Intel Motherboards - Z77 Extreme4 p2.90Q wont boot uefi usb

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Z77 Extreme4 p2.90Q wont boot uefi usb

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=14678
Printed Date: 19 Jul 2025 at 1:48am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z77 Extreme4 p2.90Q wont boot uefi usb

Posted By: B-Man
Subject: Z77 Extreme4 p2.90Q wont boot uefi usb
Date Posted: 13 Jun 2020 at 11:45am

I broke my bcd file and have been trying to fix it but nothing was working and then I found to fix I had to boot with a uefi drive.
I swapped out my win7 recovery disc for a uefi formatted by rufus usb but it wont boot it.
If i select the uefi: usb stick option it just flashes the screen and nothing happens.
If i select usb: usb stick it says theres nothing on there!
Why wont the asrock uefi setup utility open my uefi bootable media?

Replies:

Posted By: B-Man
Date Posted: 13 Jun 2020 at 11:46am

I should add I have tried different versions of rufus, different sticks and different usb ports

Posted By: LewisH95
Date Posted: 13 Jun 2020 at 7:39pm

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.