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Thread: Storage Controller in 2nd PCIex16 Slot in B85 Pro4 Motherboard




  1. #1
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    Question Storage Controller in 2nd PCIex16 Slot in B85 Pro4 Motherboard

    I'd like to put a PCIe x2 or x4 SATA controller in the PCIe 2.0 (acting as x4) slot. Is this supported or is the slot limited to graphics controllers?

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    Default Re: Storage Controller in 2nd PCIex16 Slot in B85 Pro4 Motherboard

    Bill, to be straight up honest with you it's hit and miss.

    Speaking of PCIe x2, I have used a PCIe x2 slot card that has seemingly worked rather well regardless motherboard or slot used. Syba SI-PEX40057 RAID Controller, though I've only used them for non-Raid usage. Of course, YMMV.
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    parsec is offline Senior Member
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    Default Re: Storage Controller in 2nd PCIex16 Slot in B85 Pro4 Motherboard

    I agree with wardog, you simply must try it to be certain.

    What might work in your favor is the second PCI-E x 16 slot (PCIE4) is a PCI-E 2.0 interface, while the first PCI-E x 16 slot (PCIE2) is PCI-E 3.0. PCI-E 3.0 support is on the CPU itself, while PCI-E 2.0 is on the B85 chipset.

    So those two slots are on separate PCI-E interfaces, and are more likely to be independent of each other, and PCIE4 usable for more than simply video.

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