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Adding a second GPU when Case/MB doesn't allow it

Discussion in 'Graphics Cards' started by Lightofhonor, Jun 14, 2014.

  1. Lightofhonor

    Lightofhonor

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    Hello,

    I was planning on adding in another 7850 to my rig since I knew my MB had another PCIE slot free and Newegg has one for stupid cheap so I ordered one. The problem is I didn't take into account where the slot was in relation to my case and the fact my case only has 4 bays total and the cards each use two.

    The slot setup is:
    PCI-E (GPU here)
    PCI-E 1x (Covered)
    PCI
    PCI-E

    Now obviously if my case had 5 slots then this wouldn't be an issue, but stuck with four I can't see a solution. I know I could get a riser to move it to a different slot, but with the only option the PCI slot I don't think I could use since the connection would get in the way.

    Any ideas or am I stuck? I'm willing to buy adapters, but not a new case or MB.
     
    Crunching for Team TPU
  2. Norton

    Norton WCG-TPU Team Captain

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    What case and motherboard do you have?
     
    Crunching for Team TPU More than 25k PPD
  3. Lightofhonor

    Lightofhonor

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  4. Vario

    Vario

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    Yeah you need a different case
     
  5. Norton

    Norton WCG-TPU Team Captain

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    Cut a hole in the bottom of the case, put a filter over the card ;)

    Not kidding btw....
     
    Last edited: Jun 14, 2014
    eidairaman1 says thanks.
    Crunching for Team TPU More than 25k PPD
  6. Devon68

    Devon68

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    I just don't know. The best thing to to is what Norton said. Put taller case feet and somehow cut a hole in the bottom of the case. Or buy a cheap used case with at least 5 or 6 expansion slots. Or buy a PCi-E riser and build a small case compartment in the bottom of the case to house the second card. But to tell you the truth a new case looks like the best and cleanest solution.
     
  7. TRWOV

    TRWOV

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    You could "mount" it on a 5.25 bay but then there is the issue about the Xfire cable.

    If you don't want to mod or construct custom stuff you could get another board with a different layout. An Asrock Z87M Extreme4 would suit your needs.

    Or better yet, sell your 7850 and get a 7950/7970. You could get one for ~150 used if you're lucky.
     
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  8. micropage7

    micropage7

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    or just buy pciex riser, a longer one
     
  9. OneMoar

    OneMoar

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    Last edited: Jun 15, 2014
  10. The Von Matrices

    The Von Matrices

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    For everyone suggesting riser cards and PCIe cable extensions: Remember that for a 7850, you need a crossfire bridge to connect to the first card. That limits the mounting options significantly since the bridges can be pretty short,
     
  11. OneMoar

    OneMoar

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    thats why you use a flex cable just make sure you get at least 3 incase one is defective
     
  12. Vario

    Vario

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    Sell case on craigslist buy case on craigslist. You can get some crazy cases on there.
     
  13. Lightofhonor

    Lightofhonor

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  14. Maban

    Maban

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    Why not go without a case?
     
  15. micropage7

    micropage7

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    maybe the best is just buy cheap case, and you can cut it to improve your airflow
    cheap case tagged below $50 and you have nothing to lose than cut your current case
     
  16. TRWOV

    TRWOV

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    Sell 7850s, get a 7970/280x
     
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  17. silkstone

    silkstone

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    You could always drill new holes in the plate the mobo sits on, move the whole mobo back and up a little and run cables through the slots at the back. An inelegant solution, but, the case would retain its integrity and you wouldn't have to buy anything more than a drill bit.
    Either that, or remove the rivets from the back of the case, cut the top portion off the back and shift it all up. Put the PSU in the 5.25 bays and move the back plate up too.

    You'll either have to modify your case or buy a new one.
     

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