The Dell PowerEdge R740 supports up to 3TB of DDR4 memory across 24 DIMM slots (12 per CPU). This guide covers compatible memory types, maximum configurations, and upgrade best practices.
R740 Memory Specifications
| Spec | Value |
|---|---|
| Generation | 14th Gen (14G) |
| DIMM Slots | 24 (12 per CPU) |
| Max Capacity | 3TB DDR4 |
| Memory Type | DDR4 RDIMM, LRDIMM |
| Speeds | 2133, 2400, 2666MHz |
| Max per DIMM | 128GB (LRDIMM) |
Recommended Configurations
- Entry (64GB) — 4x 16GB RDIMM 2666MHz
- Standard (256GB) — 8x 32GB RDIMM 2666MHz
- High (768GB) — 24x 32GB RDIMM 2666MHz
- Maximum (3TB) — 24x 128GB LRDIMM 2666MHz
Browse all 369+ compatible R740 memory modules | Full R740 upgrade guide
Related: If you are sizing memory for a refurbished R740 purchase, review the Refurbished Server Buying Guide for grades A/B/C definitions, warranty tier comparison, and full 5-year TCO math.