Patriot Publishes List of AMD Ryzen Compatible DIMMs: Up to DDR4-3400, 64 GB
Patriot has published a list of its memory modules that are verified and compatible with AMD Ryzen processors. This includes the Viper 4 and Viper Elite modules that are already on the market, and the announcement was made after the company ran extensive tests of its DDR4 DIMMs on different platforms supporting AMD's latest CPUs.
As previously reported, with AMD's release of its Zen based CPUs a few months ago, there were some growing pains in the new platform, particularly with RAM speed and compatibility. As it turned out, not all high-end DDR4 memory modules (at the time) would work with AMD Ryzen processors at their labeled data transfer rates. As a result, a number of DDR4 DIMM suppliers have released modules specifically qualified for enthusiast-grade AMD Ryzen-based systems and factory tested for compatibility. Moreover, AMD is working with motherboard makers to improve compatibility of its Ryzen platforms with memory modules via BIOS updates, recently promoting its AGESA 1.0.0.6 update. In the meantime, end users are advised to get DDR4 DIMMs that are labeled for AM4 to ensure compatibility - these modules should be factory-tested to be compatible with the AMD Ryzen.
Patriot has tested dozens of its single unit DIMMs, and as dual-/quad channel kits, with multiple motherboards from ASUS, ASRock, GIGABYTE and MSI based on AMD's X370, B350 and B320 chipsets (see the details in the table below) for compatibility with AMD Ryzen 7 and Ryzen 5 CPUs. Among the tested modules are Patriot's Viper 4 and Viper Elite DIMMs with 4 GB, 8 GB and 16 GB capacities rated to operate at 2133-3400 MT/s with CL15 and CL16 timings. The company published its list of AMD Ryzen-compatible DDR4 DIMMs and we republish it below.
| AMD Ryzen and Patriot DDR4 DIMMs Compatibility | Modules | |||
| Product Family | Specs | Model Numbers | Type |
| Viper 4 | 16GB 3400 MT/s CL16 8GB 3400 MT/s CL16 8GB 3200 MT/s CL16 8GB 3000 MT/s CL16 16GB 2800 MT/s CL16 16GB 2666 MT/s CL15 32GB 2400 MT/s CL15 16GB 2400 MT/s CL15 8GB 2400 MT/s CL15 8GB 2400 MT/s CL15 4GB 2400 MT/s CL15 32GB 3200 MT/s CL16 16GB 3200 MT/s CL16 32GB 3000 MT/s CL16 16GB 3000 MT/s CL16 32GB 2800 MT/s CL16 8GB 2800 MT/s CL16 32GB 2666 MT/s CL15 8GB 2666 MT/s CL15 32GB 3000 MT/s CL16 16GB 3000 MT/s CL16 | PV416G340C6K PV48G340C6K PV48G320C6K PV48G300C6K PV416G280C6K PV416G266C5K PV432G240C5K PV416G240C5K PV48G240C5K PV48G240C5 PV44G240C5 PV432G320C6K PV416G320C6K PV432G300C6K PV416G300C6K PV432G280C6K PV48G280C6K PV432G266C5K PV48G266C5K PV432G300C6QK PV416G300C6QK | dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel single-channel single-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel quad-channel quad-channel |
| Viper Elite | 16GB 3000 MT/s CL16 16GB 2800 MT/s CL16 32G 2666 MT/s CL16 16GB 2400 MT/s CL15 8GB 2400 MT/s CL15 32GB 2133 MT/s CL14 16GB 2133 MT/s CL14 8GB 2133 MT/s CL14 16GB 3000 MT/s CL15 16GB 3200 MT/s C16 8GB 3200 MT/s C16 32GB 2800 MT/s CL16 32GB 2400 MT/s CL15 8GB 2133 MT/s CL14 4GB 2133 MT/s CL14 16GB 2400 MT/s CL16 8GB 2400 MT/s CL16 4GB 2400 MT/s CL16 16GB 3200 MT/s CL16 8GB 3200 MT/s CL16 16GB 3000 MT/s CL16 8GB 3000 MT/s CL16 32GB 2800 MT/s CL16 16GB 2800 MT/s CL16 8GB 2800 MT/s CL16 32GB 2400 MT/s CL15 32GB 2133 MT/s CL14 64GB 3000 MT/s C16 64GB 2800 MT/s CL16 64GB 3000 MT/s C16 8GB 3000 MT/s CL16 8GB 2800 MT/s CL16 16G 2666 MT/s CL16 8GB 2666 MT/s CL16 16GB 2400 MT/s CL15 8GB 2400 MT/s CL15 | PVE416G300C6KBL PVE416G280C6KBL PVE432G266C6KBL PVE416G240C5KRD PVE48G240C5KRD PVE432G213C4KGY PVE416G213C4KGY PVE48G213C4KGY PVE416G300C5KGY PVE416G320C6KGY PVE48G320C6KGY PVE432G280C6KGY PVE432G240C5KGY PVE48G213C4GY PVE44G213C4GY PVE416G240C6GY PVE48G240C6GY PVE44G240C6GY PVE416G320C6KRD PVE48G320C6KRD PVE416G300C6KRD PVE48G300C6KRD PVE432G280C6KRD PVE416G280C6KRD PVE48G280C6KRD PVE432G240C5KRD PVE432G213C4KRD PVE464G300C6QKR PVE464G280C6QKR PVE464G300C6QKG PVE48G300C6KBL PVE48G280C6KBL PVE416G266C6KBL PVE48G266C6KBL PVE416G240C5KBL PVE48G240C5KBL | dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel single-channel single-channel single-channel single-channel single-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel quad-channel quad-channel quad-channel dual-channel dual-channel dual-channel dual-channel dual-channel dual-channel |
All of these modules are already on the market in single-, dual-, and quad-channel configurations using capacities from 8 GB to 64 GB. With this list, it should be easy to find out about compatibility of Patriot's Viper 4 and Viper Elite with AMD's latest chips by checking out their model numbers.
| AMD Ryzen and Patriot DDR4 DIMMs Compatibility | Motherboards | ||||
| Chipset | ASUS | ASRock | GIGABYTE | MSI |
| X370 | Crosshair VI Hero | X370 Tachi | AX370 Gaming K5 | X370 XPOWER GAMING TITANIUM |
| X370 Killer SLI | AX370 Gaming K7 | X370 SLI PLUS | ||
| B350 | PRIME B350-PLUS | AB350M Pro4 | - | - |
| AB350 Gaming K4 | ||||
| AB350M-HDV | ||||
| A320 | - | A320M Pro4 | A320M GAMING PRO | |
| A320M-HDV |