IBM x3550 M4 – 7914I5V 1U Rackmount Server

1x Intel® Xeon® Processor E5-2609 
(10M Cache, 2.40 GHz, 6.40 GT/s Intel® QPI)
E5-2600 v2: Up to two Intel Xeon processor E5-2600 v2 product family CPUs with 12 cores (up to 2.7 GHz) or ten cores (up to 3.0 GHz) or eight cores (up to 3.3 GHz) or six cores (up to 3.5 GHz) or four cores (up to 3.5 GHz). Two QPI links up to 8.0 GT/s each. Up to 1866 MHz memory speed. Up to 30 MB L3 cache.
E5-2600: Up to two Intel Xeon processor E5-2600 product family CPUs with eight cores (up to 2.9 GHz) or six cores (up to 2.9 GHz) or quad-cores (up to 3.3 GHz). Two QPI links up to 8.0 GT/s each. Up to 1600 MHz memory speed. Up to 20 MB L3 cache.

1x 4GB 1333MHz (PC1066) ECC Registered
Up to 24 DIMM sockets (12 DIMMs per processor).
E5-2600 v2: RDIMMs and LRDIMMs (Load Reduced DIMMs) are supported but memory types cannot be intermixed. Memory speed up to 1866 MHz.
E5-2600: RDIMMs, UDIMMs and LR-DIMMs (Load Reduced DIMMs) are supported but memory types cannot be intermixed. Memory DIMM speeds up to 1600 MHz.

no HDD 
Up to eight 2.5″ hot-swap SAS/SATA HDDs, or up to three 3.5″ hot-swap SAS/SATA HDDs, or up to three 3.5″ Simple Swap SATA HDDs.

1x ServeRAID M5110 SAS/SATA Controlle(RAID 0, 1, 1E, and 10)
6 Gb SAS/SATA: RAID 0, 1, 10 with H1110, M1115 or M5110. Optional upgrades to RAID 5, 50 available for M1115. Optional upgrades to RAID 5, 50 are available for M5110 (zero-cache; 512 MB battery-backed cache; 512 MB or 1 GB flash-backed cache). Optional upgrade to RAID 6, 60 are available for M5110 with 512 MB or 1 GB cache upgrades.
12 Gb SAS/SATA: RAID 0, 1, 10 with optional M5210. Optional upgrades to RAID 5, 50 are available for M5210 (zero-cache; 1 GB non-backed cache; 1 GB or 2 GB flash-backed cache). Optional upgrade to RAID 6, 60 are available for M5210 with 1 GB or 2 GB cache upgrades.

One, optional, for models with 2.5″ drives. Support for DVD-ROM or Multiburner.

Two slots, depending on the riser cards installed. The slots are as follows (all PCIe slots are PCIe 3.0, all PCI-X slots are 64 bit/133 MHz):

• Slot 1: PCIe x16; low profile, half-length
• Slot 2: PCIe x8, opt. PCI-X or PCIe x16; full-height/half-length (PCIe x16 req. 2nd CPU)

Additional dedicated slot for ServeRAID adapter.

1x 4xGbE

1 x 550W 80 PLUS® certified PSU

Up to two redundant hot-swap 550 W AC or 750 W AC power supplies (80+ Platinum certification), or 750 W DC power supply options.