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Z800 RAID problem? My guess

HP Recommended
Z800 Workstation
Microsoft Windows 10 (64-bit)

I got an Z800  workstation with one 300Gb SAS HDD drive with OS. I added two SSD SATA drives and both showed in BIOS. Now I removed SAS HDD and Installed Win 10 on SSD. It boots from SSD in SATA1 port, but does not recognize another SSD in SATA port 2. LSI SAS is disabled in BIOS. I think this is an issue with RAID. I can not access in Intel Matrix with CTRL+I because it is not prompted on startup. As a question: How can I ( or can I) delete/reset RAID volumes with these two SSD drives, or do I have to just add more drives?

Some specs:

Z800 Workstation

BIOS version 3.54

2x Xeon X5678 CPU

20Gb RAM (5x 4GB 10600E ECC)

Kingston SSD A400 240Gb (Running Win 10 Pro 64bit) in SATA 1 port

Cruzial SSD 240Gb in SATA 2 port

HP DVD optical drive SATA port 5

Blue (for me mystical) SATA port empty. If I connect DVD drive to this one nothing but optical drive shows in BIOS

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HP Recommended

we have answered this question (in various phrasings) numerous times please use this sites "SEARCH" function to see them 10 has all necessary drivers included for the z800's c600 series chipset


2. the z800 has two native sata 3 ports (usually blue or grey), and next to them are the 5 Intel "SCU" sata 3 ports that are activated by the intel RSTe (enterprise) driver ver 4.5.xxxxx which is included with win 10


3. the z800 has 7 SAS/SATA 3 ports that are controlled within the z800 bios in the LSI bios subsection, again driver support is included in win 10


the onboard  intel SATA and SCU ports are managed by the z800 bios, and have limitations based on the boards hardware/chipset 


1. the intel raid controller is unable to create/boot from a raid configuration

2. unless the OS has the necessary driver support included, you must load the SCU and LSI drivers via the "F6" method during the OS install

3. once the Os is installed you can create a SOFTWARE based (non bootable) raid using the intel SATA/SCU ports

4. the onboard LSI controller (if the boot rom feature is enabled in the z800 bios) is able to create/boot from a raid array using the boards 7 ports located along the bottom of the board, provided the necessary drivers have been installed, see note #2 above


last, the onboard z800 LSI controller is not recommended for raid 5 as it lacks onboard cache and battery backup and due to this will be very slow if raid 5 is enabled


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