Thanks! On a first page of this thread, in table of best driver versions:

Intel X79 Chipsets Intel RST(e) v13.1.0.1058 WHQL Intel RST v11.2.0.1006 WHQL (best performance) or
Intel RST(e) v13.1.0.1058 WHQL (much newer)
Note: Both options require the RST BIOS mode.

Does that mean that someone has validated those drivers with x79 RSTe and found them working good?

Actually, it doesn't matter. I installed one of 1x. versions and TRIM is gone, so not good for me. I'll stick with 4.x Thanks!

I installed modified: 14.8.1.1043. I made sure controller has correct driver version in the control panel. Then, I tried to invoke "Optimize" in "Defragment and Optimize Drives" app in Win10. With 14. driver, Optimize isn't available on SSD RAID0 volume. I reverted to 4.3.x and that came back, I can invoke trim ("Optimize") now.

One thing I am confused is OROM versions + driver relationship. I can't tell off top of my head which OROM I am running at work, (funny, x79 here as well!), but at home OROM is 3.5.1005. Should OROM be 1x.x something to use 1x.x drivers?

Zitat von Fernando im Beitrag #335

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You probably know, that this is not a method to detect TRIM activity within the RAID0 array.

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Zitat von Fernando im Beitrag #335

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If you want to get the best RAID0 performance, the Intel RST/RSTe RAID ROM version should belong to the same developent branch (e.g. 11.2, 12.9, 3.8, 4.3) as the in-use Intel RST/RSTe RAID driver.

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Hi Fernando,

Thank you so much for all the valuable information you're sharing with us on this great forum!

I’m using my PC as an audio workstation.
My config:
Windows 10/x64
Intel 8280 HB(M)/IB(M) ICH8(M)/ICH9(M) - SATA RAID Controller

I’ve downloaded and installed your modded Intel RST 11.2.0.1006 driver and that completely solved my problems using my RME/FireFace audio interface with which I was experiencing many audio dropouts and glitches with more recent Intel drivers.

The only inconvenient is that my PC is now no more able to boot in UEFI mode. I have to switch to legacy mode to be able to boot.

I was wondering if this problem can be addressed or if this is inherent to using the Intel RST 11.2.0.1006?

I’d be grateful to receive any advice from you.

M_M

Thank you very much Dieter for your quick and detailled answer.

I'm still a bit confused, because so far I have been able to boot in UEFI mode using Intel official RST drivers 13xxx or 14xxw. My PC is a one year old HP Pavillion.

To be more specific I can sum things up like this:

With recent Intel RST drivers 13xxx and up ---> My PC boots in full UEFI mode
When I use the recommended (and excellent!) Intel RST driver 11.2.0.1006 ---> My PC shows a "No bootable device found" (or such) and freezes.

I have then to enter BIOS settings, deactivate "Secure Boot", activate "boot from legacy devices", and reboot to actually boot my computer.

Is this the expected behaviour?

I may have been wrong in mentionning that my PC was equipped with an "Intel 8280 HB(M)/IB(M) ICH8(M)/ICH9(M) - SATA RAID Controller". That info comes from the AIDA64 software and is probably erroneous. My bad.

Actually my motherboard is a Memphis Pegatron (Hewlett-Packard 2AF7) equipped with an Intel H87 chipset [Lynx Point]. My Optional RAID Rom version is 12.5.0.1815.

This certainly explains that my PC usually boots in UEFI mode, at least before I installed the Intel RST v11.2.0.1006 driver.

I still wonder why the 11.2.0.1006 "best" driver doesn't allow booting my system from UEFI since your tests results show you could to it without problem...

I was under the impression that I've completely disabled the "Compatibility Support Module" in the BIOS by explicitly turning off the "legacy boot" and activating the "secure UEFI mode" as I've always did when I was using recent RAID drivers.

As my PC has a H87 chipset, I guess it belongs to the "Intel 8- and 9-Series Chipsets (like Z87 or Z97)" line described in your useful table at the beginning of this thread.
I notice that I can choose beetween:
Intel RST(e) v13.2.4.1000 WHQL or
Intel RST v11.2.0.1006 WHQL

I my case, would driver Intel RST(e) v13.2.4.1000 WHQL be the best choice over Intel RST v11.2.0.1006, as you list it first?

Thank you for your help Dieter,
Bob

Zitat

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1. How did you get the Intel RST driver v11.2.0.1006 installed? Have you simply "downgraded" the driver version from within a running OS?

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Well... yeah... that's what I did... with the results you describe, but I admit I cannot for the moment plan a complete re-install of my system, even if I know now that is the way to go.

The nice thing is I can at any moment try another version of Intel RST drivers as they still provide a large range of previous versions for downloading.

As my OROM version is 12.5.0.1815, I will follow your suggestion and check out the 12.5.0.1066 driver. My first try seems promissing...

In the worst case, I think I will go back to your modded v11.2.0.1006 driver and will give up the option of booting in UEFI mode, as I have no security concern on this particular PC.

By the way, I have another question: Is it possible to modify an UEFI Bios? Reading this forum I've kind of seen a lot of instructions for modding non-UEFI Bios but not so much info about modding UEFI Bios.

Thank you again for your kind help! - I've just found the "Thanks" button :)
Bob