Zitat von Fernando im Beitrag #15

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You certainly mean "either in LEGACY or UEFI mode", because the Intel RAID ROM/EFI SataDriver doesn't matter while running the OS in AHCI mode.

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Yes, typing mistake indeed.

Zitat von bookevg im Beitrag #17

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I find in the manual that my motherboard support both RAID configuration:
UEFI RAID for Windows8.1/8 x64
and
Legacy RAID ROM

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Yes, but not simultaneously.
Since Windows 7 doesn't fully support the clean UEFI mode (with disabled CSM), I recommend to switch to Windows 8.1 resp. the upcoming Windows 10, if you want to benefit from the features of your new mainboard.

Zitat von bookevg im Beitrag #20

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So I can upgrade ROM SataDriver to a new version of Intel RST(e) RAID ROM (for example v13.5.0.2164) when Win7 or Win8 in UEFI mode are turn off.
Then I turn on Win7 or Win8 in UEFI mode and upgrade EFI SataDriver to a new version of Intel EFI SataDriver (for example v13.5.0.2164).

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You can (and should) update them both (RAID ROM and EFI SataDriver) at the same time. This way your Intel RAID Controller will use the latest RAID ROM/EFI SataDriver version regardless of the OS installation mode (UEFI/LEGACY).

Zitat

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What TRIM need for ROM SataDriver?

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According to my knowledge none of the currently available Intel RST RAID ROM/EFI SataDriver modules will let the TRIM command pass through the Intel SATA RAID Contrloller into a RAID1 array. Only Intel SSD RAID0 arrays and SSDs, which are not member of a RAID array, natvely are supported by the TRIM in RAID feature.

Zitat von bookevg im Beitrag #23

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Zitat von Fernando im Beitrag #22

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You can (and should) update them both (RAID ROM and EFI SataDriver) at the same time.

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How can I update at the same time?
ROM SataDriver are update using AMI non-UEFI MMTOOL v3.26
EFI SataDriver are update using AMI Aptio UEFI MMTool v4.50.0.23.

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Your actually used Gigabyte mainboard has an AMI UEFI BIOS, where both Intel RAID modules (ROM and SataDriver) can be modified by the AMI Aptio UEFI MMTool v4.50.0.23. So you can (and should) do it at the same time.

Zitat von bookevg im Beitrag #26

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I updated to ROM and EFI SATARAID v13502164 using UEFI BIOS Updater. But the problem was not gone

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I have not written, that the update of the BIOS RAID modules will solve your problem with one of your RAID arrays.

Zitat von bookevg im Beitrag #27

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May be one HDD from RAID1 is dying?

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That is possible.
By the way: It is not a good idea to install the OS into a RAID1 array. If I were you, I would purchase a good 120 or 250 GB sized SSD and do a fresh install of the OS onto it.