https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Mon, 13 Apr 2026 07:35:56 +0000 Sun, 14 Jul 2024 05:09:45 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=50152 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133090&title=cpu-and-dram-red-lights#133090 Author: Xaltar
Subject: 50152
Posted: 14 Jul 2024 at 5:09am

A voltmeter is not going to tell you everything you need to know about a PSU. If
the 12v rail is rippling too much the board will not allow POST for example. I have
often had PSUs test out fine on the bench with a multimeter but still not function
correctly in a system. Be it load causing droop or ripple (fluctuation) or even
over/under amperage. The only way to rule out a PSU as faulty is to test with another,
known good PSU or testing it with an oscilloscope for load droop and ripple.
In my experience, it's almost never the motherboard unless there was a dead short
somewhere or a blown capacitor etc. In other words, usually, when the motherboard
goes there are obvious signs. Going out with a whimper is usually the PSUs M.O.


Hope this helps.]]> Sun, 14 Jul 2024 05:09:45 +0000 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133090&title=cpu-and-dram-red-lights#133090 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133088&title=cpu-and-dram-red-lights#133088 Author: Eerie_Von
Subject: 50152
Posted: 14 Jul 2024 at 3:38am

Checked the power supply and I am getting correct voltage from all the pins. Looks like it is my mobo...]]> Sun, 14 Jul 2024 03:38:21 +0000 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133088&title=cpu-and-dram-red-lights#133088 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133076&title=cpu-and-dram-red-lights#133076 Author: Eerie_Von
Subject: 50152
Posted: 14 Jul 2024 at 12:31am

...those ?? Shouldn't have been there...pay them no mind.]]> Sun, 14 Jul 2024 00:31:49 +0000 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133076&title=cpu-and-dram-red-lights#133076 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133075&title=cpu-and-dram-red-lights#133075 Author: Eerie_Von
Subject: 50152
Posted: 14 Jul 2024 at 12:30am

I'll check the power supply. The system is fairly new, built in April of this year. So I was hoping that wouldn't be an issue. But that appears to be my next step.
Appreciate the reply. ??]]> Sun, 14 Jul 2024 00:30:46 +0000 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133075&title=cpu-and-dram-red-lights#133075 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133073&title=cpu-and-dram-red-lights#133073 Author: Xaltar
Subject: 50152
Posted: 13 Jul 2024 at 10:56pm

Solid RAM and CPU being on could mean either a dead CPU or, more likely, a dead
power supply. If the 12v provided by the PSU is too low or is drooping too much
when loaded the lights will remain lit to indicate the CPU was unable to initialize. ]]> Sat, 13 Jul 2024 22:56:18 +0000 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133073&title=cpu-and-dram-red-lights#133073 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133024&title=cpu-and-dram-red-lights#133024 Author: Eerie_Von
Subject: 50152
Posted: 13 Jul 2024 at 9:22pm

So like the subject says I'm getting two red solid lights on cpu and dram. This started when I went to restart the system because the mouse pointer had vanished. Once I did then this problem started. I've tried re-seating every component, clearing the cmos, and booting with minimal hardware, but still same issue. When I power the rig on all the fans come on, like everything is getting power. So I don't know if this a power supply or mobo problem...or something simple that I've missed.
Any help would be great.
I've got a B550 phantom, with Ryzen 5 5600, and corsair vengeance ram. ]]> Sat, 13 Jul 2024 21:22:43 +0000 https://forum.asrock.com/forum_posts.asp?TID=50152&PID=133024&title=cpu-and-dram-red-lights#133024