The following tables group the known compatible Dell PowerEdge R740 and R740xd memory modules by RAM capacity. Each section uses the same sortable table format and includes the model number, manufacturer, capacity, memory type, speed, ECC configuration, and rank.
4GB RAM
| Model Number ⇅ | Brand ⇅ | Capacity ⇅ | Memory Type ⇅ | Speed ⇅ | ECC ⇅ | Rank ⇅ |
|---|---|---|---|---|---|---|
| M393A5143DB0-CPB | Samsung | 4GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx8 |
| 9ASF51272PZ-2G3B1 | Micron | 4GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx8 |
| HMA451R7MFR8N-TF | SK hynix | 4GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx8 |
| HMA451R7AFR8N-UH | SK hynix | 4GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx8 |
| 9ASF51272PZ-2G1A2 | Micron | 4GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx8 |
8GB RAM
| Model Number ⇅ | Brand ⇅ | Capacity ⇅ | Memory Type ⇅ | Speed ⇅ | ECC ⇅ | Rank ⇅ |
|---|---|---|---|---|---|---|
| HMA41GR7MFR8N-TF | SK hynix | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx8 |
| HMA41GR7AFR4N-TF | SK hynix | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx4 |
| 9ASF1G72PZ-2G3B1 | Micron | 8GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx4 |
| HMA41GR7AFR8N-TF | SK hynix | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx8 |
| M393A1G43DB0-CPB | Samsung | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 2Rx8 |
| HMA81GR7AFR8N-VK | SK hynix | 8GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 1Rx8 |
| HMA41GR7MFR4N-TF | SK hynix | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx4 |
| M393A1G40DB1-CRC | Samsung | 8GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx4 |
| 18ASF1G72PZ-2G1A2 | Micron | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx4 |
| M393A1G40DB0-CPB | Samsung | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx4 |
| HMA81GR7CJR8N-VK | SK hynix | 8GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 1Rx8 |
| 18ASF1G72PZ-2G1B1 | Micron | 8GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 1Rx4 |
| M393A1K43BB0-CRC | Samsung | 8GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx8 |
| 9ASF1G72PZ-2G6D1 | Micron | 8GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 1Rx4 |
16GB RAM
| Model Number ⇅ | Brand ⇅ | Capacity ⇅ | Memory Type ⇅ | Speed ⇅ | ECC ⇅ | Rank ⇅ |
|---|---|---|---|---|---|---|
| HMA82GR7CJR8N-VK | SK hynix | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7DJR8N-XN | SK hynix | 16GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7AFR8N-VK | SK hynix | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7CJR8N-WM | SK hynix | 16GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx8 |
| M393A2K43CB2-CVF | Samsung | 16GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7AFR4N-UH | SK hynix | 16GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx4 |
| 18ASF2G72PDZ-2G6J1 | Micron | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
| 18ASF2G72PDZ-2G6D1 | Micron | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
| HMA42GR7BJR4N-UH | SK hynix | 16GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7JJR8N-WM | SK hynix | 16GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx8 |
| 18ASF2G72PDZ-3G2R1 | Micron | 16GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx8 |
| 18ASF2G72PDZ-3G2J3 | Micron | 16GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx8 |
| M393A2K43BB1-CTD | Samsung | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
| M393A2K40CB2-CTD | Samsung | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 1Rx4 |
| HMA82GR7AFR8N-UH | SK hynix | 16GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx8 |
| 18ASF2G72PDZ-2G3B1 | Micron | 16GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx8 |
| 18ASF2G72PZ-2G3B1 | Micron | 16GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 1Rx4 |
| 18ASF2G72PDZ-2G9E1 | Micron | 16GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7AFR4N-VK | SK hynix | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 1Rx4 |
| 18ASF2G72PZ-2G6D1 | Micron | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 1Rx4 |
| M393A2K43BB1-CRC | Samsung | 16GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx8 |
| 18ASF2G72PDZ-2G6E1 | Micron | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
| HMA82GR7DJR8N-VK | SK hynix | 16GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx8 |
32GB RAM
| Model Number ⇅ | Brand ⇅ | Capacity ⇅ | Memory Type ⇅ | Speed ⇅ | ECC ⇅ | Rank ⇅ |
|---|---|---|---|---|---|---|
| HMA84GR7AFR4N-UH | SK hynix | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G3D1 | Micron | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| M393A4K40DB3-CWE | Samsung | 32GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7AFR4N-VK | SK hynix | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7DJR4N-XN | SK hynix | 32GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7CJR4N-WM | SK hynix | 32GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| M393A4K40BB2-CTD | Samsung | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G6D1 | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7JJR4N-WM | SK hynix | 32GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| AM32D426R19D4MEX | Kingston | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| M393A4K40DB2-CTD | Samsung | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HP26D4R9D4HAI-32 | Kingston | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7DJR4N-VK | SK hynix | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7CJR4N-VK | SK hynix | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 9965640-041.C00G | Kingston | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| M393A4K40CB2-CVF | Samsung | 32GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7DJR4N-WM | SK hynix | 32GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7JJR4N-VK | SK hynix | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G9E2 | Micron | 32GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G6E1 | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G9J3 | Micron | 32GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| M393A4K40CB2-CTD | Samsung | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G3B1 | Micron | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| M393A4K40BB1-CRC | Samsung | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| KCPC7G-MIA | Kingston | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| M386A4G40EM2-CRC | Samsung | 32GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| HMA84GL7MFR4N-UH | SK hynix | 32GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 2Rx4 |
| 36ASF4G72LZ-2G3B1 | Micron | 32GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 2Rx4 |
| 9965640-013.C00G | Kingston | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G6D1-R | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-3G2E7 | Micron | 32GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| M393A4K40BB0-CPB | Samsung | 32GB | DDR4 RDIMM | 2133 MT/s | ECC Registered | 2Rx4 |
| M386A4G40DM0-CRC | Samsung | 32GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| 36ASF4G72PZ-2G6E1-R | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMAA4GR7AJR8N-XN | SK hynix | 32GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx8 |
| 36ASF4G72PZ-2G6E1C | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| KTN78Y-MIE | Kingston | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G6H1 | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7CJR4N-XN | SK hynix | 32GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G3D1 | Micron | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G6H1R | Micron | 32GB | DDR4 RDIMM | 2666 MT/s | ECC Registered | 2Rx4 |
| HMA84GR7MFR4N-UH | SK hynix | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| M392A4K40BM0-CRC | Samsung | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| 36ASF4G72PZ-2G3A1 | Micron | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| HP24D4R7D4MAI-32 | Kingston | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| 9965640-006.A01G | Kingston | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
| 9965640-008.A01G | Kingston | 32GB | DDR4 RDIMM | 2400 MT/s | ECC Registered | 2Rx4 |
64GB RAM
| Model Number ⇅ | Brand ⇅ | Capacity ⇅ | Memory Type ⇅ | Speed ⇅ | ECC ⇅ | Rank ⇅ |
|---|---|---|---|---|---|---|
| 36ASF8G72PZ-3G2E1 | Micron | 64GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| M393A8G40MB2-CVF | Samsung | 64GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| HMAA8GL7CPR4N-VK | SK hynix | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| HMAA8GL7CPR4N-WM | SK hynix | 64GB | DDR4 LRDIMM | 2933 MT/s | ECC LRDIMM | 4Rx4 |
| HMAA8GL7AMR4N-VK | SK hynix | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| 72ASS8G72LZ-2G6D2 | Micron | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| HMAA8GL7AMR4N-UH | SK hynix | 64GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| 72ASS8G72LZ-2G3B2 | Micron | 64GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| M386A8K40CM2-CVF | Samsung | 64GB | DDR4 LRDIMM | 2933 MT/s | ECC LRDIMM | 4Rx4 |
| 72ASS8G72LZ-2G3A1 | Micron | 64GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| M386A8K40DM2-CVF | Samsung | 64GB | DDR4 LRDIMM | 2933 MT/s | ECC LRDIMM | 4Rx4 |
| 36ASF8G72PZ-2G9B1 | Micron | 64GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| HMAA8GR7AJR4N-XN | SK hynix | 64GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| HMAA8GR7CJR4N-XN | SK hynix | 64GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| 72ASS8G72PSZ-2S6G1 | Micron | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| HMAA8GL7AMR4N-VK | SK hynix | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| HMAA8GL7CPR4N-VK | SK hynix | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| 36ASF8G72LZ-2G9B1 | Micron | 64GB | DDR4 LRDIMM | 2933 MT/s | ECC LRDIMM | 4Rx4 |
| M386A8K40BM2-CTD | Samsung | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| 36ASF8G72PZ-3G2B2 | Micron | 64GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
| HMAA8GL7MMR4N-UH | SK hynix | 64GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| 72ASS8G72LZ-3G2R2 | Micron | 64GB | DDR4 LRDIMM | 3200 MT/s | ECC LRDIMM | 4Rx4 |
| 36ASF8G72LZ-3G2F1 | Micron | 64GB | DDR4 LRDIMM | 3200 MT/s | ECC LRDIMM | 4Rx4 |
| M386A8K40CM2-CTD | Samsung | 64GB | DDR4 LRDIMM | 2666 MT/s | ECC LRDIMM | 4Rx4 |
| HMAA8GR7AJR4N-WM | SK hynix | 64GB | DDR4 RDIMM | 2933 MT/s | ECC Registered | 2Rx4 |
| M386A8K40BM2-CVF | Samsung | 64GB | DDR4 LRDIMM | 2933 MT/s | ECC LRDIMM | 4Rx4 |
| M386A8K40BMB-CRC | Samsung | 64GB | DDR4 LRDIMM | 2400 MT/s | ECC LRDIMM | 4Rx4 |
| M393A8G40AB2-CWE | Samsung | 64GB | DDR4 RDIMM | 3200 MT/s | ECC Registered | 2Rx4 |
Capacity Not Identified
| Model Number ⇅ | Brand ⇅ | Capacity ⇅ | Memory Type ⇅ | Speed ⇅ | ECC ⇅ | Rank ⇅ |
|---|---|---|---|---|---|---|
| 144ASQ16G72LSZ-2S6E1 | Unknown/OEM | — | DDR4 | — | — | — |
| ST5724G4APL26P2-SC | Unknown/OEM | — | DDR4 | — | — | — |
| 9965698-040.A00G | Kingston/OEM | — | DDR4 | — | — | — |
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