Question about PCIE lanes and SATA ect.
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=27057
Printed Date: 25 Jul 2025 at 10:00pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Question about PCIE lanes and SATA ect.
Posted By: nightshadexr
Subject: Question about PCIE lanes and SATA ect.
Date Posted: 07 Dec 2023 at 6:28am
I have an ASROCK X570 phantom gaming 4, coupled with a 5800x. I understand that 16 lanes run straight to the gpu, 4 to the first M2 slot, and 4 to the chipset.
I am currently running 2 2.5" SSD's to 2 of the SATA ports, and also running a USB expansion card to one of the x1 slots.
My question has 2 parts: First, will i be able to run a 2nd M.2 in the 2nd M.2 slot (total: 2 M.2's, 2 2.5" SATA SSD's, and a PCIE x1 USB card)
Second, does the 2nd M.2 slot run through the chipset? Will it affect the ability to run 2 SATA SSD's and the x1 USB card?
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Replies:
Posted By: eccential
Date Posted: 08 Dec 2023 at 1:21am
The only PCIe slot that is directly connected to the CPU is the first x16 slot.
The only m.2 slot that is directly connected to the CPU is the first M.2 slot.
Everything else is connected through the X570 chipset.
https://www.techpowerup.com/img/HMRSMmd3jbU2CVX0.jpg" rel="nofollow - https://www.techpowerup.com/img/HMRSMmd3jbU2CVX0.jpg
X570 has plenty of options. It looks like that board has fully dedicated 8 SATA ports, so they will not be affected by anything else. The only shared resource appears to be Thunderbolt expansion and the SATA portion of the second m.2 slot.
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