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Lenovo NetVista Technical information manual for NetVista 6269, 6568, 6569, 65 - Page 13

System board features, System board layout for the NetVista A40 and A40p computer

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Chapter 2. System board features This section includes information about system board features. System board layout for the NetVista A40 and A40p computer The system board might look slightly different from the one shown. Note: A diagram of the system board, including switch and jumper settings, is attached to the computer cover. 1 Fan connector 2 2 Microprocessor 3 DIMM 1 4 DIMM 2 5 Power LED connector 6 RFID connector 7 Front USB connector 8 Secondary IDE connector 9 Diskette drive connector 10 Primary IDE connector 11 Power supply connector 12 Clear CMOS/recovery jumper 13 Fan connector 1 14 Battery 15 SCSI adapter LED connector 16 Alert on LAN connector 17 Wake on LAN connector 18 PCI slot 3 19 PCI slot 2 20 PCI slot 1 21 AGP slot 22 CD-ROM audio connector 23 Speaker connector © Copyright IBM Corp. 2000 3

Section	Page
Chapter 1. System overview	11
Major features	11
Other features	12
Network support	12
Wake on LAN	12
Chapter 2. System board features	13
System board layout for the NetVista A40 and A40p computer	13
Riser card layout for the small form factor desktop model computer	14
System board layout for the A20 model computer	14
Microprocessor features	15
Pentium III microprocessor with MMX technology	15
Celeron microprocessor with MMX technology	15
Chip set control	16
Memory subsystem	16
PCI bus	17
IDE bus master interface	17
USB interface	17
Super I/O controller	18
Diskette drive interface	18
Serial ports	18
Parallel port	19
Keyboard and mouse ports	19
Low pin-count bus	19
Video subsystem	20
Features of the Intel 815E/810E integrated graphics subsystem	20
Features of the NVidia 4x AGP adapter	21
Monitor support	21
Audio subsystem	21
Network connection	22
Real-time clock and CMOS	22
Flash EEPROM	22
Expansion adapters	22
Cable connectors	23
Chapter 3. Physical specifications	27
Physical specifications — A40 and A40p small form factor desktop model	27
Physical specifications — A40 and A40p desktop model	28
Physical specifications — A20 desktop model	29
Chapter 4. Power supply	31
Power input	31
Power output	31
Component outputs	32
Output protection	32
Internal device connectors	33
Chapter 5. System software	35
BIOS	35
Plug and Play	35
POST	35
Configuration/Setup Utility program	36
Advanced Power Management (APM)	36
Advanced Configuration and Power Interface (ACPI)	36
Flash update utility program	36
Diagnostic program	36
Chapter 6. System compatibility	37
Hardware compatibility	37
Hardware interrupts	37
Hard disk drives and controller	38
Machine-sensitive programs	38
Appendix A. Connector-pin assignments	39
Appendix B. System address maps	55
Appendix C. IRQ and DMA channel assignments	59
Appendix D. Error codes	61