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IBM Power System E850C: Technical Overview and Introduction
1.4 System features
The Power E850C system nodes contain two to four processor modules with 512 KB L2
cache and 8 MB L3 cache per core, and L4 cache with DDR4 memory.
1.4.1 Power E850C system features
The following features are available on the Power E850:
The Power E850C server supports 16 - 48 processor cores with two, three, or four
POWER8 processor modules:
– 8-core 4.22 GHz Processor Module (#EPW4).
– 10-core 3.95 GHz Processor Module (#EPW5).
– 12-core 3.65 GHz Processor Module (#EPW6).
128 GB to 4 TB high-performance DDR4 memory with L4 cache:
– 16 GB CDIMM Memory (#EM8P).
– 32 GB CDIMM Memory (#EM8Q).
– 64 GB CDIMM Memory (#EM8R).
– 128 GB CDIMM Memory (#EM8S).
Optional Active Memory Expansion (#4798).
Choice of three storage backplane features with different integrated SAS RAID controller
options. All backplane options have eight SFF-3 SAS bays, four 1.8-inch SSD bays, and
one DVD bay. All backplane options offer IBM Easy Tier® function for mixed HDD/SSD
arrays:
– Dual SAS Controller Backplane, without write cache (#EPVP).
– Dual SAS Controller Backplane, with write cache (#EPVN).
– Split Disk Backplane (two single SAS controllers), without write cache (#EPVQ).
Up to 11 hot-swap PCIe Gen3 slots in the system unit:
– Three x8 Gen3 full height, half length adapter slots.
– Four, six, or eight x16 Gen3 full-height, half-length adapter slots.
– With two processor modules, there are seven PCIe slots; with three modules, there are
nine PCIe slots; and with four modules, there are 11 PCIe slots in the system unit.
– One x8 PCIe slot is used for a LAN adapter.
The PCIe Gen3 I/O Expansion Drawer (#EMX0) expands the number of full-high,
hot-swap Gen3 slots:
– Up to two PCIe3 drawers with two processor modules (maximum 27 slots on the
server).
– Up to three PCIe3 drawers with three processor modules (maximum 39 slots on the
server).
– Up to four PCIe3 drawers with four processor modules (maximum 51 slots on the
server).
Up to 64 EXP24S SFF Gen2-bay Drawers (#5887) can be attached, providing up to
1536 SAS bays for disk or SSD.
Summary of Contents for E850C
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