B450M-HDV and RX 560 not working together
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=11897
Printed Date: 28 Jul 2025 at 11:26pm Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B450M-HDV and RX 560 not working together
Posted By: MrKoffee
Subject: B450M-HDV and RX 560 not working together
Date Posted: 15 Jul 2019 at 11:00pm
I've build a computer using teh B450M-HDV as the MOBO, installed a RX 560 4GB that does not require additional power (no pin port on GPU) and the computer will not boot. Never gets to POST and I get 5 beeps on the internal speaker
I put in an old video card and the computer booted right up without problems.
The RX 560 works in another computer though.
Any suggestions to get the card working on this motherboard?
Thanks in advance.
Mr. Koffee.
|
Replies:
Posted By: MrKoffee
Date Posted: 15 Jul 2019 at 11:02pm
Forgot to mention that the computer uses 2 sticks of 8 GB ram (16 total) and a Thermaltake 650 Watt power supply.
|
Posted By: MrKoffee
Date Posted: 20 Jul 2019 at 9:51pm
Tracked the problem down to memory, but it makes no sense.
If I install two sticks of ram, along with the RX 560, the motherboard won't POST. However, it does POST with the (very) old video card. If I use a single stick of ram in any slot, with the RX 560, the computer will boot into OS
I tested each stick of ram in each of the slots and the computer would POST with the RX 560, if I put both sticks in with the RX 560 the computer will not even POST.
Running the machine now with the RX 560 and 1 stick of 8 GB ram.
Ram is the CMK32GX4M4A2666C16, which is on the approved list for memory
using the Ryzen 3 1200 and a M.2 250GB drive.
|
Posted By: Ray62
Date Posted: 20 Jul 2019 at 11:04pm
I hope you are on the Bios 1.50 or 1.40
Doesn't a CMOS Clear or loading defaults help? (Notice all your Bios settings before, maybe with F12 screenshots in the Bios to a USB stick or manually)
------------- Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
|
|