Dell POWEREDGE R710 Series Technical Manualbook

Also see for POWEREDGE R710: Manual Installation Technical guide Hardware owner's manual User manual

Contents

Dell™ PowerEdge™ R710 Technical Guidebook32Table: Nehalem P-State ProjectionsC. I2C (Inter-Integrated Circuit)What is I2C? A simple bi-directional 2-wire bus for efficient inter-integrated circuit control. All I2C-buscompatible devices incorporate an on-chip interface which allows them to communicate directly witheach other via the I2C-bus. This design concept solves the many interfacing problems encounteredwhen designing digital control circuits. These I2C devices perform communication functions betweenintelligent control devices (e.g., microcontrollers), general-purpose circuits (e.g., LCD drivers, remoteI/O ports, memories), and application-oriented circuits.The PowerEdge R710, BIOS accesses the I 2C through the ICH9 (Intel I/O Controller Hub 9). There are twoMUXes on ICH9’s I2 C bus.• One MUX (U_ICH_SPD) controls the DIMM SPDs through four split segments• The other MUX (U_ICH_MAIN) controls the clock buffers, TOE, USB Hub through four splitsegments.BIOS controls both the MUXes through the two select lines using GPIO pins.Clock chip, USB hub, and the front panel EEPROM device addresses are located on the IOH I2C bus.sectiOn 10. embeDDeD nics / lan On mOtheRbOaRD (lOm)a. Overview / DescriptionEmbedded Gigabit Ethernet Controllers with TCP Offload Engine (TOE) supportTwo embedded Broadcom 5709C dual-port LAN controllers are on the R710 planar as independentGigabit Ethernet interface devices. The following information details the features of the LAN devices.• x4 PCI Express Gen2 capable interface• The PowerEdge R710 operates this controller at Gen1 speed• Integrated MAC and PHY 3072x18 Byte context memory• 64 KB receive buffer• TOE (TCP Offload Engine)• iSCSI controller (enabled through an optional hardware key)• RDMA controller (RNIC) (enabled post-RTS through an optional hardware key)• NC-SI (Network Controller-Sideband Interface) connection for manageability• Wake-On-LAN (WOL)• PXE 2.0 remote boot• iSCSI boot• IPv4 and IPv6 support• Bare metal deployment supportPROcnumbeR qDf # fRequency stanDaRDtDP lfm tDP P-state nOtesE5540 Q1G2 2.53 80 75 Pmin+7 D-0X5550 Q1GJ 2.67 95 75 Pmin+8 D-0X5560 Q1GF 2.80 95 75 Pmin+9 D-0X5570 Q1G9 2.93 95 75 Pmin+10 D-0W5580 Q1G6 3.20 130 98 Pmin+12 D-0