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z790 dark hero will only show 3 of the 5 m.2 sockets

Level 7

I'm totally stumped and I've been working on this all day.

I moved my m.2's to socket's 2-5 but the system is only registering 2,  3, and 4. Why would 5 not be showing up? Originally, I had used sockets 1-4 but read about the impact on the GPU so I switched them around. even then, the problem persisted and didn't show me socket 4. 

Any Ideas?



Customer Service Agent

Hello, @WayneH 

May I ask if the situation you described happened after any changes were made? For example, adjusting the BIOS settings or connecting an external device
Do you currently need to install four M.2 SSDs simultaneously, however, when installed in the M.2_1-4 slots, is it not recognizing the SSD in the M.2_4 slot, and when installed in the M.2_2-5 slots, is it unable to recognize the SSD in the M.2_5 slot?

If so, we recommend testing each SSD individually to identify any potential hardware issues.
Additionally, could you please confirm your current BIOS version?
If you haven't updated to the latest version 0904 released on February 16, 2024, please consider updating and clearing CMOS before rechecking again.

Thank you.

Due to the ongoing regional holidays, my responses may be slightly delayed.
Thank you in advance for your patience.‌‌‌‌ 🙂