**SOLVED** AB350M Pro 4 UEFI Settings Black Screen

Here is the updates I currently have installed...


http://imgur.com/a/LpU42

Edited by yue0707 - 11 Jul 2017 at 3:39pm

Another option I am exploring is installing CENTOS 7 or Debian-Like OS and having Grub manage the EFI Partition/Boot instead of Windows. Perhaps that would be a workaround to this issue until everything is resolved.


Or return the Mobo to Microcenter a go with another brand and scale up into the X series Chipset. It would be a shame though because this Mobo is pretty solid for the price.

Edited by yue0707 - 11 Jul 2017 at 4:08pm

yue0707 wrote: [URL=][/URL][URL=][/URL][URL=][/URL]Hello all, I've been experiencing some odd behavior of the BIOS on the Asrock AB350M Pro 4 on BIOS Version 2.5. So before I had an issue where I was running my Intel RAM Giel Evo Potenza 16GB of DDR4 @2133MHz (rated for 2400MHz on Intel) that was having issues posting and restarting several times before finally booting. So I upgraded to Kingston Hyper X Fury RAM as listed on the motherboard compatibility section and I was able to enable to XMP and overclock to 2666MHZ (stock clock 2400MHz) w/1.35v ram voltage. HOWEVER, I am having an issue where I cannot boot into the UEFI BIOS. The computer boots as normal, but with just a black screen until Windows boots up. If I press ANY key's during the boot process. POST will hang and i'll just get a constantly refreshing black screen that just turns off after a while. So, I reimaged Windows 10 and lo and behold the post screen comes back! I was excited to see progress. That is, until Windows had updated to this new version of its OS and ran some updates. Now the POST Asrock Logo doesn't show and it seems as if it was using Fast Boot to the OS, even though Fast Boot is disable. Nothing on the OS end or even Asrocks Boot to UEFI Tool will get me into the BIOS nor through Windows Boot to UEFI. Nothing gets me into the BIOS except pulling the CMOS jumper to reset and the post option screen will come up ONCE. SOOO i'm inclined to believe a Windows update having something to do with the UEFI is causing this issue. Like I said, when I first installed Windows pre-version 1703, it would post fine, after the 1703 update this BIOS screen would disappear and it would be impossible for me to boot into BIOS without resetting the CMOS. Any idea's or settings in the BIOS I should change? System Specs: CPU: AMD Ryzen 5 1600 6-Core 12-Thread CPU (Stock Cooler) RAM: 8GB Kingston Hyper-X Fury DDR4 2400MHz RAM in slots B and D running Dual Channel PSU: Corsair TX650 Full Modular PSU GPU: AMD Radeon RX470 - Reference Edition MOBO: Asrock AB350M Pro 4 PCI-E NVMe SSD: Samsung 960 Evo 250GB SSD (OS Installed on this) HDD: Toshiba 1TB 7200RPM SATA Hard Drive WIN: Windows 10 Pro ver. 1703 w/ latest updates BIOS: Latest Asrock BIOS ver. 2.5

I have experienced a similar issue with my Ryzen system, the inability to use the Restart to UEFI utility to get into the UEFI/BIOS. But I have always been able to press the Del key during POST to get into the UEFI, and that continues to work. That has been that way for months now, with earlier versions of Windows 10, so I can assure you this is not a new thing with Restart to UEFI and Win 10.

What keyboard are you using, and does it have its own software/driver?

The Restart to UEFI program is based on a Windows feature introduced in Windows 8, that allows the PC to restart into the firmware interface as MSoft is calling it. I have noticed that Restart to UEFI will work if my memory is NOT overclocked beyond my DDR4 memory stock speed of 2400. That behavior has continued through the two AGESA updates. I am still not certain whom is at fault here. I have used the Restart to UEFI program for years with many ASRock Intel chipset boards, and an earlier AMD FX 900 series chipset board. That was with Windows 8.1 and 10, and it always worked perfectly. So I am inclined to believe it is some broken interaction between Windows and Ryzen, but I cannot prove that... yet.

You mentioned the Fast Boot feature in the UEFI/BIOS, but MSoft has another vaguely similar feature called Fast Startup. That feature only works from a cold boot/shutdown situation. In the past it could be disabled from the "Choose what the power buttons do" option in the Power Options screen in Windows 10. But I just noticed that MSoft has yet again changed that screen slightly, and that option is no longer available to configure in that screen. I have yet to find it, but haven't searched for it much yet. Why does MSoft keep changing things (dumbing them down) for no reason except to change them!

It's strange that the POST screen display changed after the new Windows 10 installation. Did you happen to clear the UEFI/BIOS before you installed Win 10 again? The Full Screen Logo option in the Boot screen should be enabled by default and remain that way. That is easy to check... if you could get into the UEFI without clearing the CMOS.   So you get a completely black screen during POST? If I have the Full Screen Logo option disabled in the UEFI, I still get a minimal display of text shown during POST, and a few of the POST codes are also shown.

What are you using for a monitor? A standard PC monitor or possibly a TV?

Did you install any drivers yourself, or is it all default Windows 10 drivers and Windows update drivers?

Your Win 10 installation seems to be working fairly normally. When you installed Win 10, what did you use, an optical disk or ISO file on a USB flash drive? Since you are using a 960 EVO NVMe SSD, the entry for the installation media in the boot order must have been the "UEFI: <device name>", which will give you the necessary UEFI booting installation. Did you have any other drives connected to the PC during the Win 10 installation?

I'm not sure what is causing your issue, but one thing you can try is disabling the AM4 Advance Boot Training option in the OC Tweaker screen. Do you have any UEFI settings you changed from their defaults? Not that I'm implying that would be wrong, just curious.

I'm experiencing something very similar to what you described with bios revision 2.50 on AB350M pro4. 

After updating to the new bios, I am completely unable to post after setting any kind of OC options for my CPU. My ram is running at it's rated 2400 and haven't tried to OC it. [without OC changes / normal auto it will post without issues]

If I change from auto to manual in OC tweaker it just don't post after saving changes and exiting. It hangs on a black screen similar to how you described. I haven't let it just sit there so I'm not sure if Windows would eventually boot, as i assumed it didn't post period. 

I haven't messed with Advanced Boot Training or the HD UEFI options you described, but like you I have to reset cmos from the jumper each time I get this black screen hang. It's forced me to OC only from Ryzen Master / wait for next bios update. 

Does this sound similar in any fashion? I will take a look at changing those options you described. 

Edited by sobekite - 12 Jul 2017 at 5:43am

Here is the link to the ASRock A Tuning tool. Id also reccomend adjusting CPU fan speeds from it too as for some reason it doesnt kick up the voltage when things start getting hot. This tool will work to adjust fan speed to keep the CPU cool.

http://asrock.pc.cdn.bitgravity.com/Utility/A-Tuning/A-Tuning(v3.0.138).zip