B450M Pro4-F XMP not working
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=13897
Printed Date: 08 Aug 2025 at 6:38pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B450M Pro4-F XMP not working
Posted By: dragonfyre79
Subject: B450M Pro4-F XMP not working
Date Posted: 23 Mar 2020 at 7:17am
I just upgraded to an AMD platform and purchased the B450M Pro4-F board and ram that states it supports 3200mhz speed, yet I get a blue screen when trying at that setting. I can manually set it to 3166 and it's fine.
The board is currently on BIOS version 1.60 and I'm using the Ryzen 1600 AF cpu.
The RAM is Corsair Vengeance LPX 16GB kit Model CMK16GX4M2B3200C16
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Replies:
Posted By: ThreeDee
Date Posted: 23 Mar 2020 at 9:13am
the 1600 AF is essentially a lower clocked 2600 and the 2000 series memory controller can be finicky. You can try manually setting the memory voltage to 1.35 if you haven't already and then try manually setting memory to 3200
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|Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15|
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Posted By: dragonfyre79
Date Posted: 24 Mar 2020 at 5:45am
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The voltage was already at 1.35 by default and when I manually set the speed to 3200, it bluescreens
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Posted By: tuk4ngunduh
Date Posted: 25 Mar 2020 at 12:41am
hi, my RAM is 3200Mhz but BIOS only detected 2666Mhz.
I tried using the XMP, the profile said DDR4-3200 16-18-18-36 1.35V but the frequncy still state DDR-2666
I used CPU-Z it's on 2666Mhz
anybody else have the same problem/fixed this problem?
my BIOS version 3.50
my CPU is Ryzen 5 1600
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Posted By: ThreeDee
Date Posted: 25 Mar 2020 at 12:44am
Try manually setting the memory to it's rated speed instead of using the xmp profile
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|Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15|
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Posted By: dragonfyre79
Date Posted: 25 Mar 2020 at 8:34am
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Well, I figured out my issue. I updated the BIOS and now my system is running stable at the speed rated for the RAM.
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Posted By: tuk4ngunduh
Date Posted: 26 Mar 2020 at 6:30pm
hi, i updated the BIOS to 3.90 still it doesn't work
i even exchange it to a more expensive RAM today, XMP blue screen, manually blue screen.
the best i can make it stable is manually at 2933Mhz
even if I set it to 3000Mhz it will go blue screen
my conclusion that B450 Pro4 doesn't support 3200Mhz?
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Posted By: bfollett
Date Posted: 26 Mar 2020 at 9:15pm
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I have the same motherboard with a 2600x and I'm running my memory at 3400 C14. The first generation Ryzens only officially support RAM up to 2667. Many can run 3200 but not all. I've heard it referred to as the Silicon Lottery. You may not get your individual CPU to reach 3200, but it is possible. There are no guaranties with overclocking.
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