Acer 486 User Manual page 3

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