Just like when Intel first switched to DDR4, AMD users encountered issues getting some of their DDR4 kits to run on the new Ryzen AM4 platform. For their part, Patriot Memory wants buyers to know ahead of time which of their products have been tested and are in the Qualified-vendor list. These are kits that Patriot Memory themselves ran tests on to ensure compatibility.
DDR4 Compatibility Requirements
As always, if encountering problems getting DDR4 memory to run at the rated speeds purchased, try running them at the JEDEC floor of 2133 or 2400 MHz first. After which, update the BIOS to the latest version. Even better if it is the one with the AGESA 184.108.40.206 microcode. Not all boards have implemented that update yet, but on those that did, improved DDR4 compatibility. It also allows users to set the DDR4 memory divider up to 4000 MHz even without touching the BCLK. Before the AGESA 220.127.116.11 update, Ryzen users face a 3200MHz.
Patriot Memory Compatible Modules
Users can read the full list by downloading this PDF file. This is the most recent compatibility list that should be compatible with any AGESA 18.104.22.168 updated BIOS. This includes modules from Patriot Memory Viper 4, Viper Elite and Signature Line. Patriot Memory engineers ran these kits on the following motherboards:
- GA-AX370 Gaming K5
- GA-AX370 Gaming K7
- X370 XPOWER GAMING TITANIUM
- X370 SLI PLUS and A320M GAMING PRO
- ROG Crosshair VI Hero
- PRIME B350-PLUS
- X370 Tachi
- Fatali1ty AB350 Gaming K4
- X370 Killer SLI
- AB350M Pro4
- A320M Pro4