POWER9 Hardware Compatibility List/Memory
Compatibility rules
The criteria for compatibility are essentially:
- must be DDR4;
- must be ECC;
- must be registered (RDIMM);
- must NOT be LRDIMM.
The supported module sizes are 8GB, 16GB, 32GB, 64GB and 128GB.
The supported memory speeds are 1600, 1866, 2133, 2400, 2666 MHz.
Ram will be running at a potentially slower frequency (2666, 2400, or 2133) based on if there is 1, 2 or 4 DIMMs per channel
| Platform | Slots | Max. Capacity |
|---|---|---|
| Talos II | Up to two sockets, each of 4 channels of 2 slots each | 2TiB |
| Blackbird | Two channels, one slot each | 256GiB |
Tested memory
Compatible memory
| Module | Validation | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Model | Size | Speed | Type | ECC | Stepping | Firmware | Source | Notes |
| Pacific Sun | X10723042S | 8GB | PC4-19200 | Registered | Yes | POWER9 DD2.1 | Hostboot cc2d45a | Official | |
| Hynix | HMA41GR7MFR4N-TF | 8GB | PC4-17000R | Registered | Yes | POWER9 DD2.2 | Hostboot 76f78f4 | ernsteiswuerfel | |
| Hynix | HMA82GR7AFR8N-UH | 16GB | PC4-19200 | Registered | Yes | POWER9 DD2.2 | Hostboot e36ec63 | Official | |
| Hynix | HMA82GR7CJR8N-VK | 16GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | JeremyRand | ||
| Samsung | M393A1G40DB0-CPB | 8GB | PC4-17000 | Registered | Yes | POWER9 DD2.2 | Hostboot 30dfd3b | meklort | Requires System Package v1.02 |
| Kingston | KTH-PL424/16G | 16GB | PC4-19200 | Registered | Yes | POWER9 DD2.1 | Hostboot cc2d45a | Official | |
| Micron | MTA18ASF2G72PZ-2G3B1 | 16GB | PC4-19200 | Registered | Yes | POWER9 DD2.2 | Hostboot 28927a7 | Official | |
| Micron | MTA18ASF2G72PDZ-2G3D1 | 16GB | PC4-19200 | Registered | Yes | POWER9 DD2.1 | Hostboot cc2d45a | Official | |
| Micron | MTA18ASF2G72PDZ-2G6D1 | 16GB | PC4-21333 | Registered | Yes | POWER9 DD2.2 | Hostboot 884b60b | smaeul | |
| Micron | MTA36ASF4G72PZ-2G6D1 | 32GB | PC4-21333 | Registered | Yes | POWER9 DD2.2 | Hostboot 6ffaeb4 | cyrozap | |
| Nemix Ram | 8GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | Hostboot 884b60b | suertreus | ||
| Samsung | M393A4K40BB1-CRC | 32GB | PC4-19200 | Registered | Yes | POWER9 DD2.1 | Hostboot 1e2221d | Official | |
| Samsung | M393A8K40B22-CWD | 64GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | Hostboot 884b60b | Official | tested 8 sticks/512GB@2666 total by Gyakovlev |
| Samsung | M393A2K40BB2-CTD | 16GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | Hostboot 0c8fa110 | meklort | Will run at 2400MT/s with System Package v1.00 |
| Samsung | M393A2K40CB2-CTD | 16GB | PC4-21300V-R | Registered | Yes | POWER9 DD2.2 | Hostboot 884b60b | MarcusC | |
| Samsung | M393A4K40BB2-CTD8Q | 32GB | PC4-21333 | Registered | Yes | POWER9 DD2.2 | Hostboot 28927a7 | luke-jr | |
| Samsung | M393A2G40EB2-CTD | 16GB | PC4-21300V-R | Registered | Yes | POWER9 DD2.2 | Hostboot 30dfd3b | JSharp | Tested extensively with System Package v1.02 but does boot on v1.00, Dual 8-Core POWER9, x8 DIMM Modules (RCS Recommended Slot Configuration) 128GiB total; also tested x4 DIMM Modules (RCS Recommended Slot Configuration) 64GiB total |
| Samsung | M393A4K40CB2-CTD6Q | 32GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | hostboot-884b60b | kev009 | 8 DIMMs working well |
| Samsung | M393A4K40CB2-CTD7Q | 32GB | PC4-21300R | Registered | Yes | POWER9 DD2.2 | hostboot-3beba24 | MPC7500 | 2*32GB in Blackbird |
| Samsung | M393A4K40CB2-CTD7Y | 32GB | PC4-21300R | Registered | Yes | POWER9 DD2.2 | hostboot-3beba24 | mx08 | 2*32GB in Blackbird |
| Kingston | KSM24RS8/8MAI | 8GB | PC4-19200R | Registered | Yes | POWER9 DD2.2 | Hostboot d286337 | ernsteiswuerfel | |
| Kingston | KVR24R17S8K4/32 | 8GB | PC4-19200 | Registered | Yes | POWER9 DD2.2 | 1.04, PNOR d286337d | sharkcz | kit 4x 8GB, got 1 stick faulty, but 3x 8GB worked OK |
| Kingston | KVR24R17D8/16MA | 16GB | PC4-19200 | Registered | Yes | POWER9 DD2.2 | 1.04, PNOR d286337d | sharkcz | |
| Crucial | CT32G4RFD4266 | 32GB | PC4-21300 | Registered | Yes | drp | Tested in Blackbird with 2x32GB | ||
| Crucial | CT16G4RFD4266.36FE1 | 16GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | 1.06 | aperezbios | tested with 2x16GB |
| Crucial | CT4G4RFS8266 | 4GB | PC4-21300 | Registered | Yes | POWER9 DD2.2 | Robbieab | Purchased as the CT2K4G4RFS8266 8GB kit. Confirmed functional from the petitboot shell. | |
| Crucial | CT8G4RFS8266 | 8GB | PC4-21300 | Registered | Yes | CT2K8G4RFS8266 16GB kit (8GBx2). DDR4 PC4-21300 • CL=19 • Single Ranked • x8 based • Registered • ECC • DDR4-2666 • 1.2V • 1024Meg x 72. Confirmed with a working Debian GNU and Devuan GNU+Linux installation. | |||
| Ventura (Samsung) | D4-62JA402SV-15 | 16GB | PC4-17000 | Registered | Yes | POWER9 DD2.2 | mosst | ||
| Kingston | KSM26RD8/16HAI | 16GB | PC4-2666 | Registered | Yes | xkucf03 | tested 2×16 GB in Blackbird | ||
| Samsung | M393A1G43EB1-CTD | 8GB | PC4-2666 | Registered | Yes | POWER9 DD2.2 | Red Hat | ||
| Samsung | M393A4K40CB2-CTD | 32GB | PC4-2666 | Registered | Yes | POWER9 DD2.2 | Red Hat | ||
Incompatible memory
NOTE: Memory may be removed from this table after firmware support has been added, or there may be a fundamental hardware incompatibility. If you have incompatible memory listed in the table below, you may want to bookmark and check this page from time to time to see if a firmware update has resolved the issue.
| Module | Test Conditions | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Model | Size | Speed | Type | ECC | Stepping | Firmware | Last Test | |
| Samsung | M386A8K40BMB-CRC | 64GB | PC4-19200 | Registered LRDIMM | Yes | POWER9 DD2.1 | Hostboot 1e2221d | 02/14/2018 | |
| Samsung | KSM26RS8/8HAI | 8GB | PC4-26600 | Registered DIMM | Yes | 07/15/2019 | |||
