IBM System x3650 M3 Upgrade Guide
Maximize the performance and lifespan of your System x3650 M3 (M3). Every upgrade option below is verified compatible.
Verified Specifications
| Processor Options | 2x Intel Xeon 5600 (to 6C/3.46 GHz; X5698 4.4 GHz 2C option) or 5500 via CTO; QPI 6.4 GT/s |
| Memory Configuration | 18x DDR3 ECC DIMM slots (9/CPU) to 1333 MHz; max 288 GB (16GB RDIMMs) |
| Drive Configurations | Up to 16x 2.5in hot-swap SAS/SATA HDD/SSD; max 25.6 TB (1.6TB SSDs); optical bay |
| Power Supply Options | Up to 2x redundant hot-swap: 460W / 675W / 675W HE; -48V DC option |
| RAID Controllers | ServeRAID BR10il v2, M1015, M5014/M5015 (to RAID 6/60 opt, M5015 max 2), B5015 SSD, H1110 |
| Networking Options | 2x integrated GbE (BCM5709) + 2x optional = up to 4x GbE |
| Specification Source | IBM official documentation (verified 2026-07-03) |
Upgrade Memory
Memory is the most impactful upgrade for virtualization and database workloads. Upgrading from 64GB to 128GB or 256GB can dramatically improve VM density and application response times.
00D4964 IBM 16GB RDIMM DDR3-1333 PC3-10600R ECC Memory
00D4980 IBM 8GB RDIMM DDR3L-1333 PC3L-10600R ECC Memory
00D4981 IBM 8GB RDIMM DDR3L-1333 PC3L-10600R ECC Memory
00D4984 IBM 8GB RDIMM DDR3L-1333 PC3L-10600R ECC Memory
00D4985 IBM 8GB RDIMM DDR3L-1333 PC3L-10600R ECC Memory
00D5010 IBM 32GB 4Rx4 RDIMM DDR3L-1333 PC3L-10600R ECC Memory
Upgrade Controllers
Upgrading your RAID controller enables faster disk I/O, larger cache, and support for newer drive technologies. Essential when adding NVMe or SAS-4 drives.
00N9543 IBM Serveraid 4M ULTRA160 SCSI Controller
01K7396 IBM 2494 7025 Netfinity Serveraid PCI 3 Channel Ultra RAID Adapter 4 T
02R0988 IBM Serverraid 6M 2CH PCI-X
06P5736 IBM Serveraid 4MX ULTRA160 SCSI Controller
13N2186 IBM Controller Serveraid 6M ULTRA320 SCSI
13N2198 IBM Controller Serveraid 6M ULTRA320 SCSI
Upgrade Processors
CPU upgrades deliver more cores and higher clock speeds. If your workload is CPU-bound (compilation, analytics, HPC), upgrading from 8-core to 16+ core processors provides significant throughput improvement.
00E2733 IBM Dual Processor System Backplane
00E3126 IBM Dual Processor System Backplane
00E3133 IBM Dual Processor System Backplane
00E7689 IBM Processor VRM for 8248 8408 9109
00FX414 IBM Processor VRM for 8248 8408 9109
00P1666 IBM 340MHZ 1 Way RS64 II Processor Card
More System x3650 M3 Resources
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