B450M pro4: server setup with ECC memory
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=11237
Printed Date: 27 Jul 2025 at 7:55pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B450M pro4: server setup with ECC memory
Posted By: puchuu
Subject: B450M pro4: server setup with ECC memory
Date Posted: 02 Apr 2019 at 12:26am
|
Hello. I saw on reddit that ASRock B450 pro4 supports ECC memory for ryzen. I want to build a small server with 12 HDD and 1 m.2 nvme SSD with ryzen 2600/2600e. I want to install:
The problem is that ASRock B450 pro4 (atx version) has a text in specification: If M2_1 is occupied, PCIE4 will be disabled. I don't want to disable PCIe x4, there will be a video card inside it. I don't want to install nvme SSD into second x2 slot. I don't want to drill a hole in x1 slot.  Is it possible to disable other PCIe lines instead of x4 slot? Than I opened specification for B450M pro4 and I can't see text about M2_1 and PCIe x4. So I should buy micro ATX version instead of ATX? Thank you. |
Replies:
Posted By: puchuu
Date Posted: 02 Apr 2019 at 12:56am
If this question won't be resolved I will buy some asrock x470 solution without this limitation. But it is expensive. 
|
Posted By: xhue
Date Posted: 02 Apr 2019 at 1:36am
|
Nope, it's a HW limitation of this chipset. There are no workarounds. It's not just an ASRock's thing. Sadly, you'll have to reach deep into your pocket. |