PCIe support in M.2 slot of S01-aF1015na

AB214 · ‎01-08-2023

I bought the S01-aF1015na (https://support.hp.com/bg-en/document/c07772801) with the intention of adding a PCIe NIC to it since according to the board specs (https://support.hp.com/bg-en/document/c06609597) it says one of the M.2 slots is M keyed, so should support PCIe x4. So knowing this I bought an M.2 M key to PCIe adapter (like this: https://www.ebay.com/itm/254730098594) but the NIC is not detected in the operating system. The NIC works fine if plugged directly into a PCIe slot in another computer, but unfortunately I don't have any other M.2 slots to test the adapter. So is this issue due to a faulty adapter or does the HP computer not support the M.2 spec fully?

TheOldMan · ‎01-08-2023

According to the spec page, the M.2 slot that is keyed as M is occupied by the 128 GB PCIe® NVMe™ M.2 SSD, unless you have removed that drive. The One M.2 socket 1, key A is probably meant for the WAN adapter, but the manuals are not in English so I cannot check that.

BTW: also according to the spec page the motherboard has an onboard NIC - Realtek RTL8111HSH-CGT. Is there some reason for a different NIC?

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AB214 · ‎01-08-2023

Yes, I have removed the M.2 SSD and put the adapter and NIC in its place. The reason for wanting the NIC is because I want to use this as a DIY router so would like more ethernet ports. The other M.2 slot does indeed have a wireless adapter in it.

TheOldMan · ‎01-08-2023

The spec page also indicates - The chipset on this motherboard is combined with the processor into a single integrated circuit called System on a Chip (SoC). This technology combines the processor and chipset functionality into a single physical package.

Unless you know how to cause the chipset to recognize a different setup, look in the BIOS for any action to cause a different response to the M.2 slot.

This knowledge is beyond my knowledge.

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AB214 · ‎01-08-2023

I had already fiddled with the BIOS but there was nothing related to changing the functionality of the M.2 slot, although I may be missing something. I also tried disabling the onboard network controller but that didn't work.

Anyway, thank you for your time.

TheOldMan · ‎01-08-2023

The only other choice to add NIC is by using a USB adapter, then.

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