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Dell Precision workstations Models 7820 and 5820
I have 4 machines i am working on all four have same problems Hard drives are not being detected ( even after a Motherboard replacement ) The Bios will not detect any drives but when in Device configuration you can the see the drives . 3 machines have Intel® VROC Standard raid controller ( all 3 machines are using NVME M.2 SSD in all four bays )
The other Machine has 3 SATA Hard drives using hdd 2.5" drives ( i tested each drive and they work properly )
I know that the problem could be anywhere raid controller card , flex bay daughter board , cables, SSD M.2 etc. Has anyone seen this before ? seems to be happing to often
I am wondering if it is in the setup in device configuration ?
mazzinia_
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February 12th, 2022 12:00
I assume you manually loaded the needed Intel RSTe (rapid storage enterprise) driver while the windows installer is booted, before reaching the installation location selection ?
Also to my knowledge the 5820 and 7820 can have only 2 flexbays converted to u.2/nvme . Do you have an optional raid controller installed to handle all 4 flexbays (and so both backplanes have been changed) ?
Is the 4th machine having non converted/standard backplanes for the flexbays ?
mazzinia_
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February 13th, 2022 05:00
Well, with a pre existing install that was working, the driver was already loaded in it obviously. But maybe it got updated on auto with a wrong version (just an idea).
The 4th machine is more troublesome since it should just work, unless again something got drastically altered by an update.
Would I be right in assuming that all 4 stopped working ( as in started having this issue ) at the same time ? Was the bios updated just in one ?
Dell on-site tech NewYork
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February 13th, 2022 05:00
Hello Thanks for answering, to answer your question "NO" i would assume the driver was already there ( the machine is 2 years old was working fine until last week )
And yes the machine does have 4 conversion drive bays and has 4 1 TB NVME ssd m.2 ( 2 are connected to the raid controller the other two plug into the mother board )
THE 4TH machine is using standard backplanes using SATA 3 connections ( NO CONVERSIONS ) i recently updated the Bios Firmware
Thanks James
Dell on-site tech NewYork
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February 13th, 2022 08:00
Hi so to answer your 1st question it did not get updated . ( there are 3 machine with almost the same configuration that are not detecting the 1 tb ssd drives all 4 of them
2. the 4th machine did not have any updates within the past 2 weeks
3. the 4th machine that has 3 SATA 3 DRIVES ( sas ) the mobo was just replaced and the drives will not show up in the bios , al the cables were check along with the backplane , the system has a raid 1 configuration along with a raid controller card . The drives do show up in the device configuration . but when the system is turned on it will post but can not find the O.S.
No the machines did not stop with the problem at the same time
mazzinia_
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February 13th, 2022 08:00
For the 4th machine ( mb replaced ) , chances that the raid controller somehow lost the raid configuration data in between being removed and reinstalled ?
(if you have a backup of the data, you could recreate the array and reinstall the os)