Acer 486 - Page 3

System Board 1-3
1. Keyboard controller 17. Power daughter board
2. M5105 super I/O controller 18. M1429G system chip
3. System and VGA BIOS 19. Onboard memory (4 MB)
4. RTC Battery 20. SIMM sockets
5. Power connector 21. VGA feature connector
6. IDE fixed disk connector #2* 22. VGA connector
7. IDE fixed disk connector #1 23. Parallel port
8. Diskette drive connector 24. COM2 port
9. ISA riser card connector 25. COM1 port
10. Local bus IDE controller* 26. PS/2 mouse connector
11. M1431 system chip 27. PS/2 keyboard connector
12. Second-level cache* 28. VGA upgrade sockets (1 MB)
13. Power daughter board connectors 29. VGA upgrade sockets (2 MB)
14. TAG RAM 30. Onboard VGA memory (512 KB)
15. Fan power connector 31. VGA chip
16. 486 CPU socket
Figure 1-1 System Board Layout
*
Optional