NO SSD disk end HDD and DVD rom in Windows 10 Home.

[jiripospisil]

After reinstalling Windows 10, this problem appeared. Previously Windows 10 Pro would be installed on the PC from the vendor and now I have installed Windows 10 Home. I have a total of four disks in my PC, two HDDs of 500 GB and 3 GB, and the five gigabyte one is primary with the system and applications with these disks. There is also a 2.5 SSD disk on one SATA data cable. They each have a separate power supply, SATA seven pin. Then I still have a Kinston M2 drive in the PCI reducer and two DVD-Rom optical drives and a Bluray burner. I have this problem: Only 500 GB primary disk and disk in M2 in reduction and only bluray drive are shown in the system on This computer. These drives are neither in this computer nor in the Bios. When installing Windows 10 Home, I had the disks disconnected in order to know which disk I should install Windows on. After starting Windows, this problem appeared. I think the problem is at BIOS or motherboard level. I checked the drives and they are connected correctly. There was no problem with Windows 10 Pro, when I additionally added them there, they were normally automatically installed in Windows, so I don't know where the problem could be.
Another problem is that my SAS controller shows up as an unknown device in the device message and I can't get a driver for it. I have another problem with the UAS (USB attached SCSI) mass storage device, it shows a triangle with an exclamation mark as if it is not installed, but I downloaded and installed the chargers from the HP website.
I also forgot to mention that I updated my BIOS to the latest one from 2019. The update went well except for these described disk problems, which also occurred on the old BIOS after reinstalling Windows 10 Home. As I wrote on old Windows it didn't work.

Please be patient!!! I translate Google with a transplant from Hestina to English and vice versa.

[Z440Roger]

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@jiripospisil wrote:

...Another problem is that my SAS controller shows up as an unknown device in the device message...

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Go to hp.com and download the drivers to your computer. If you just do a clean install some drivers will not be installed and devices will not show up. Start with the Chipset drivers and continue from there.

[jiripospisil]

I downloaded and installed all drivers on the HP Z420 Workstation from HP.cz, but it didn't help. SAS controller still appears as an unknown device. The SAS controller driver is probably not included in the chipset controls. Please advice on how to proceed further and possibly a link leading to the download of the SAS controller.

[Z440Roger]

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@jiripospisil wrote:

Please advice on how to proceed further and possibly a link leading to the download of the SAS controller.

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This thread seems to have the answer: Solved: Z420 Windows 10 x64 Driver Issues - Online HP Support Assist... - HP Support Community - 829...

Many helpful answers in that thread. 🙂

[DGroves]

several issues here

1. the SAS/SATA controller is a addin card, as the motherboard does not have a onboard SAS controller

as such a driver may be required depending on the card model, you will need to pull the card and read the label(s) to id the card maker and model LSI and adaptec are two of the most common

2. any drive connected to the SAS card will not show in the z420/440 bios, it will been seen in the SAS card bios, and during boot the card will prompt for a keypress to enter the sas card bios once in the bios any drives connected to the card should show

note the some sas cards are sas/sata capable and others are SAS only

same applies to the supported interfaces, some are JBOD/Raid and others are raid only