problem with pciex1_3 slot with my motherboard

[shaharov]

hi guys,
i have gigabyte's motherboard (model ga-f2a85x-up4  ) and it seems that the pciex1_3 slot doesnt work (pci-x 1.0 , the 3rd slot). the other 2 works , but specific one - 1_3, is not working.

i tried varius thing
- everything plugged
- everything BUT pcie1_3 unplugged.
- plug something to pcie1_1,pcie1_2,pcie1_3 , and leave the pcie4,8,16 unplugged
-pcie16 and plcie1_3 plugged. the rest empty.
and so on.
nothing works.

i start thinking that something in the bios says to the mb "disable pciex1_3!".

does anyone have this problem before? and maybe have a solution for me? (maybe update bios and find some specific attribute to change?)

thank you in advance.

[1715584114]

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[1715584114]

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[1715584114]

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[1715584114]

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[freddyfarnsworth]

Some MB remove (disable) slot three if slot one is used, some can be overridden some cannot, check and read the data sheets over on Gbytes site to see. Manual should have that data in it.

I think the use of risers that only use some of the slots data channels are used for adding 4 to 6 cards to a machine.
4x4x4x4x4x4 ect is all bitcoin work needs, not like a game needing texture memory IO is pretty low compared to a game.