J3455 can't start, Power and HDD LEDs are flashing
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=15720
Printed Date: 03 Jul 2025 at 9:35pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: J3455 can't start, Power and HDD LEDs are flashing
Posted By: yuriy_Spb
Subject: J3455 can't start, Power and HDD LEDs are flashing
Date Posted: 01 Sep 2020 at 9:42pm
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My J3455B ITX can not start from time to time. No LED, no cooler of Power Supply, no boot. Or I see fast and alternately blinking Power LED and HDD LED after plug-in the 220 Volts connector to outlet. And no start after that. Than I'm unplugging it from 220 Volts, wait 1-2 minutes - and it can start well by normal short press to Power button. Or try to push Power short-short-long pressing and it begin to boot. Factory reset of UEFI can not fix this problem. What warning code does it mean - fast and alternately (1-2-1-2-1-2-1-2-1...... twice per 1 second) blinking Power LED and HDD LED? I even change ITX-case and PSU from InWin 160W to Foxline 220W - but problem are same. From time to time (1-2 times per week) no start, no boot Last FW 1.9. |
Replies:
Posted By: Xaltar
Date Posted: 01 Sep 2020 at 11:19pm
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Try replacing your SATA cables with new ones, bad SATA cables can cause issues. Remove and reinstall everything on the board, RAM, drives etc. It could be intermittent connection causing problems. Also clear CMOS by removing the battery and leaving the system unplugged from 220v for 2 hours or so and see if that resolves the issue. It could be an RTC error which can only be reset by pulling the CMOS battery like I mentioned. If none of that helps then try contacting ASRock Tech Support: https://event.asrock.com/tsd.asp ------------- 
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