what is 1 (x8) PCI-Express (using x16 slot)?

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ToddAndMargo - 02 May 2008 22:16 GMT

Hi All,

I am looking at a motherboard that says it has an:

(x8) PCI-Express (using x16 slot)

What is this? Can I install a PCIe 16x video
card in it? Will it only run at half speed?

Many thanks,
-T

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RJK - 02 May 2008 22:39 GMT

http://en.wikipedia.org/wiki/PCI_Express

regards, Richard
...(currently researching PCI-E slots ! )

> Hi All,
>
[quoted text clipped - 7 lines]
> Many thanks,
> -T

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ToddAndMargo - 02 May 2008 22:50 GMT

>> Hi All,
>>
[quoted text clipped - 7 lines]
>> Many thanks,
>> -T

> http://en.wikipedia.org/wiki/PCI_Express
>
> regards, Richard
> ...(currently researching PCI-E slots ! )

Excellent reference. Thank you!
-T

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M.I.5¾ - 06 May 2008 09:57 GMT

> Hi All,
>
[quoted text clipped - 4 lines]
> What is this? Can I install a PCIe 16x video
> card in it? Will it only run at half speed?

It is geometrically a 16x PCI express slot (in that it will physically
accept up to 16x cards). However it only has 8 PCIe lanes wired. Yes you
can insert a 16x video card in it, and as you correctly surmised it will
operate with only those 8 lanes (and at only half the bandwidth).

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