16 Posts
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3750
February 4th, 2021 03:00
HDD Slot not working in 7920
We have this computer:
https://topics-cdn.dell.com/pdf/precision-7920-workstation_owners-manual_en-us.pdf
It has 4 HDD slots :
Slot 1 was empty.
Slot 2 has 512 GB M2 SSD (flexbay)
Slot 3 has 2 TB HDD.
Slot 4 was empty.
I added two more 8 TB HDD to empty slots. HDD in slot 1 is not working. It is not showing on Ubuntu 18 x64 OS.
I swapped Slot 1 and Slot 3, then old HDD (2TB in slot 1) is not showing but new HDD (8 TB in Slot 3) is working.
So nothing working in slot 1. But the light be on in Slot 1 HDD: (red arrow in the picture)
What is the problem, is slot 1 is broken or is not supported HDD? (maybe only run flexbay SSD?)
Question 2:
Manual says computer can have 8 pieces HDD:
Where are others 4 piece HDD slots? I could not found.
mazzinia_
6 Professor
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1.4K Posts
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February 4th, 2021 11:00
Modifying one of the u.2 slots is not feasible, the backplanes are in pairs
If you add the kit on the back, you gain 4 slots... is practical if you foretell to need to add more storage in the future.
If you, instead, really need just one extra hdd ( even long term ), and if the front 5.25" bay is not being used, you could buy a 3rd party 5.25" to 3.5" adapter and put there the hdd ( internal cabling would be on you to arrange )
mazzinia_
6 Professor
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1.4K Posts
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February 4th, 2021 07:00
Examples of the kit to add the rear bays
https://www.ebay.fr/itm/New-Dell-Precision-T7920-Rear-FlexBay-HDD-Cage-Backplane-Kit-w-4-x-Tray-Cables/264468934124?hash=item3d9393adec:g:qY0AAOSwAWNcizJm
https://www.ebay.fr/itm/New-Dell-Precision-T7920-3-5-Rear-FlexBay-HDD-Cage-Backplane-4x-Trays-Cables-US/373397141122?hash=item56f0343682:g:rAQAAOSwoP1elQeH
mazzinia_
6 Professor
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1.4K Posts
2
February 4th, 2021 07:00
If slot 2 has a nvme ssd inside, means slot 1 + 2 were converted to nvme/U.2 usage.
Slot 1 can accept either another nvme (using an adapter to install it) or an U.2 ssd.
Slot 3 and 4 are Sata and can accept any sata drive
2nd question :
On the back of the unit you can install 4 more flexbay slots, it requires a kit
mermuz
16 Posts
0
February 4th, 2021 09:00
Thank you so much. You are pro. Someone who says that he is my virtual assistant said that I should update my bios. lol, there are a lot of ignorant assistant that they mislead.
I understand that I should buy a HDD box to add new HDD to the slot in other-side. Or I should replace with m2 ssd in slot 2 with the HDD. Is there any reference for that information so I can accept a solution?