XFX 780i Motherboard Expansion Slots

EricCDN

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Mar 21, 2008
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The TV Tuner card i have has a pci 1x connection type, but my 1x slot is covered by my duel slot 8800 GTX GPU on the motherboard. the only option I have is to install it in the middle PCIe slot, and according to a couple articles i have read the PCIe can scale to 8x 4x and even 1x. However the XFX manual seems to suggest I cant do it saying it's reserved for graphics cards. Please let me know what I can do...

Here are two of my sources..

I read this from wiki...
http://en.wikipedia.org/wiki/Pci-e#Physical_Layer

a PCIe card will physically fit (and work correctly) in any slot that is at least as large as it is (e.g. an x1 sized card will work in any sized slot);
...
In both cases, PCIe will negotiate the highest mutually supported number of lanes.

The manual i got with my XFX 780i motherboard says this...
PCI Express x1 Slot
There is one PCI Express x1 slot that is designed to accommodate less
bandwidth-intensive cards, such as a modem or LAN card. The x1 slot provides
250 MB/sec bandwidth.
PCI Express x16 Slots
These three PCI Express x16 slots are reserved for graphics or video cards. The
bandwidth of the x16 slot is up to 4GB/sec (8GB/sec concurrent). The design
of this motherboard supports three PCI-Express graphics cards using
NVIDIA%u2019s SLI technology with multiple displays.
When installing a PCI Express x16 card, be sure the retention clip snaps and
locks the card into place. If the card is not seated properly, it could cause a
short across the pins. Secure the card%u2019s metal bracket to the chassis back panel
with the screw used to hold the blank cover.

So they appear to be comflicting, has anyone actually done this ? did it work? is there anything i can do?
 

chookman

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Mar 23, 2007
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It will work...

I have my RAID card in a 16x slot when its only 4x, although i dont have an SLI board but you can still put whatever you want in there and it will work fine.
 

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