https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 05 Apr 2026 11:15:01 +0000 Sat, 11 Jul 2020 20:51:57 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=14858 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=14858&PID=77186&title=j4105-boot-problem#77186 Author: mmassimo
Subject: 14858
Posted: 11 Jul 2020 at 8:51pm

Thank you for your reply.
For poweroff I mean power cord disconnected.
So your board has the same behaviour as mine, it seems something by design.
I've to correct my first post. When board shutdowns, it happens just before the beep.
I performed a test with a PicoPSU, but I got the same result as with ATX psu.]]> Sat, 11 Jul 2020 20:51:57 +0000 https://forum.asrock.com/forum_posts.asp?TID=14858&PID=77186&title=j4105-boot-problem#77186 https://forum.asrock.com/forum_posts.asp?TID=14858&PID=77076&title=j4105-boot-problem#77076 Author: NNEERR
Subject: 14858
Posted: 08 Jul 2020 at 7:08am

It's not clear to me what "poweroff time" means. "Soft off" or "Mechanical Off"?

If it's "Mechanical Off" it's the behavior of this board also at me (where I don't know if this is works-as-designed or just a strange behavior; I also don't like it!).

I think it is PSU related if it is about "Soft Off".
It seems the PSU doesn't provide the necessary power to the board when switched off ("Soft Off", state G2/S5, see https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface#Global_states).
Maybe it provides enough power only for around 10 minutes (e.g. by a filled cap or so).


BTW: My boards are working fine with internal DC/DC boards (like "Pico PSU") and my external AC adapters (Inter-Tech cases with included DC boards).]]> Wed, 08 Jul 2020 07:08:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=14858&PID=77076&title=j4105-boot-problem#77076 https://forum.asrock.com/forum_posts.asp?TID=14858&PID=76992&title=j4105-boot-problem#76992 Author: mmassimo
Subject: 14858
Posted: 05 Jul 2020 at 12:33am

My J4105 (fw 1.40) has a strange behaviour at the boot.
The first time I boot after a prolonged poweroff time, the board shutdowns before the beep and just before "Press F2.... etc".
If I press the power button again, everything is fine.
If I reboot from inside the os (Win10-64), everything is fine.
If I shutdown the system, disconnect the power cord for a couple of minutes, connect it again and then power on the board, everything is fine.
But if that pause becomes 10 minutes, the problem appears again.
I suspected a psu related problem, so I tested with another psu, no results.
I made a ClearCMOS, no fix.
It seems as a capacitor need to be charged first, but the board is new and there's no cap with evident signs of failure.
Any idea?]]> Sun, 05 Jul 2020 00:33:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=14858&PID=76992&title=j4105-boot-problem#76992