
Intel Desktop Board DG965MQ Technical Product Specification 
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2.5 Interrupts ...................................................................................... 48 
2.6 PCI Interrupt Routing Map ................................................................ 49 
2.7 Connectors and Headers................................................................... 50 
2.7.1 Back Panel Connectors .......................................................... 51 
2.7.2 Component-side Connectors and Headers ................................ 52 
2.8 Jumper Block .................................................................................. 61 
2.9 Mechanical Considerations ................................................................ 62 
2.9.1 Form Factor......................................................................... 62 
2.9.2 I/O Shield ........................................................................... 63 
2.10 Electrical Considerations................................................................... 65 
2.10.1 DC Loading.......................................................................... 65 
2.10.2 Fan Header Current Capability................................................ 65 
2.10.3 Add-in Board Considerations .................................................. 66 
2.10.4 Power Supply Considerations ................................................. 66 
2.11 Thermal Considerations.................................................................... 67 
2.12 Reliability ....................................................................................... 69 
2.13 Environmental ................................................................................ 70 
3Overview of BIOS Features 
3.1 Introduction ................................................................................... 71 
3.2 BIOS Flash Memory Organization....................................................... 72 
3.3 Resource Configuration .................................................................... 72 
3.3.1 PCI Autoconfiguration ........................................................... 72 
3.3.2 PCI IDE Support................................................................... 73 
3.4 System Management BIOS (SMBIOS)................................................. 73 
3.5 Legacy USB Support ........................................................................ 74 
3.6 BIOS Updates ................................................................................. 74 
3.6.1 Language Support ................................................................ 75 
3.6.2 Custom Splash Screen .......................................................... 75 
3.7 BIOS Recovery................................................................................ 75 
3.8 Boot Options................................................................................... 76 
3.8.1 CD-ROM Boot ...................................................................... 76 
3.8.2 Network Boot....................................................................... 76 
3.8.3 Booting Without Attached Devices........................................... 76 
3.8.4 Changing the Default Boot Device During POST ........................ 76 
3.9 Adjusting Boot Speed....................................................................... 77 
3.9.1 Peripheral Selection and Configuration..................................... 77 
3.9.2 BIOS Boot Optimizations ....................................................... 77 
3.10 BIOS Security Features .................................................................... 78 
4Error Messages and Beep Codes 
4.1 Speaker ......................................................................................... 79 
4.2 BIOS Beep Codes ............................................................................ 79 
4.3 BIOS Error Messages ....................................................................... 79 
4.4 Port 80h POST Codes ....................................................................... 80