z420 Raid config and more than HDs plugged in issues

[winskitech711]

Reset the BIOS back to factory defaults, did not change anything. Still only seeing two hard drives.

[winskitech711 · Accepted solution]

Attempted to update the storage drivers, message popped stating the version installed on the machine was higher than the version being installed. I installed anyways, this fixed it.

[deadsmiley]

Hey, I know that nobody has responded to your posts.  I want to let you know that this helped me.  I too installed the older drivers (vs. the ones provided by Windows 10) and it worked for me too.

[DGroves]

the hp z420 uses the "ENTERPRISE" RST drivers  for the "C600" series x99 chipset not the consumer RST driver set

go to the HP site and download the intel SCU drivers, this will enable  the drive ports which are not currently working

and the drivers will also enable AHCI/SATA non Raid modes

direct Intel DL link:

https://downloadcenter.intel.com/download/27308/Intel-RSTe-AHCI-SCU-Software-RAID-Driver-for-Windows...

[BLAKSAB]

Hi,

i'm trying to install W10 on a Z42O PC and i have had same problem you had related here.Impossble to see more than 2 HDD under windows.

I understand that i have to update the storage driver and i dowload the package here: https://downloadcenter.intel.com/download/27308/Intel-RSTe-AHCI-SCU-Software-RAID-Driver-for-Windows...

But there is a lot of software: can you tell witch on is the good one and how to install it?

Thank a lot

regards

[DGroves]

you can tell yourself by simply READING the included documentation on how to use the rst package files which intel/HP thoughtly have included

you can download the latest package (v4.5) directly from intel:  Version: 4.5.10.1021 (Previously Released) Date: 8/17/2018

https://downloadcenter.intel.com/download/28189/Intel-Rapid-Storage-Technology-enterprise-Intel-RSTe...

do not use any version higher than 4.5 as newer versions no longer include support for your boards chipset

[BLAKSAB]

Hi,

thanks a lot, all is fine with the 4.5 Drivers....the Z420 works well under W10-1903 and my 5 HDD are recongnized.

Have a nice day, once again many thank..

Regards