Intel Motherboards : asrock h370m-itx/ac SSD (M500) not recognized

Author: borre
Subject: asrock h370m-itx/ac SSD (M500) not recognized
Posted: 20 Jun 2020 at 2:39pm

Hello,

I have a asrock h370m-itx/ac which boots ok.
It reconize my harddisk But not my SSD (crucial M500, CT120M500SSD1, firmware MU05)

It does not show up in de storage list.
But When I go to the Harddisk priority in the boot menu.
It shows my SSD

When I start up my OS (UnRaid) I cannot find the SSD.

Tried:
- only attach the SSD
- swap sata and power cable between hdd (wich is reconized) and the SDD
- uefi defaults
- Both (motherboard and SSD) have the latest firmware.
- sata mode is AHCI (raid does not make any difference)
- sata device type setting (ssd of hdd) does not make any difference
- external sata setting on or off does not make any difference

Specs:
- asrock h370m-itx/ac firmare P4.30
- intel i3-9100
- 1 strip crucial 16GB (ddr4-2400) ram
- hdd tosihiba MQ01ABD050
- SSD crucial M500, CT120M500SSD1, firmware MU05

here are some images of the bios/uefi
https://photos.app.goo.gl/6MsMdv2j9Ugx9Q2r8

What can I do?
I am a little confused...