Express cards in higher PCI-Express slots. But you can't use a PCI-Express card in a regular PCI slot. But generally, most things come onboard now and there's no immediate use for PCI-Express cards except for video cards.

So as long as you don't have too many PCI-Express expansion cards to utilize, you won't need more PCI-Express x16 slots than you do video cards.
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June 19, 2008 8:47:06 PM

you can still buy single pcie boards the P45 chipset is "reported" to have 1 pcie 2.0 slots.

these boards are usually cheaper to purchase. but dont be put off a board just because it has an extra pcie slot

the 3 way sli boards are quite pricy and not worth it unless you are buying 3 8800gtx / 280gtx
June 19, 2008 8:48:10 PM

richj said:
Is there any reason to spend more for a MB with more than one PCI Express 2.0 x16 if I plan on using only one 8800GTS-512 GPU?

Are there any other cards that need this type of slot?

Yes there is
I wanted an X48 mobo with 1600 FSB support and DDR2 and OC easily
I found Asus Rampage Formula but it has 2 PCI Express 2.0X16
I can Cross Fire but I do not intend to
So I ended using one 8800GTS(512)
and E8500 OC'd to 3.8 ( 9.5X400) i.e working at 1600FSB easily
And I'm so satisfied
!