AMD Motherboards - My nvme running only in PCIe 3.0x2 instead of PCIe

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My nvme running only in PCIe 3.0x2 instead of PCIe

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=107845
Printed Date: 08 May 2025 at 5:15pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: My nvme running only in PCIe 3.0x2 instead of PCIe

Posted By: Skimtle
Subject: My nvme running only in PCIe 3.0x2 instead of PCIe
Date Posted: 07 May 2025 at 9:35pm

PC specs: ASRock B450m HDV R4.0 | Ryzen 3 3200g | RX 580 2048sp | ADATA XPG SX8200 | 3 SATA storage with 1 being a sata ssd.

I can't set it to PCIe 3.0x4 it was running x4 a few days/week a ago but now its running in x2 speed so Im getting only 1700mb/s instead of 3400mb/s

CrystalDiskInfo: https://imgur.com/a/9RQhNGe" rel="nofollow - https://imgur.com/a/9RQhNGe

The nvme drive is 5 months old and mobo is about 7 months old

I have tried updating my bios to the latest and tinkered with the settings and its still at PCIe 3.0x2. Tried installing windows on my other drive to see if my NVMe still runs PCIe 3.0x2 in there and it still runs like that. Tried reinstalling/reseating the NVMe and with still no avail.

I also accidentally dropped the NVMe ssd and has noticable fraying (the damage: https://imgur.com/a/CHCcU3g" rel="nofollow - https://imgur.com/a/CHCcU3g ) but the drive still works normally and getting advertised speed.

I don't have a backup NVMe drive to see if it was the mobo causing the issue since there are a post here with similar problem: https://forum.asrock.com/forum_posts.asp?TID=18210&title=nvme-ssd-running-pcie-1-0-instead-of-3-0" rel="nofollow - https://forum.asrock.com/forum_posts.asp?TID=18210&title=nvme-ssd-running-pcie-1-0-instead-of-3-0