B550 Phantom Gaming 4/ac iGPU and GPU
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=113288
Printed Date: 10 Aug 2025 at 6:35am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B550 Phantom Gaming 4/ac iGPU and GPU
Posted By: sungp77
Subject: B550 Phantom Gaming 4/ac iGPU and GPU
Date Posted: 09 Aug 2025 at 11:45pm
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Hey there. Looking to get some help on my situation. I hope I'm at the correct place. Just got done building a new computer with B550 Phantom Gaming 4/ac and Ryzen 5 5600GT. What I realized afterwards was that the mobo only has total of one HDMI output and I need two output for two monitor setup. I had an old Mobility Radeon HD 5000 series (don't remember the exact model) laying around, so I thought I'd give it a go, but with no luck. I have two monitors hooked up; the main one to B550 and a second one to 5000. Here are the combination of results I get: 1. Set the BIOS to default to "internal" graphics and my main monitor works great with B550 HDMI. Can't get the second monitor to turn on, even though the 5000 is recognized in Device Manager. 2. Set the BIOS to default to "external" graphics and my second monitor that's hooked up to 5000 works, although I cannot get it to update the driver properly to get to optimal resolution. So the question is, It's hard to imagine, but is B550 Phantom Gaming 4/ac designed *not* to work alongside another graphics card? Or is it because my 5000 is too old to be compatible? |
Replies:
Posted By: Xaltar
Date Posted: 10 Aug 2025 at 12:52am
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Getting an iGPU and dedicated GPU to work together can be tricky even with new hardware. It becomes increasingly more difficult when the GPU is old. The 5000 series is well beyond support these days. You could probably get is working under something like Linux pretty easily but you will have a hard time with modern windows. Not only is your HD 5000 old but it's also a mobility variant which is even harder to get drivers working for under windows 8 and newer. You might want to look at picking up a newer dedicated GPU that has multiple outputs and use that for both displays. Radeon RX 570/580s can be picked up very cheaply on the used market these days as well as others of similar performance/functionality. I wouldn't recommend anything much older as even the RX 580 is close to the end of it's driver support life. ------------- 
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Posted By: sungp77
Date Posted: 10 Aug 2025 at 12:55am
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Thanks for detailed explanation. It helped me understand where I stood. Cheers. |