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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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1.4K Posts

February 21st, 2025 10:16

Hello,

did you try to reset the bios ?

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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.

4 Operator

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1.4K Posts

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.

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4 Posts

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.

4 Operator

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1.4K Posts

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

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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.

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