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Question about PCI Express cards

Discussion in 'General Hardware' started by goober, Nov 3, 2008.

  1. goober New Member

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    Is it possible to put the pci express 1x (the small socket such as a tv tuner) into a full size PCI express 16x slot and have it work ok without causing damage. :confused:
  2. tigger

    tigger I'm the only one

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    It is possible yes.
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  3. Fastmix

    Fastmix New Member

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    Sure can...it's backwards compatible.
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  4. Sasqui

    Sasqui

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    Good question.

    Yes, according to Wiki, the 16x PCIE slot is totally lower-band comatible, the small slot towards the back of the case is the same, so any "X" will lock in on the right connectors.

    "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)"

    Note: the bottom slot in this pic is vanilla PCI!!!

    [​IMG]

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

    BrooksyX

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    Yes, PCI-E 1x cards can work in 16x slots. I'm pretty sure they can work in 4x slots too. I know 4x is pretty rare but I have seen some motherboards with a 4x slot.
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  6. goober New Member

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    awesome it does work.
  7. ~Tofu~ New Member

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    yay first post =D
    continue on the question
    does that mean the motherboard would waste power? since the other pins are not being used
    o_O?
  8. Mussels

    Mussels Moderprator Staff Member

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    electrical circuits dont pass any power if there isnt a connection. If pins are not connected with something between them, power cannot pass through them - therefore its not wasted.
  9. Pinchy New Member

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    A 16x card can also fit into a 4x lane, providing its open ended.
  10. twicksisted

    twicksisted

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    i have my PCI-E X1 Soundcard in the 2nd PCI-E X16 slot on my asus board...
    I couldnt put it in any of the PCI-E X1 slots becuase my graphics card is too big.

    works perfectly.. no worries ;)
  11. DanTheBanjoman Señor Moderator

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    Any PCI-e card should work in any PCI-e slot. Cutting away the back of a PCI-e slot allows any card to work in it. Warranty of course will be voided that way.
  12. ~Tofu~ New Member

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    so why do they make a pci-e x1 pci-e x2 and all the others when they can all fit into one slot pci-e x16?
  13. DanTheBanjoman Señor Moderator

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    Electrically it's chipset limitations. There are only so many lanes available on a given chipset. Physically it puzzles me, keeping the back of the slot open to give you more freedom of what to put in it or just using x16 connectors everywhere would be so handy. The only downside is having components behind the slot, though this isn't that much of an issue on most boards.
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  14. ~Tofu~ New Member

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    Ah i see thanks for the answer =D

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