LRDIMM 1866MHz — Cross-Brand Comparison

About LRDIMM 1866MHz

Server memory modules use industry-standard JEDEC specifications, but OEM-validated DIMMs include vendor firmware and SPD profiles that the BMC checks at POST. The LRDIMM 1866MHz is a DIMM specification rather than a single SKU — multiple OEMs ship physically identical modules under different part numbers, all functionally equivalent on JEDEC-compliant servers.

Cross-referencing guidance

When cross-referencing memory: (1) match DDR generation (DDR3/DDR4/DDR5), (2) match speed in MHz (under-spec degrades to slower bus, over-spec downclocks to platform max), (3) match rank and capacity (some servers require all DIMMs to match rank for full performance), (4) confirm DIMM type matches socket (RDIMM vs LRDIMM vs UDIMM are not interchangeable). ICD validates every cross-reference against the target server SPD compatibility report.

Brands ICD cross-references for this component

ICD maintains inventory and engineering expertise across all major server OEMs. Even when our public catalog has limited entries for the LRDIMM 1866MHz, our team can source verified-compatible equivalents from these brands:

• Dell EMC — PowerEdge, PowerVault, PowerStore, PowerScale, Unity platforms
• HPE — ProLiant, Synergy, Apollo, MSA, Nimble, Aruba
• Lenovo — ThinkSystem SR/HR, ThinkAgile, Storage DS-series
• Cisco — UCS B/C/S-series, Nexus, MDS
• IBM — System x (legacy), Power systems, FlashSystem
• Supermicro — TwinPro, BigTwin, FatTwin, SuperBlade platforms
• NetApp — FAS, AFF, E-Series controllers and shelves

ICD cross-reference workflow

Submit any server part number and the target chassis it should fit. ICD engineering validates: (a) OEM cross-reference matrix, (b) physical and electrical compatibility, (c) firmware revision requirements, (d) warranty and support implications of mixing brands. Quote returns within 4 business hours with verified-compatible equivalents and pricing across multiple OEM tiers (OEM-genuine, OEM-refurbished, certified-equivalent).