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Chapter 1
Motherboard 4845GVQ
4845GVQ Component Layout :
1. Back Panel: Back Panel I/O Connectors ( Mouse, Keyboard, COM1,
VGA, Printer, Mic in, Line in, Speaker-out, Game Stick, USB0/1,
Optional RJ45)
2. JP5: USB0/1 Wake-up Function Selector
3. Chip VT6105: Optional LAN Controller
4. PCI1: PCI Slot
5. PCI2: PCI Slot
6. Intel ICH4: South Bridge
7. Flash ROM: Award BIOS
8. Panel1: Front Panel Connectors
9. Fan2: Cooling Fan Connector with sensor function
10. (Default connector)
11. Chip VT6306: Optional IEEE 1394 high speed Serial Bus chip
12. IDE2: IDE Connector
13. IDE1: IDE Connector
14. USB1: USB Pin-header for 2 USB ports
15. JP7: Front Audio Connector
16. COM2: Serial Pin-header for one serial port
17. JP3: Clear CMOS Selector
18. Battery
19. PW1: ATX Main Power Connector
20. Fan3: Cooling Fan Connector with sensor function
21. DIMM2: DDR SDRAM Slot
22. DIMM1: DDR SDRAM Slot
23. JP1: CPU Frequency Selector
24. Socket 478: Pentium 4 CPU socket
25. P4 CPU Fan Base
26. PW2: +12V Power Connector
27. Fan1: Cooling Fan Connector with sensor function
28. JP2: Keyboard & Mouse Wake-up Selector
29. Fan4: Cooling Fan Connector without sensor function
30. IR1: Infrared Signal Transmission/Reception Connector
31. CDIN1: CD Audio-in Connector
32. CDIN2: CD Audio-in Connector
33. FD1: Floppy Disk Drive Connector
34. USB2: USB Pin-header for 2 USB ports
35. IT8712F: LPC I/O chip with Hardware Monitor function
36. ALC650: AC'97 Audio Codec, 6-channel compliant
1-9
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