[microtiger]

This is the official BIOS update with instructions from Asrock.
It is not available on the download site.

If you would like to install M.2 NVMe device (ed. in PCIe Slot), please update BIOS to P2.90Q.
Please download from attached file.

And follow the below steps to install OS with GPT mode.
1.Please set CSM(Compatibility Support Module) at disable.
path: BIOS -> Boot -> CSM.
2.Please press "F11" enter to Boot menu.
3.Please select "uefi: USB/DVD OS Image Drive" to install OS with GPT mode.
4.When you finished install OS, please reboot the system and press "Delete" to UEFI menu.
5.Please select Boot to Boot Option, and choose Boot Option#1 then select M.2 storage.

Z77EXT42.zip 4393k .zip file

 

[herka999]

Hello,

I can find this BIOS nowhere else, what is provided by ASRock support ? What does it fix exactly ?

Thank you

 

[kostasfakos]

Boot nothing gpt mode

 

[TweakerGuru]

Where is that bios from?

 

[TweakerGuru]

Quote:

Originally Posted by microtiger

This is the official BIOS update with instructions from Asrock.
It is not available on the download site.

If you would like to install M.2 NVMe device (ed. in PCIe Slot), please update BIOS to P2.90Q.
Please download from attached file.

And follow the below steps to install OS with GPT mode.
1.Please set CSM(Compatibility Support Module) at disable.
path: BIOS -> Boot -> CSM.
2.Please press "F11" enter to Boot menu.
3.Please select "uefi: USB/DVD OS Image Drive" to install OS with GPT mode.
4.When you finished install OS, please reboot the system and press "Delete" to UEFI menu.
5.Please select Boot to Boot Option, and choose Boot Option#1 then select M.2 storage.

Z77EXT42.zip 4393k .zip file

I can confirm this worked for me with a Z77 Extreme4 and Samsung 960 Pro, highest speed I get is 2800 MB/s read so far and usually 2400 MB/s sequential read, write speed is always 2100 MB/s over 300k IOPS for read/write, Thank you for that bios modification!

 

[cirthix]

I can also confirm that the previously attached 2.90Q bios works for nvme, however, it crashes every time on resuming from sleep when using an intel750 as the boot drive.

Booting from another device and trying suspend-to-ram mode shows that the i750 device does not come back properly.

After using UBU to update the integrated RST blobs (also did the integrated graphics blobs and latest microcode updates), the system now resumes from sleep.

For anyone trying NVME+Asrock z77 extreme4, consider trying the attached bios. As usual with these sorts of things, your hardware, your problem if anything goes wrong. This works for me though

.

Edit: Disabling CSM is not necessary, but booting the os install media in UEFI mode is.
For those needing to make a win10 usb installer, try using the RUFUS tool in GPT+UEFI+NTFS mode. The win7 dvdtool does not work.

mod_Z77EXT42.zip 4367k .zip file

 

[Foreax]

Hi everybody,
thank you for the bios, it works!
However I have my GPU running in PCIE 3.0 x8 and m2 adapter ASUS HYPER x4 (SSD 960 evo) at PICE 3.0 x2, instead of x4.

Well i did the following configurations in order to try, but i do not understand why my PCIEs do not work properly:

- only GPU in PCIE 2: it works PCIE 3.0 x8 (I do not remember if before it worked well)
- only GPU in PCIE 3: it works PCIE 3.0 x2 (never done before)
- PCIE2 GPU; PCIE3 m2 ssd. they work GPU PCIE 3.0 x8, SSD PCIE 3.0 x2
- PCIE2 m2 ssd; PCIE3 gpu. they work GPU PCIE 3.0 x2, SSD PCIE 3.0 x4

Could this "issue" be linked with this bios 2.90Q?
Thank you,

 

[JakkFrosted]

Does anyone suppose this 2.90Q bios is newer than the 2.90M that is available in the beta section of the ASrock site?

http://www.asrock.com/mb/Intel/Z77%20Extreme4/?cat=Beta

 

[ematlack]

Hello all - new here. I'm trying to do something very similar (run a Samsung 960 EVO on an older mobo) but I've got the extreme6, not the 4. Is there a bios available for this or need I create one?

 

[invisiond]

Hi, I've have successfully been able to boot off my NVMe drive with the modded BIOS. However, there is one issue. I do not see On Board HDMI Audio settings in the BIOS as an option anymore. Does this new BIOS disable this feature for you too? Please inquire. Thanks.

 

[incxbxs]

I was able to install win10 and boot from nvme ssd using AKASA m.2 to pciE adapter and sabrent rocket nvme ssd. (without any bios modifications, stock bios P2.90Q is working like a charm with CSM enabled) and i have zero issues.

 

[dropin_biking]

This is good news for me! Also, where to these boards like to top out at? I can't seem to get past 48 multi stable no matter the CPU voltage, wondering if it's the board or if anything on the board needs more voltage.