Table 2. Features and specifications (continued)Scalability and memory expansion:v Eight-socket scalability option uses4 QPI external cablesv Multi-node configurations require 4microprocessors in each nodev MAX5 memory expansion moduleoption uses four QPI portsNote: When you add an optionalmemory expansion module to yourserver configuration and you planto use the optional USB flashdevice with VMware EXSiembedded hypervisor software, seethe documentation that comes withthe USB flash device and theoperation system installationinstructions for installing VMwareESXi (or ESX, depending on yourenviroment) on your server at theIBM websight athttp://www.ibm.com/systems/support/. The documentationprovides additional installation andconfiguration information that youneed to follow before you use thememory expansion module.Integrated functions:v Integrated management module(IMM), which provides serviceprocessor control and monitoringfunctions, video controller, andremote keyboard, video, mouse,and remote hard disk drivecapabilitiesv Light path diagnosticsv Eight Universal Serial Bus (USB)ports (2.0)– Four on rear of server– Two on front of server– Two internalv Broadcom 5709 dual 10/100/1000MB Ethernet controllerv Matrox video– 16 MB video memory– SVGA compatiblev Serial-attached SCSI (SAS)controller with RAID capabilitiesv Support for ServeRAID-BR10iSAS/SATA and ServeRAID-M5015SAS/SATA controllersv Serial connectorv QPI Expansion PortsElectrical input:v Sine-wave input (50 - 60 Hz)requiredv Input voltage low range:– Minimum: 100 V ac– Maximum: 127 V acv Input voltage high range:– Minimum: 200 V ac– Maximum: 240 V acv Approximate input kilovolt-amperes(kVA):– Minimum: 0.20 kVA– Typical: 1.12 kVA– Maximum: 1.95 kVA (110 V ac)– Maximum: 2.17 kVA (220 V ac)What your server offersThe server uses the following features and technologies:v UEFI-compliant server firmwareIBM UEFI firmware offers several features, including Unified ExtensibleFirmware Interface (UEFI) 2.1 compliance; Active Energy Manager technology;enhanced reliability, availability, and serviceability (RAS) capabilities; and basicinput/output system (BIOS) compatibility support. UEFI replaces the BIOS anddefines a standard interface between the operating system, platform firmware,and external devices. UEFI-compliant System x ® servers are capable of bootingUEFI-compliant operating systems, BIOS-based operating systems, andBIOS-based adapters as well as UEFI-compliant adapters.Note: The server does not support DOS.For more information about UEFI, go to http://www-947.ibm.com/systems/support/supportsite.wss/docdisplay?lndocid=MIGR-5083207&brandind=5000008.v Integrated management moduleThe integrated management module (IMM) combines service processorfunctions, video controller, and remote presence and blue-screen capture featuresin a single chip. The IMM provides advanced service processor control,monitoring, and alerting function. If an environmental condition exceeds athreshold or if a system component fails, the IMM lights LEDs to help youdiagnose the problem, records the error in the IMM event log, and alerts you tothe problem. Optionally, the IMM also provides a virtual presence capability forremote server management capabilities. The IMM provides remote servermanagement through industry-standard interfaces:Chapter 1. The System x3850 X5 and x3950 X5 server 7