Optane P5800x Unexpected behavior

Hello,

I’m pulling my hair out and looking for help/advice before I go bald.

Relevant info:
MB: ASUS Z690-I
Bios: 2602
ME: 16.1.27.2176
ME Driver: 16.1.27.2176
CPU: i9-13900k
RAM: Corsair 6400 DDR5 Vengeance
SSD: WD Black 4TB/Intel Optane P5800x

While the Optane drive is occasionally recognized by my bios, 90% of the time it is not. My next step is going to try moving the M2 adapter that the Optane is using to connect from the 2 slot to the 1 slot. Any advice would be helpful.

I am trying to install Win11 onto the Optane drive.

May be unrelated but I thought I would mention it, when I load a windows bootable media it shows no drives as available, even the reliable WD boot drive I have been using.

Thanks in advance!

Pics of adapter?
Any clues in windows event log?

2 Likes

This may be cheesy but it is an honor to have you respond, I’m seriously fan boying out lol.

Windows event log does shed a clue!! Error 17 WHEA-Logger. After seeing this I saw that there was a hardware error with PCIE, and then it struck me, maybe the adapter doesn’t support PCIE 4.0 despite explicitly saying so!

Turned the M.2 lane to PCIE 3.0 and it is there!!!

Very excited to be using it now. Thanks for the assist. Do you know if the P5800x will saturate PCIE 3.0? If so any suggestions for a new adapter?

Kind regards,
Alex :^)

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Also the adapter is a PH49-M2 if you are curious.

Yep. You have a crappy adapter. I did a video a while back about the holy Grail of adapters. M.2 breakout cable. Order the kit using it with my p5800x to this day

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I will have to get one on order then! Excited to see the P5800x full potential. I only have a 400gig one and was planning just to have windows on it and whatever game of the week I have. Interestingly Asus has continued support for Optane on 13th gen so I may try using it as an Optane cache with my mass storage SSD.

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