J3355B-ITX 5 beeps at boot
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=18591
Printed Date: 27 Jul 2025 at 12:02pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: J3355B-ITX 5 beeps at boot
Posted By: shijo
Subject: J3355B-ITX 5 beeps at boot
Date Posted: 09 Apr 2021 at 10:31pm
Hello,
I've just intalled that new board, and I'm getting 5 beeps at boot stage. Which shall mean CPU error?
In another post here, I've read it may be related to missing VGA card. But display hardware is embedded on that mobo (can access BIOS settings, and my OS boots). No error is shown at the display, it beeps, then boots.
The BIOS seems to be the latest one. I tried to boot without the RAM, then I get RAM beeps... The RAM is Crucial CT51264BF160BJ 4Go DDR3 1600 MHz CL11, I assume it is DDR3L, must be supported.
It only beeps at boot, then boots Linux and runs stable without any issue.
Shall i ask my reseller for mobo replacement? Or did I miss some options?
Best regards
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Replies:
Posted By: shijo
Date Posted: 09 Apr 2021 at 11:55pm
Checking further, I noticed it beeps 5 time if no VGA monitor is plugged in. Now I beleive it is a feature.
But that box shall be headless (a server). And I see no BIOS option to change this behaviour.
Any hints would be welcome.
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Posted By: shijo
Date Posted: 22 Apr 2021 at 2:13am
Fixed it, using a VGA dummy plug, like described here, with 75Ohm resistors:
https://www.geeks3d.com/20091230/vga-hack-how-to-make-a-vga-dummy-plug/" rel="nofollow - https://www.geeks3d.com/20091230/vga-hack-how-to-make-a-vga-dummy-plug/
Now it boots without those annoying beeps. I used many kind of systems over the past 30 years, this the first one needing such a patch for headless successfull POST...
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