AMD Motherboards - Error I/O on sata port on B450 Pro4

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Error I/O on sata port on B450 Pro4

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=17959
Printed Date: 12 Nov 2025 at 3:23pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Error I/O on sata port on B450 Pro4

Posted By: Loverdrive
Subject: Error I/O on sata port on B450 Pro4
Date Posted: 29 Jan 2021 at 9:38pm

Hi,
i had some problems when tried to perform some action on a ssd disk (I formatted a partition with mkfs.ext4 on linux, and i executed trim on the ssd).
Those actions ended with "I/O remote error".

If i check disk SMART i noticed also this parameter:


ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
183 SATA_Interfac_Downshift 0x0032   100   100   000    Old_age   Always       -       23

So i tried to change sata port to which the disk is connected, and i had no more I/O errors on formatting partition.

I revert the situation, and i have still errors.

I think there could be some problems with sata port, is there a way to perform a deeper test and to "certificate" it?

I also noticed from the motherboard manual that the sata port which gives me errors is named "SATA3_A1" and the sata port that works is named "SATA3_4".
Is there a reason why there is an "A" before the number? Are these a "special" port?

Or maybe the problem could be a bios setting matter?

Thank you

Replies:

Posted By: Loverdrive
Date Posted: 04 Feb 2021 at 6:13am