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Motherboard won't post/Flashing White light

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Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
Printed Date: 25 Feb 2024 at 1:02am
Software Version: Web Wiz Forums 12.04 -

Topic: Motherboard won't post/Flashing White light
Posted By: Acovarru91
Subject: Motherboard won't post/Flashing White light
Date Posted: 06 Jan 2019 at 10:50am
I updated my asrock x370 killer sli to version 3.0 via the BIOS install and after it "successfully" installed, my motherboard won't post. There is a flashing white light blinking underneath my chipset and no information online tells me what that means. All my hardware was working prior to the update and here is a list of my hardware:
Asrock x370 killer sli
Evga GTX 1070
Corsair Vengeance LPX
AMD Ryzen 2700x
OCZ Fatality 750W

I have reseated my CPU, ram, and although not recommended after updating, cleared CMOS.
If I could figure out what to do that would save some work and headaches.

Posted By: xhue
Date Posted: 06 Jan 2019 at 9:39pm
Try taking out 1 stick of RAM. Take out the PSU 230V/110V cable, take out the button cell battery (CMOS one). Press power on button for 15 sec.

Put the battery back in, plug in the power cord in the PSU. Try booting again.

If this doesn't help, I'm afraid you may need another mobo.

P.S. Oh, my! BIOS v3.00?!?! This version doesn't support Ryzen 2! You need v4.50 or later for that CPU!

Posted By: naarv
Date Posted: 23 Sep 2021 at 2:58pm
Hey so my PC randomly crashed and I'm getting the same flashing lights and it won't post. How did you manage to fix it? Thanks.

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