1-11
Chapter 1 Motherboard 4S648/4S648N
8. CPU Fan Base
9. Socket 478 for P4 CPU
10. JP5: Jumper for Keyboard/Mouse Wake-up function
11. Back Panel: Back Panel I/O Connectors ( Mouse, Keyboard,
COM1, COM2, Printer, USB2, USB1, Mic in, Line in, Speaker-out,
RJ45 (for 4S648N motherboard only)
12. ATX2: ATX Main Power Connector
13. FAN2: Cooling Fan Connector
14. SPDIF1: SPDIF S/P Digital Interface Format) Connector
15. JP11: Jumper for USB2 Keyboard Mouse Wake-up function
16. Chip ALC650: Chip for AC’97 6-channel Audio Codec
17. AUXIN1: Audio-in Connector
18. CD1: Pin Header for CD Audio-in
19. GAME1: Game Port
20. IR1: Connector for Infrared signal transmission
21. WOL1: Connector for Wake-on-LAN function
22. USB3: Pin Header supporting 2 external USB Ports
23. JP10: Jumper for USB3 Keyboard/Mouse Wake-up function
24. Panel 1: Front Panel Connector
25. IT8705F: LPC Super I/O Chip
26. DEBUG1: Connector for Printer ERROR debug
27. North Bridge SiS 648
28. ATX2: +12V ATX Power Connector
1. FDC1: Floppy Drive Connector
2. FAN3: Cooling Fan Connector
3. JP4: Jumper for clearing CMOS select
4. South Bridge SiS963L
5. IDE1: IDE Connector
6. IDE2: IDE Connector
7. FAN1: CPU Cooling Fan Connector
4S648/4S648N Component Layout Description: