[Request] Clevo W870CU Option ROM update

[macpap]

Hello,

I need help with an Option ROM update for my notebook - Clevo W870CU.
This update is my last hope.
I bought two Samsung Spinpoint M9T 2TB. Only one drive on Port 0 is recognized. The HDD´s are both working correctly because if I exchange the drives I have the same issue. All SATA ports are enabled in BIOS. Older drives like the Seagate Momentus 750GB are recognized and the Intel RST is showing up. With the two Samsung drives attached the Intel RST isn´t showing up. Also in AHCI mode only the drive on port 0 is showing up. So it is my last hope that an IRST-update solves the problem of the unrecognized drive on port 1.
A few years ago I had an similar issue with a shuttle barebone. Back then my new SSD wasn´t recognized by BIOS and IRST, after an option rom update it worked perfect.
The Option Rom that is in the latest Clevo BIOS (1.0.0.18) is 10.0.0.1026.
The main problem is that I couldn´t find any tool to edit the Clevo Phoenix BIOS. So I hope here in the forum the advanced mod-users can help me.
I attach the Clevo BIOS 1.0.0.18, the Intel RST Option ROM 11.2.0.1527 I downloaded from win-raid.com. There are also higher/newer versions of IRST ROMs for download but as a layman I don´t know which ROM to take.
So please help and thanks in advance.
Marcus