Lenovo System x3850 X6 Installation And Service Manual page 20

• Microprocessor (depending on the model):
– The server supports up to four (4-socket server) or eight (8-socket server) Intel Xeon™ EX versions of
the E7-48xx v2, E7-88xx v2, E7-48xx v3, E7-88xx v3, E7-48xx v4, and E7-88xx v4 Series
microprocessors.
– Up to fifteen-core Turbo 2.0 with up to 37.5 MB cache shared among cores
– Up to 37.5 MB Level-3 cache
– Two QuickPath Interconnect (QPI) links with the following:
– Operating speeds of up to 8 gigatransfers (GT) per second
Note: Link speed can range from 6.4 GT/s, 7.2 GT/s, or 8 GT/s
– Three QPI links per microprocessor (depending on the microprocessor)
– Two 20-lane point-to-point data links (one in each direction) per QPI link
– Four Scalable Memory Interconnect 2 (SMI2) links per microprocessor at up to 6.4 GT/s
– Each microprocessor has four memory channels, each memory channel has two DDR channels, and
each DDR channel supports three DIMMs
– Intel EX microprocessor + C600 series chipset (PCH)
– HyperThreading Technology
– Up to 32 PCIe Gen3 lanes per processor
Note: Use the Setup utility to determine the type and speed of the microprocessors in the server.
• Memory (depending on the model):
– DIMM connectors: 96 for the 4-socket and 192 for the 8-socket
– 24 DIMM connectors per compute book
– DDR3 compute book:
– Type: PC3-12800R 1600 MHz, PC3L-12800 1600 MHz or PC3L-10600 1333 MHz Load Reduced
(LR) single-rank, double-rank, or quad-rank, ECC, 240 pin, DDR3 registered SDRAM DIMMs only
– Supports standard 4 GB, 8 GB, 16 GB RDIMMs, and 16 GB, 32 GB, and 64 GB LR-DIMMs
– Supports l.35-volt registered DIMMs (see "Installing a memory module" on page 46 for more
information)
– DDR4 compute book:
– Type: PC4-17000, registered, ECC, 288 pins at 2400 MHz Capable of running at 1333 MHz, 1600
MHz, or 1866 MHz
– Supports:
• 4 GB, 8GB, 16 GB RDIMMs
• 16 GB, 32 GB, and 64 GB LR-DIMMs
• 128 GB 3DS RDIMMs
– Supports 1.2-volt registered DIMMs (see "Installing a memory module" on page 46 for more
information)
– Single rank x4, dual rank x4, quad rank x4, single rank x8, dual rank x8, quad rank x8 RDIMM
configurations
– The server also supports 200 GB and 400 GB eXFlash™ DIMMs that you can install in unused DIMM
slots to increase high performance storage capabilities.
• Drive expansion bays (depending on the model):
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System x3850 X6 and x3950 X6 Installation and Service Guide