AMD Motherboards - X399 PG6 cannot detect 2 VGA card

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X399 PG6 cannot detect 2 VGA card

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=13693
Printed Date: 08 Aug 2025 at 9:12am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: X399 PG6 cannot detect 2 VGA card

Posted By: Koishika
Subject: X399 PG6 cannot detect 2 VGA card
Date Posted: 21 Feb 2020 at 11:52am

Dear All, I am trying to use 2 1080 GPUs on my system, but it only recognizes one. Reinstall win10 no help. Is there a way to enable both for using?

Replies:

Posted By: ASRock_TSD
Date Posted: 21 Feb 2020 at 12:12pm

Dear Koishika,

Greetings, this is ASRock TSD.

Regarding your question, we have some suggestions for you:

1. Please enter to device manager and check if the system can detect both graphics cards.

2. Please install graphics card to another PCIe slot.

3. Please make sure graphics card power cable is connected well.

4. Please install latest graphic card driver.
https://www.geforce.com/drivers

5. Please install another graphics card.

Thanks!

All the best,
ASRock TSD

Posted By: Koishika
Date Posted: 21 Feb 2020 at 2:57pm

After sending this board to dealer checking, one of my PCIE slot is broken.
Replace another one and all working well!!