IBM Power E850 Servers

Businesses today are demanding faster insights that analyze more data in new ways. They need to implement applications in days versus months, and they need to achieve all these goals while reducing IT costs. This is creating new demands on IT infrastructures, requiring new levels of performance and the flexibility to respond to new business opportunities, all at an affordable price.

The IBM(R) Power(R) System E850 server offers a unique blend of enterprise-class capabilities in a space-efficient, 4-socket system with excellent price performance. With up to 48 IBM POWER8(TM) processor cores, advanced IBM PowerVM(R) virtualization that can yield over 70 percent system utilization and Capacity on Demand (CoD), no other 4-socket system in the industry delivers this combination of performance, efficiency and business agility. These capabilities make the Power E850 server an ideal platform for medium-size businesses and as a departmental server or data center building block for large enterprises.

The Power E850 server delivers exceptional throughput, using POWER8 processors up to 3.7 GHz that support simultaneous multi-threading of up to eight threads per core (SMT8). Each Dual Chip Module has on-chip memory controllers and may utilize up to128 GB off-chip eDRAM L4 cache to deliver 192 GB/sec of memory bandwidth per socket. I/O bandwidth is also dramatically increased by way of PCIe Gen3 I/O controllers, directly integrated into the processors to further reduce latency. The Power E850 server offers over 70 percent more system performance than an IBM POWER7+™ Power 750 server, enabling increased throughput and data center efficiency.


  • Designed for data and analytics, delivers secure, reliable performance in a compact, 4-socket system
  • Can flexibly scale to rapidly respond to changing business needs
  • Can reduce IT costs through application consolidation, higher availability and virtualization to yield over 70 percent utilization


System Configurations Model 8408-E8E
Processor and Memory
Processor cores 48 at 3.02 GHz POWER8
40 at 3.35 GHz POWER8
32 at 3.72 GHz POWER8
Sockets 2 – 4
Level 2 (L2) cache per core 512 KB
Level 3 (L3) cache per core 8 MB eDRAM shared L3
Level 4 (L4) cache Up to 128 MB eDRAM L4 (off-chip) per socket
Enterprise Memory Up to 32 CDIMMs
128 GB to 4 TB
Processor-to-Memory bandwidth 192 GBps per socket
Storage and IO
Integrated PCIe adapter slots Up to 11 hot-swap PCIe Gen3 slots
x16: 4 – 8 (2 per socket)
x8: 3 (one defaults to 2 x 10 Gb LAN)
Integrated SAS Controllers Two in storage backplane, supporting standard RAID 0,5,6,10, 5T2, 6T2 and 10T2

Integrated SAS bays for solid-state drives (SSD) or hard-disk drives 8 hot-swap SFF SAS drive bays (2.5”) + 4 SSD bays (1.8”)
Expansion features (optional – operating system dependencies)
DVD bay One
Max PCIe Gen3 I/O Drawers (12 PCIe Gen3 slots each) 4
Max DASD/SSD I/O Drawers (24 SFF bays each) 64 EXP24S I/O drawers
Standard features
Flexible Service Processor 1
IBM POWER Hypervisor™ LPAR, Dynamic LPAR; Virtual LAN (Memory to memory inter-partition communication)
PowerVM Standard Edition (optional) 20 Micro-Partitions per processor; Multiple Shared Processor Pools; Shared Dedicated Capacity; Virtual I/O Server
PowerVM Enterprise Edition (optional) 20 Micro-Partitions per processor; Multiple Shared Processor Pools; Virtual I/O Server; Shared Dedicated Capacity; Live Partition Mobility (LPM) and Active Memory Sharing* (AMS)
RAS features Processor Instruction Retry
Alternate Processor Recovery
Selective dynamic firmware updates
Chipkill memory
Memory DRAM sparing
Dynamic L3 cache column repair
Dynamic Processor de-allocation
Phase redundant, integrated sparing voltage regulator modules for processors, memory and I/O
Second generation service processor
Hot swappable Time-of-Day battery
Redundant, hot swappable power supplies
Redundant fans for SAS controllers and drive bays
Redundant, hot swappable fans for processor, memory and PCIe slots
Hot-swappable SAS bays
Hot-swappable PCIe slots
Dynamic de-allocation of logical partitions and PCIe bus slots
Extended error handling on PCIe slots
Active Memory Mirroring for Hypervisor (optional)
Capacity on Demand features (optional) Processor and/or Memory Capacity Upgrade on Demand (CUoD)
Elastic Processor and/or Memory Capacity on Demand (CoD)
Trial Processor and/or Memory CoD
Utility CoD
Operating systems AIX and Linux for Power
High availability Power HA Editions
Power requirements Operating voltage: 200 to 240 V AC
System dimensions Four EIA (4U) space in a 19-inch rack
Width: 449 mm (17.6 in.)
Depth: 776 mm (30.6 in.)
Height: 175 mm (6.9 in.)

Since 1982, Spectra is your global source for used, new and refurbished IBM, specializing in IBM POWER servers.

All Spectra IBM servers and storage are put through a rigorous refurbishment / reconditioning and testing process and guaranteed:

  • Original equipment manufactured and serial numbered by IBM
  • Configured to exact User specifications
  • Fully refurbished / reconditioned to manufacturers standards of new [ETN]
  • Lab tested, 72 Hour burn in/Load Tested
  • Complete with manufacturers ship group (I/F Cables, Power Cords, Manuals etc)
  • Eligible for IBM Maintenance Agreement
  • Provided with 90 Day warranty

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If you can’t find the IBM equipment you need, please call us at (714) 970-7000 to determine current availability. For quickest response, please complete the buy/sell form on the right.