AB350Pro4 boots after shutdown butnot after reboot
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=7401
Printed Date: 18 Jul 2025 at 4:03pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: AB350Pro4 boots after shutdown butnot after reboot
Posted By: vazma
Subject: AB350Pro4 boots after shutdown butnot after reboot
Date Posted: 23 Jan 2018 at 2:28am
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Hi, I have a pc with:
I have installed Ubuntu 16.04 (UEFI) and when I am rebooting the machine it stuck with black screen during the booting. I cant even see the BIOS screen. I can boot only after a shutdown by waiting a few seconds before press the power button to boot up. Its a new setup with a clean OS. Thank you all, vazma
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Replies:
Posted By: datonyb
Date Posted: 23 Jan 2018 at 3:18am
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" rel="nofollow - well im a bit stumped usually the issue is reversed eg warm boot ok, cold boot sometimes fails have you tried to narrow down what may be causing it example will it reboot out of bios and back into bios ? this may well show if the operating system is causing an issue ------------- [url=https://valid.x86.fr/jpg250]  [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: vazma
Date Posted: 24 Jan 2018 at 6:09am
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" rel="nofollow - Hi, Well I tried to remove the motherboard from the chassis to ensure that there is any short-circuit, I switched motherboard slots and I removed also all the harddisks just to boot in UEFI I will write down here some notes while I am diagnosing and testing the motherboard[Update Frequently]: It can do up to 2 successful consecutive reboots after a hard shutdown (boot-> UEFI->reboot-> UEFI->reboot->dark screen) Then it needs to hard-boot (power off remove cable wait and boot) in order to log in UEFI. Weird thing: While I enabled the option to Beep during boot It never beeps. (I hope is not a case issue) Tried to change Freq of the memory to 2133 MHz but didnt help. Question: Is it normal that the usb devices leds are ON (lights open i.e usb-sticks, mouse) while the PC is in OFF state? Also I have to mention that when I was running OS system (Ubuntu 16.04) I had very often freezes and I had to hard shutdown to recover. The system was quite new so you should consider it as clean installation (> month) Cheers, Vasilis
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Posted By: kerberos_20
Date Posted: 24 Jan 2018 at 6:18am
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in that case try to set 2133 mhz on ram and see if that helps |
Posted By: vazma
Date Posted: 24 Jan 2018 at 6:42am
I tried and still nothing..
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kerberos_20 wrote:Posted By: vazma
Date Posted: 25 Jan 2018 at 7:02am
| " rel="nofollow - Another update that i changed graphics card and now is able to reboot more often but sometimes fails to reboot as before. Shall i consider it as graphics card issue? |
Posted By: vazma
Date Posted: 31 Jan 2018 at 5:11pm
| Eventually I sent it back and they gave me a new one. Now everything is ok! |