Features and specificationsThe following information is a summary of the features and specifications of theserver. Depending on the model, some features might not be available, or somespecifications might not apply.Table 1. Features and specificationsMicroprocessor:v Supports up to two Intel Xeon ™ E5-2600series multi-core microprocessors (oneinstalled)v Level-3 cachev Two QuickPath Interconnect (QPI) linksspeed up to 8.0 GT per secondNote:v Use the Setup utility program todetermine the type and speed of themicroprocessors.v For a list of supported microprocessors,see http://www.ibm.com/servers/eserver/serverproven/compat/us/.Memory:v Minimum: 2 GBv Maximum: 768 GB– 64 GB using unbuffered DIMMs(UDIMMs)– 384 GB using registered DIMMs(RDIMMs)– 768 GB using load reduction DIMMs(LRDIMMs)v Type:– PC3-8500 (DDR3-1066), PC3-10600(DDR3-1333), or PC3-12800(DDR3-1600)– Single-rank, dual-rank, or quad-rank– Registered DIMM (RDIMM),unbuffered DIMM (UDIMM), or loadreduced DIMM (LRDIMM)v Slots: 24 dual inlinev Supports (depending on the model):– 4 GB unbuffered DIMM– 2 GB, 4 GB, 8 GB, and 16 GBregistered DIMMs– 32 GB load reduction DIMMSATA optical drives (optional for2.5-inch models):v DVD-ROMv Multi-burnerHot-swap fans:v One microprocessor: 4 dual-motorhot-swap fans.v Two microprocessors: 6 dual-motorhot-swap fans.Hard disk drive expansion bays(depending on the model):v 2.5-inch models: Up to eight 2.5-inchhot-swap SAS/SATA hard disk drivebays (with an optional optical drivebay)v 3.5-inch models: Up to three 3.5-inchhot-swap SAS/SATA or simple-swapSATA hard disk drive baysPCI expansion slots:Supports two PCI riser slots:v Slot 1 supports low-profile cards.– PCI Express 3.0 x16v Slot 2 supports half-length, full-heightcards.– PCI Express 3.0 x8– PCI Express 3.0 x16 (twomicroprocessors installed)– PCI-X 64-bit/133 MHzVideo controller (integrated intoIMM2):v Matrox G200eR2Note: The maximum video resolutionis 1600 x 1200 at 75 Hz.– SVGA compatible video controller– DDR3 528 MHz SDRAM videomemory controller– Avocent Digital Video Compression– 16 MB of video memory (notexpandable)Power supply:v Up to two hot-swap power supplies forredundancy support– 550-watt ac– 750-watt ac– 750-watt dcNote: Power supplies in the server mustbe with the same power rating orwattage.Environment: compliant with ASHRAEclass A3 specifications.Server on:v Temperature:– 5°C to 40°C (41°F to 104°F)– Altitude: 0 to 950 m (3,117 ft);decrease the maximum systemtemperature by 1°C for every 175-mincrease in altitude.v Maximum altitude: 3,050 m (10,000 ft),5°C to 28°C (41°F to 82°F)v Humidity:– Non-condensing: -12°C dew point(10.4°F)– Relative humidity: 8% to 85%v Maximum dew point: 24°C (75°F)v Maximum rate of temperature change:– Tape drives: 5°C/hr (41°F/hr)– Hard disk drives: 20°C/hr (68°F/hr)Server off:v Temperature: 5°C to 45°C (41°F to113°F)v Relative humidity: 8% to 85%v Maximum dew point: 27°C (80.6°F)Storage (non-operating):v Temperature: 1°C to 60°C (33.8°F to140.0°F)v Maximum altitude: 3,050 m (10,000 ft)v Relative humidity: 5% to 80%v Maximum dew point: 29°C (84.2°F)Shipment (non-operating):v Temperature: -40°C to 60°C (-40°F to140.0°F)v Maximum altitude: 10,700 m (35,105 ft)v Relative humidity: 5% to 100%v Maximum dew point: 29°C (84.2°F)Particulate contamination: airborneparticulates and reactive gases acting aloneor in combination with other environmentalfactors such as humidity or temperaturemight pose a risk to the server. Forinformation about the limits for particulatesand gases, see “Particulate contamination”on page 129.6 IBM System x3550 M4 Type 7914: Installation and User’s Guide