IBM 6278 Personal Computer User Manual


 
Figures
1. Memory configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Video subsystem resources ........................................ 6
3. Supported VGA video modes ....................................... 7
4. Supported Enhanced VGA video modes ................................. 7
5. Serial port assignments ........................................... 11
6. Parallel port assignments .......................................... 11
7. BIOS configuration jumper (J7A1) ..................................... 13
8. Power Input Requirements ......................................... 17
9. Power Output (145 Watt) .......................................... 17
10. System board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11. Keyboard port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12. Auxiliary device port ............................................. 18
13. PCI-bus adapters (Per Slot) either/or ................................... 18
14. USB port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
15. Internal DASD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
16. Video port pin 9 ............................................... 18
17. 3.5-inch diskette drive reading, writing, and formatting capabilities .................. 23
18. Monitor port connector pin assignments ................................. 25
19. System Memory Connector Pin Assignments .............................. 25
20. System memory connector pin input/output ............................... 27
21. PCI bus connector .............................................. 29
22. PCI connector pin assignments ...................................... 29
23. IDE connector pin assignments ...................................... 31
24. Diskette Drive Connector Pin Assignments ................................ 32
25. Power Supply Connector Pin Assignments ................................ 32
26. J13 Modem/Ring Wakeup Connector Pin Assignments ........................ 33
27. J22 Wake on LAN Connector Pin Assignments ............................. 33
28. USB Port Connector Pin Assignments .................................. 33
29. Mouse port connector pin assignments .................................. 33
30. Keyboard port connector pin assignments ................................ 34
31. Serial Port Connector Pin Assignments .................................. 34
32. Parallel port connector pin assignments ................................. 34
33. System memory map ............................................ 36
34. I/O address map ............................................... 36
35. DMA I/O address map ........................................... 38
36. IRQ channel assignments ......................................... 40
37. DMA channel assignments ......................................... 40
Copyright IBM Corp. September 1999 v