
Contents
vii
Figures
Figure 1. Major Board Components............................................................... 12
Figure 2. Block Diagram.............................................................................. 14
Figure 3. Memory Channel and DIMM Configuration ........................................ 18
Figure 4. Back Panel Audio Connector Options................................................ 24
Figure 5. LAN Connector LED Locations ......................................................... 26
Figure 6. Thermal Sensors and Fan Headers .................................................. 28
Figure 7. Location of the Standby Power Indicator LED .................................... 35
Figure 8. Detailed System Memory Address Map............................................. 38
Figure 9. Back Panel Connectors .................................................................. 41
Figure 10. Component-side Connectors and Headers....................................... 42
Figure 11. Connection Diagram for Front Panel Header.................................... 47
Figure 12. Connection Diagram for Front Panel USB Headers............................ 49
Figure 13. Location of the Jumper Block ........................................................ 50
Figure 14. Board Dimensions....................................................................... 51
Figure 15. Localized High Temperature Zones ................................................ 54
Tables
Table 1. Feature Summary.......................................................................... 10
Table 2. Board Components Shown in Figure 1............................................... 13
Table 3. Supported Memory Configurations.................................................... 16
Table 4. Audio Jack Retasking Support.......................................................... 23
Table 5. LAN Connector LED States .............................................................. 26
Table 6. Effects of Pressing the Power Switch................................................. 29
Table 7. Power States and Targeted System Power......................................... 30
Table 8. Wake-up Devices and Events........................................................... 31
Table 9. System Memory Map...................................................................... 39
Table 10. Component-side Connectors and Headers Shown in Figure 10 ............ 43
Table 11. Front Panel Audio Header.............................................................. 44
Table 12. Serial ATA Connectors .................................................................. 44
Table 13. Serial Port Header........................................................................ 44
Table 14. S/PDIF Connector ........................................................................ 44
Table 15. Rear Chassis (3-Pin) Fan Header .................................................... 45
Table 16. Processor (4-Pin) Fan Header......................................................... 45
Table 17. Processor Core Power Connector .................................................... 46
Table 18. Main Power Connector .................................................................. 46
Table 19. Front Panel Header....................................................................... 47
Table 20. States for a One-Color Power LED .................................................. 48
Table 21. States for a Two-Color Power LED .................................................. 48
Table 22. BIOS Setup Configuration Jumper Settings ...................................... 50
Table 23. Recommended Power Supply Current Values.................................... 52
Table 24. Fan Header Current Capability ....................................................... 52
Table 25. Thermal Considerations for Components.......................................... 54
Table 26. Desktop Board DG31GL Environmental Specifications........................ 55
Table 27. BIOS Setup Program Menu Bar ...................................................... 58
Table 28. BIOS Setup Program Function Keys ................................................ 58