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Debug code 40 on x370 taichi

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Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
Printed Date: 18 Jun 2024 at 11:52pm
Software Version: Web Wiz Forums 12.04 -

Topic: Debug code 40 on x370 taichi
Posted By: Zschmitt95
Subject: Debug code 40 on x370 taichi
Date Posted: 20 Dec 2017 at 1:44pm
" rel="nofollow - I get the debug led code 40 constantly, all I can find is that it's memory issues, I've reseated modules and cpu, my memory runs perfectly at rated speed, no issues in games, aida, or prime95
memory is g.skill trident z 16gb 3200mhz cl 14

Anyone know more? Should I worry about it?

Posted By: kerberos_20
Date Posted: 20 Dec 2017 at 3:58pm
01 - 54 (except 0d), 5A - 60: Problem related to memory. Please re-install the CPU and memory then clear CMOS. If the problem still exists, please install only one memory module or try using other memory modules.

i have those rams too...mobo has cold boot issues at rates over 2933mhz
u may try to fidle with vsoc or vddo_vddp voltages to have less fails at cold boot

Posted By: MisterJ
Date Posted: 20 Dec 2017 at 11:36pm
" rel="nofollow - Zschmitt95, that is a progress code and nothing to worry about:
"40 - OEM post memory initialization codes"
Please see here:
Enjoy, John.

Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD

Posted By: Zschmitt95
Date Posted: 21 Dec 2017 at 2:19pm
" rel="nofollow - Same with 24? These are the only two I've seen, and as I said. I've had no issues with the system still.

Apologize for the noobish questions, never had a debug led on board before.
I appreciate the help!(:

Posted By: kerberos_20
Date Posted: 21 Dec 2017 at 3:22pm
well...if u pass post and can boot, u shouldnt worry about debug codes...
they are here in case your system freezes at some point, so u can see why it failed
just because it shows you some number (even for longer period) doesnt mean its bad
in my case i had long waiting time on b4 post (usb init) and found out memory card reader at fault here, but either way it was working, just it prolonged boot time about 10 seconds until i replaced it with another one (as it had some random drive disconnects in windows)

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