Computer locked up overnight and won't post after
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=11647
Printed Date: 28 Jul 2025 at 10:49am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Computer locked up overnight and won't post after
Posted By: tekmo
Subject: Computer locked up overnight and won't post after
Date Posted: 13 Jun 2019 at 10:01pm
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specs ryzen 2700x, x470 tachi (not ultimate), G.SKILL Ripjaws V (2 x 8GB) running at 3200 cl 14, 1070 ti Quick backstory have had this computer for almost a year now and it would sometimes lock up when rebooting both on shutdown and boot up when on the windows ?śworking??wheel screen. After a couple of bios updates (last update I did was about 3 months ago) and turning off amd cool and quite it didn?™t seem to lockup as much or at all when rebooting. Also once booted never had any stuttering or freeing issues once it booted so I didn?™t care too much since I only rebooted every week or two. I get home today and it?™s locked up like it has before but this time when I hard reboot it fails to post now. The dr debug goes through what seems like the usual amount of codes but then stops at 90 for a few seconds then goes through a couple of codes (notable ones 51 and 54) then stops at 90 again indefinitely. Things I have checked cleared cmos with button on mobo and removing the battery, tried different gpu, removed all drives, booting with only one ram stick at a time. Based on the codes it looks like both of my ram sticks died and unfortunately I don?™t have access to any extra hardware to verify. Just figured I would check here to see if anyone had anything they think I should try or check before ordering new ram and going from there. |
Replies:
Posted By: Xaltar
Date Posted: 14 Jun 2019 at 6:20am
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I find it extremely odd that both RAM modules would die at the same time. I don't see your PSU listed, my first step with any kind of random multiple hardware failure is to try a different PSU. If that doesn't help then my next suspect would be the CPU, more specifically, the IMC (integrated memory controller). Unless you were running your RAM with silly high voltages (1.5v+) I don't see how both sticks would just up and die. It is possible but not very likely. Your RAM should have a lifetime warranty ( https://www.gskill.com/en/warranty ) so you should be able to get it replaced. In which case, before you spend money on replacing anything, RMA that. If, after trying new RAM you still have the same issue the next step is to RMA the CPU. Given the symptoms and your board being a Taichi (above average component quality), the last thing I would suspect would be the motherboard. My guess would be PSU or CPU. Let us know how it goes and good luck. ------------- 
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Posted By: Xaltar
Date Posted: 14 Jun 2019 at 6:30am
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OK, a quick search yields that the 90 debug code is connected to the Boot process, more specifically, initializing the boot process. Disconnect everything from your board except for CPU, 1 stick of RAM and your GPU. Disconnect all drives from the board AND the PSU as well as anything else connected to the PSU. Pull the power from the PSU (disconnect from wall), then pull the CMOS battery, press the power button for 10 seconds and then push the clear CMOS button for 10 seconds. Leave the system disconnected from power for 1 hour then see if you can get POST. If all goes well and you can get into the UEFI then start connecting things back one at a time, testing between to see what caused the issue. -------------
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Posted By: tekmo
Date Posted: 14 Jun 2019 at 6:36am
| Thank You for the reply. The power supply in the system is a Seasonic FOCUS Plus 850 Gold and I haven't tested another power supply but I will give that a try. I thought it would be strange that both ram sticks died at the same time since I only use the xmp profile for them. But the dr debug codes 51 and 54 is what made me think that is the issue given this is what it kicks out when trying to boot (https://youtu.be/Y9_NFeBPtek) then when it hits code 90 the second time it just sits there. |
Posted By: tekmo
Date Posted: 14 Jun 2019 at 6:37am
| As I was typing the other reply I had actually just started trying this just waiting with the cmos battery out without power connected. |
Posted By: tekmo
Date Posted: 14 Jun 2019 at 2:20pm
| Unfortunately after doing this I am still getting the same post codes in the video I posted. |
Posted By: Xaltar
Date Posted: 14 Jun 2019 at 5:28pm
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Ouch, well, then it's time to try what I suggested in my original reply: 1. Try another PSU, Seasonic is excellent but not immune to failure 2. Either test the RAM in another system or just RMA it to G.Skill 3. RMA the CPU 4. RMA the Motherboard if it's still under warranty Obviously try one at a time starting from 1 and moving down the list until the issue is resolved. Also, just an FYI, the 90 code is the only one that matters, the debug display will cycle through all the codes while POST is under way, each code signifying a particular process so when one gets "stuck" that indicates the process that failed. Checking what the code is for gives you a solid lead on what the problem is  -------------
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Posted By: tekmo
Date Posted: 14 Jun 2019 at 8:36pm
| Got it. Thank you for the advice and help. |
Posted By: tekmo
Date Posted: 02 Jul 2019 at 7:55pm
| Just to update on this topic it ended up being the Processor. |
Posted By: Xaltar
Date Posted: 03 Jul 2019 at 3:15am
Ouch, I hope you got a warranty replacement. Thanks for letting us know what the problem turned out to be  -------------
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