IBM System x3950 X6, Product Manual

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IBM System x3950 X6 7
Standard specifications
The following table lists the standard specifications.
Table 1. Standard specifications (Part 1)
Components Specification
Form factor 8U rack
Processor Up to eight Intel Xeon E7-8800 v2 processors, each in a Compute Book. Each processor has
either 15 cores (up to 2.8 GHz), 12 cores (up to 2.6 GHz), 10 cores (up to 2.2 GHz), eight cores
(up to 2.0 GHz), or six cores (up to 3.4 GHz). There are three QPI links up to 8.0 GTps each. Up
to 1600 MHz memory speed. Up to 37.5 MB L3 cache. Intel C602J chipset.
Memory Up to 192 DIMM sockets (24 DIMMs per processor, installed in the Compute Book). RDIMMs and
LRDIMMs (Load Reduced DIMMs) are supported, but memory types cannot be intermixed.
Memory speed up to 1600 MHz.
Memory
maximums
With RDIMMs: Up to 3 TB with 192x 16 GB RDIMMs and eight processors.
With LRDIMMs: Up to 12 TB with 192x 64 GB LRDIMMs and eight processors.
Memory
protection
ECC, Chipkill, RBS, memory mirroring, and memory rank sparing.
Memory-
channel
storage
Optional on all models. eXFlash DIMMs are installed in memory DIMM slots, but are seen by the
OS as storage devices. Memory channels with eXFlash DIMMs must also have at least one
RDIMM. Cannot be mixed with LRDIMMs. A maximum of 32 eXFlash DIMMs can be installed.
Maximum 12.8 TB with 32x 400GB eXFlash DIMMs.
Disk drive
bays
Up to thirty-two 1.8-inch eXFlash SSD bays, or up to 16x eight 2.5-inch hot-swap SAS/SATA
bays.
Maximum
internal
storage
Up to 25.6 TB with 1.6 TB 2.5-inch SAS SSDs, or up to 19.2 TB with 1.2 TB 2.5-inch SAS HDDs,
up to 16 TB with 1 TB 2.5-inch NL SAS/SATA HDDs, up to 12.8 TB with 400 GB 1.8-inch SATA
SSDs.
RAID support 12 Gb SAS/SATA RAID 0, 1, or 10 with ServeRAID M5210; optional upgrades to RAID 5 or 50 are
available (zero-cache; 1 GB non-backed cache; 1 GB or 2 GB flash-backed cache). Upgrades to
RAID 6 or 60 available for M5210 with 1 GB or 2 GB upgrades.
Optical and
tape bays
None.
Network
interfaces
Mezzanine LOM (ML2) slot for dual-port 10 GbE cards with SFP+ or RJ-45 connectors or
quad-port GbE cards with RJ-45 connectors. See Table 2. Dedicated 1 GbE port for systems
management.
PCI Expansion
slots
Up to 22 PCIe slots plus two dedicated Mezzanine LOM slots. The slots are as follows:
Four PCIe 3.0 x8 slots for internal RAID controllers (in two Storage Books)

Four PCIe 3.0 x16 slots (x16-wired), half length, full height (in two Primary I/O Books)

Two PCIe 3.0 x16 (x8-wired), half length, full height (in two Primary I/O Books)

Two ML2 slots for network adapter (PCIe 3.0 x8) (in two Primary I/O Books)

Four optional I/O Books, each with three slots, all full height (using two requires 6

processors; using all four requires 8 processors). Optional books are hot-swap capable.
Optional I/O Books can be either of the following options:
Half-length I/O Book: Two PCIe 3.0 x8 slots, one PCIe 3.0 x16 slot.

Full-length I/O Book: Two PCIe 3.0 x16, one PCIe 2.0 x4 slot; two aux power connectors:

150 W and 75 W. Supports one double-wide GPU up to 300 W.