Z270 bios 2.0

I update to 2.0.   I dont know how to use the Optane thing.

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NM Accoutant wrote: I'm running the Z270m-Pro4? board and using a PCI-E card as my boot drive, an Intel 750.? After installing version 2.0, when starting from a cold boot, the BIOS would not recognize the PCI-E card as even existing in the slot.? It's installed in slot 4.? Further, if I restarted the machine, on that second boot it included the PCI-E card as a boot device. I tried many different changes to the BIOS settings.? No success.? The only time the PCI-E card is recognized is on a warm restart.? Any start from totally "off" is certain to exclude the card as a boot device. I emailed ASRock and never got a response.? I reverted to version 1.40 as this is my business computer and the problem I experienced is not acceptable.

did you ever try turning off windows built in fast start up? As you cold boot might not be so cold as with fast start up it boots from a copy of stuff saved to the hhd.it might be something they changed with the bios that doesn't play well with windows fast startup . But ya I am staying with 1.40. only feature added on 2.0 was optane micro code ect is the same.so since optane is stupid if you have a SSD for boot since it only works on boot drives so no use for your had storage drives.

Edited by Demon009 - 24 May 2017 at 10:24am

NM Accoutant wrote: I'm running the Z270m-Pro4  board and using a PCI-E card as my boot drive, an Intel 750.  After installing version 2.0, when starting from a cold boot, the BIOS would not recognize the PCI-E card as even existing in the slot.  It's installed in slot 4.  Further, if I restarted the machine, on that second boot it included the PCI-E card as a boot device. I tried many different changes to the BIOS settings.  No success.  The only time the PCI-E card is recognized is on a warm restart.  Any start from totally "off" is certain to exclude the card as a boot device. I emailed ASRock and never got a response.  I reverted to version 1.40 as this is my business computer and the problem I experienced is not acceptable.

I installed the 2.00 UEFI for my Z270 GK6 board, and initially had a strange drive recognition problem with an OCZ RD400 PCIe M.2 SSD (used in an M.2 to PCIe adapter card, not the OS drive) in the board's PCIE6 slot.

The PCIE6 slot is generally similar to your board's PCIE4 slot, both being secondary, PCIe 3.0 x4 slots electrically. My board has two M.2 slots, and the RD400 was being shown as being installed in the M2_2 slot in the Storage Configuration screen, which was wrong. I removed the RD400 for reasons described below.

I'm forgetting some of the details, since I was also using an Intel Optane drive in the M2_2 slot for the first time, with Windows 10 installed on a SATA III SSD. I have the Optane SSD working with the SATA SSD in accelerated mode, but did not try to install the RD400 again. I'll do that soon as a test.

Just curious, do you have the SATA mode set to RAID or AHCI?

I have a feeling these issues are related to the Optane support update, although besides the change to the Intel IRST Option ROM to version 15.5 in the UEFI, I don't know what else was done in the 2.00 UEFI versions.

Unless you are planning on using an Optane drive, which I doubt, you aren't missing anything by using the 1.40 UEFI version. This is the first time Optane drives could be used, and that is the time that side affects like this are detected.

Since a UEFI update resets all the options to their default values, is there any chance you forgot to restore an option you had set when using version 1.40? Did you configure any sub option of the CSM option when you installed Windows (?) on your Intel 750?

I've been re-using version 1.40 for a few days.  The original issue for the Intel 750 not being recognized as the PCIE boot drive is gone.  I can reliably cold boot into Windows 7 in about 20 seconds.