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Front panel audio header with support for Intel HD Audio and AC ’97 Audio . Five analog audio jacks on the back panel . Onboard S/PDIF out header and back panel optical S/PDIF out connector • 8-channel (7.1) Intel HD Audio via the High Definition Multimedia Interface* (HDMI*) Graphics • Integrated graphics support via an HDMI v1.4a interface • Support for PCI Express 3.0 x16 add-in graphics card Note: PCI Express 3.0 is only supported by 3rd generation Intel Core processor family processors Legacy I/O Control Nuvoton* legacy I/O controller for Consumer Infrared (CIR) and hardware management support continued Intel Desktop Board DZ77GAL-70K Technical Product Specification Table 1. Feature Summary (continued) Peripheral Interfaces • Eight USB 3.0 ports: . Four ports implemented with stacked back panel connectors (blue) . Four ports implemented through two dual-port internal connectors (blue) • Eight USB 2.0 ports: . Four ports implemented with stacked back panel connectors (two black and two orange high current charging ports) . Four front panel ports are implemented through two dual-port internal headers • Nine Serial ATA (SATA) ports: . Two SATA 6.0 Gb/s interfaces through the Intel Z77 Express Chipset with Intel® Rapid Storage Technology RAID support (blue) . Two SATA 6.0 Gb/s interfaces through a Marvel 88SE9172 controller (gray) . One back panel eSATA 6.0 Gb/s port through a Marvel 88SE9172 controller (red) . Four internal SATA 3.0 Gb/s interfaces through the Intel Z77 Express Chipset with Intel Rapid Storage Technology RAID support (black) • Two IEEE 1394a ports: . One port via a back panel connector . One port via a front-panel header (blue) Wireless Module • Separate module that provides both Bluetooth* and WiFi included with the desktop board BIOS • Intel® BIOS resident in the SPI Flash device • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS Instantly Available • Support for PCI* Local Bus Specification Revision 2.2 PC Technology • Support for PCI Express* Revision 2.0 • Suspend to RAM support • Wake on PCI, PCI Express, LAN, front panel, CIR and USB ports LAN Support Two Gigabit (10/100/1000 Mb/s) LAN subsystems using the Intel® 82579 Gigabit Ethernet Controller and Intel® 82574 Gigabit Ethernet Controller Expansion • Two PCI Express 3.0 x16 bus add-in card connectors from the processor (2nd Capabilities PCI Express slot is electrically x8) • One PCI Express 2.0 x4 bus add-in card connector from the PCH • Two PCI Express 2.0 x1 bus add-in card connectors from the PCH • Two Conventional PCI bus add-in card connectors from the PCH via a PCI bridge Note: PCI Express 3.0 is only supported by 3rd generation Intel Core processor family processors Hardware Monitor • Hardware monitoring and fan control through the Nuvoton I/O controller Subsystem • Voltage sense to detect out of range power supply voltages • Thermal sense to detect out of range thermal values • Four fan headers using PWM control • Four fan sense inputs used to monitor fan activity • Fan speed control using voltage control (4-pin fan headers front, rear, and auxiliary) with selectable support in BIOS for 3-wire fans • Support for Platform Environmental Control Interface (PECI) Product Description 1.1.2 Board Layout Figure 1 shows the location of the major components on Intel Desktop Board DZ77GAL-70K. Figure 1. Major Board Components Table 2 lists the components identified in Figure 1. Intel Desktop Board DZ77GAL-70K Technical Product Specification Table 2. Components Shown in Figure 1 Label Description A PCI Express x4 bus add-in card connector B Conventional PCI bus add-in card connector C PCI Express x16 bus add-in card connector (x8 electrical; x16 compatible) D S/PDIF out header E Conventional PCI bus add-in card connector F PCI Express x1 bus add-in card connector G PCI Express x16 bus add-in card connector H Battery I PCI Express x1 bus add-in card connector J Rear chassis fan header K Back panel connectors L 12 V processor core voltage connector (2 x 4 pin) M LGA 1155 processor socket N Voltage Regulator status LEDs O Processor fan header P DIMM 3 (Channel A DIMM 0) Q DIMM 1 (Channel A DIMM 1) R DIMM 4 (Channel B DIMM 0) S DIMM 2 (Channel B DIMM 1) T Front chassis fan header U Piezoelectric speaker V Main power connector (2 x 12) W Onboard power button X Onboard reset button Y Power Supervisor LED (Power Fault) Z Intel Z77 Express Chipset AA SATA 6.0 Gb/s connectors through the PCH (blue) BB SATA 3.0 Gb/s connectors through the PCH (black) CC SATA 6.0 Gb/s connectors through a Marvel 88SE9172 controller (gray) DD Standby power LED EE Power On Self Test (POST) code LED display FF Consumer IR receiver (input) header GG Front panel header HH Alternate front panel power LED header II Front panel USB 2.0 headers (black) JJ Consumer IR transmitter (output) header KK Front panel USB 2.0 connector (orange high current charging) LL BIOS configuration jumper block continued Product Description Table 2....