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Latest Intel CPU and motherboard pair compatible with PCIe 4x4x4x4 expansion slots

Latest Intel CPU and motherboard pair compatible with PCIe 4x4x4x4 expansion slots

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ABC_PT
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10-02-2023, 02:01 PM
#1
I have a server built with Unraid, mainly for Plex, and recently got four 3.84TB U.2 Samsung Enterprise SSDs. I purchased a card for the X16 slot to run everything, but discovered my CPU/board doesn’t support PCIe bifurcation at all—especially not x4x4x4x4. Is there any modern Intel CPU or motherboard combination that can handle this? I’m currently running a 14600K and using an Asrock Z790 board.
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A
ABC_PT
10-02-2023, 02:01 PM #1

I have a server built with Unraid, mainly for Plex, and recently got four 3.84TB U.2 Samsung Enterprise SSDs. I purchased a card for the X16 slot to run everything, but discovered my CPU/board doesn’t support PCIe bifurcation at all—especially not x4x4x4x4. Is there any modern Intel CPU or motherboard combination that can handle this? I’m currently running a 14600K and using an Asrock Z790 board.

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shupshep
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10-12-2023, 09:55 AM
#2
These chips support only x8/x8 configurations. The Z890 can go up to x8/x4/x4, but this varies by motherboard. I recommend confirming your Z790 board, as the bifurcation feature isn't always listed in the manual but may appear in the BIOS.
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shupshep
10-12-2023, 09:55 AM #2

These chips support only x8/x8 configurations. The Z890 can go up to x8/x4/x4, but this varies by motherboard. I recommend confirming your Z790 board, as the bifurcation feature isn't always listed in the manual but may appear in the BIOS.

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Jaymaziing
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10-15-2023, 10:55 AM
#3
Request someone to provide those items. Check if they’re linked via M.2 cables. Verify availability of free M.2 slots and compatible PCIe chipset. If not, consider workstation boards, expensive adapters, or an older X299 setup. Alternatively, you could resell them for a different compatible option.
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Jaymaziing
10-15-2023, 10:55 AM #3

Request someone to provide those items. Check if they’re linked via M.2 cables. Verify availability of free M.2 slots and compatible PCIe chipset. If not, consider workstation boards, expensive adapters, or an older X299 setup. Alternatively, you could resell them for a different compatible option.

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akademiks13
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10-15-2023, 12:32 PM
#4
I could possibly relocate to z890 and handle three of them. The next best choice seems to be AMD, though it requires more effort. I checked all the available options in my current BIOS but didn’t find a suitable one.
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akademiks13
10-15-2023, 12:32 PM #4

I could possibly relocate to z890 and handle three of them. The next best choice seems to be AMD, though it requires more effort. I checked all the available options in my current BIOS but didn’t find a suitable one.

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Rivir0l
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10-22-2023, 04:15 AM
#5
You can also perform some tasks using an NVMe connection. If your device supports it, it’s typically linked via a PCI-E Gen 3x1 interface, allowing you to swap out the wireless card for a direct SSD link.
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Rivir0l
10-22-2023, 04:15 AM #5

You can also perform some tasks using an NVMe connection. If your device supports it, it’s typically linked via a PCI-E Gen 3x1 interface, allowing you to swap out the wireless card for a direct SSD link.

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