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February 20th, 2025 18:55
Lost drive after BIOS update.
I have a T5820 and after upgrading to BIOS 2.39 I lost Mini-SAS Port 0. Port 1 still works, but the BIOS no longer sees Port 0. I contacted the company that i purchased it from and mine is not the first one to have this same issue. Rolling back to earlier BIOS didn't help.

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mazzinia_
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February 21st, 2025 10:16
Hello,
did you try to reset the bios ?
Davis7795
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February 21st, 2025 15:30
@mazzinia_ Yes, resetting the BIOS doesn't change anything. I think the real reason is the Intel ME firmware got updated.
mazzinia_
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February 21st, 2025 16:28
@Davis7795 Going by memory, the Intel ME firmware update requires first to update the bios and only after, to separately update the ME firmware.
Davis7795
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February 21st, 2025 16:58
@mazzinia_ It's part of the BIOS update. it's one of the steps that take place during the BIOS update. it updates the BIOS and then updates the ME firmware. I attempted to install an older version of the BIOS and it would fail at the ME Firmware update part. I guess you can't overwrite with older version. The BIOS downgraded but not the firmware. I would get an 0x00002236 error.
I guess i will have to wait for Dell to release a new version and hope it fixes the issue. Luckily for now I can use port 1 for my drive.
mazzinia_
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February 21st, 2025 17:02
@Davis7795 didn't realize that. I think that for the 7820 there are separate packages , one for the bios and one for the ME firmware instead
Davis7795
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February 21st, 2025 20:11
@mazzinia_ That may be but since they are the same family you would think they are the same. I know there is a separate install for the app from the BIOS.