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Sometimes computer doesn't bootup

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=14601
Printed Date: 23 Nov 2024 at 3:55pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: Sometimes computer doesn't bootup
Posted By: Leblob
Subject: Sometimes computer doesn't bootup
Date Posted: 07 Jun 2020 at 3:41pm
Ryzen 1600
2060 RTX
ASROCK AB350 Pro4
2x8 2400

Sometimes when I try to startup my computer or restart it the fans and LEDs turn on, but the screen stays black without even showing the bios screen. The solution is to hold the power button down and turn it on again, hoping that it will work on the next try. The times it works and doesn't is almost random but it happens multiple times a day. Another issue that is less common is when I turn off my PC from windows but everything in the computer still runs with the LEDs and fan. And if I remember correctly the lights on the motherboard DO NOT turn on during the fail boots.



Replies:
Posted By: Squirrelville
Date Posted: 07 Jun 2020 at 11:24pm
it's been a little while since I was really in the game, but I have experienced issues like what you are describing. It was not like I ever specifically solved the problems, (like found that one bad setting or one bad part) I would disassemble the system clean everything and reassemble and stability would return. I would chalk it up to contacts that did not make consistent connections.

The most problematic (I feel like) spot is the memory contacts?

hope this helps

good luck with it



Posted By: cx5
Date Posted: 08 Jun 2020 at 3:29pm
Originally posted by Leblob Leblob wrote:

Ryzen 1600
2060 RTX
ASROCK AB350 Pro4
2x8 2400

Sometimes when I try to startup my computer or restart it the fans and LEDs turn on, but the screen stays black without even showing the bios screen. The solution is to hold the power button down and turn it on again, hoping that it will work on the next try. The times it works and doesn't is almost random but it happens multiple times a day. Another issue that is less common is when I turn off my PC from windows but everything in the computer still runs with the LEDs and fan. And if I remember correctly the lights on the motherboard DO NOT turn on during the fail boots.


Sounds like DDR4 not set correct to the motherboard and CPU, I think specifically CAD_BUS, hence I recommend you use Dram calculator and go through the official steps recommended by 1usmus = https://www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/

Also the procODT is very important to get correct.

If both CAD_BUS and procODT are on botherline, then it will exactly happen as what you wrote, sometimes ON sometimes no ON. On some PCs it would beep warning 3 times then boot. Also a setting mismatch as CAD_BUS and procODT in bios. I think.

Welcome any other gurus to fill in the gaps.

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x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz



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