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HP Dc7700 HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 61

PCI Connectors, PCI 2.3 Connector

UPC - 882780715318

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4.2.6 PCI Connectors PCI 2.3 Connector A1 System Support A49 A52 A62 B2 B49 B52 B62 Figure 4-5. 32-bit, 5.0-volt PCI 2.3 Bus Connector (J20, J21 on system board) Pin B Signal 01 -12 VDC 02 TCK 03 GND 04 TDO 05 +5 VDC 06 +5 VDC 07 INTB- 08 INTD- 09 PRSNT1- 10 RSVD 11 PRSNT2- 12 GND 13 GND 14 RSVD 15 GND 16 CLK 17 GND 18 REQ- 19 +5 VDC 20 AD31 21 AD29 Table 4-5. PCI 2.3 Bus Connector Pinout A Signal Pin B Signal TRST- 22 GND +12 VDC 23 AD27 TMS 24 AD25 TDI 25 +3.3 VDC +5 VDC 26 C/BE3- INTA- 27 AD23 INTC- 28 GND +5 VDC 29 AD21 Reserved 30 AD19 +5 VDC 31 +3.3 VDC Reserved 32 AD17 GND 33 C/BE2- GND 34 GND +3.3 AUX 35 IRDY- RST- 36 +3.3 VDC +5 VDC 37 DEVSEL- GNT- 38 GND GND 39 LOCK- PME- 40 PERR- AD30 41 +3.3 VDC +3.3 VDC 42 SERR- A Signal Pin AD28 43 AD26 44 GND 45 AD24 46 IDSEL 47 +3.3 VDC 48 AD22 49 AD20 50 GND 51 AD18 52 AD16 53 +3.3 VDC 54 FRAME- 55 GND 56 TRDY- 57 GND 58 STOP- 59 +3.3 VDC 60 SDONE n 61 SBO- 62 GND B Signal +3.3 VDC C/BE1AD14 GND AD12 AD10 GND Key Key AD08 AD07 +3.3 VDC AD05 AD03 GND AD01 +5 VDC ACK64+5 VDC +5 VDC A Signal PAR AD15 +3.3 VDC AD13 AD11 GND AD09 Key Key C/BE0- +3.3 VDC AD06 AD04 GND AD02 AD00 +5 VDC REQ64+5 VDC +5 VDC Technical Reference Guide www.hp.com 4-9

Section	Page
Title	1
Contents	3
Chap_1_Introduction_final_review.pdf	7
Introduction	7
1.1 About this Guide	7
1.1.1 Online Viewing	7
1.1.2 Hardcopy	7
1.2 Additional Information Sources	7
1.3 Model Numbering Convention	7
1.4 Serial Number	9
1.5 Notational Conventions	9
1.5.1 Values	9
1.5.2 Ranges	9
1.5.3 Register Notation and Usage	9
1.5.4 Bit Notation and Byte Values	9
1.6 Common Acronyms and Abbreviations	10
Chap_2_System_Overview_final.pdf	17
System Overview	17
2.1 Introduction	17
2.2 Features	18
2.3 Mechanical Design	20
2.3.1 Cabinet Layouts	21
2.3.2 Chassis Layouts	26
2.3.3 Board Layouts	30
2.4 System Architecture	33
2.4.1 Intel Processor Support	35
2.4.2 Chipset	36
2.4.3 Support Components	37
2.4.4 System Memory	37
2.4.5 Mass Storage	38
2.4.6 Serial and Parallel Interfaces	38
2.4.7 Universal Serial Bus Interface	38
2.4.8 Network Interface Controller	38
2.4.9 Graphics Subsystem	39
2.4.10 Audio Subsystem	39
2.5 Specifications	40
Chap_3_Processor_final_review.pdf	45
Processor/Memory Subsystem	45
3.1 Introduction	45
3.2 Intel Pentium Processors	46
3.2.1 Intel Processor Overview	46
3.2.2 Processor Upgrading	48
3.3 Memory Subsystem	48
Chap_4_System_Support_final_review.pdf	53
System Support	53
4.1 Introduction	53
4.2 PCI Bus Overview	53
4.2.1 PCI 2.3 Bus Operation	54
4.2.2 PCI Express Bus Operation	58
4.2.3 Option ROM Mapping	60
4.2.4 PCI Interrupts	60
4.2.5 PCI Power Management Support	60
4.2.6 PCI Connectors	61
4.3 System Resources	63
4.3.1 Interrupts	63
4.3.2 Direct Memory Access	68
4.4 Real-Time Clock and Configuration Memory	71
4.4.1 Clearing CMOS	71
4.4.2 Standard CMOS Locations	72
4.5 System Management	72
4.5.1 Security Functions	72
4.5.2 Power Management	74
4.5.3 System Status	75
4.5.4 Thermal Sensing and Cooling	75
4.6 Register Map and Miscellaneous Functions	76
4.6.1 System I/O Map	76
4.6.2 SCH5317 I/O Controller Functions	77
Chap_5_Input-Output_Interfaces_final_review.pdf	79
Input/Output Interfaces	79
5.1 Introduction	79
5.2 SATA Interfaces	79
5.2.1 SATA Programming	79
5.2.2 SATA Connector	81
5.2.3 RAID Functionality	81
5.3 Diskette Drive Interface	82
5.3.1 Diskette Drive Programming	82
5.3.2 Diskette Drive Connector	86
5.4 Serial Interface	87
5.4.1 Serial Connector	87
5.4.2 Serial Interface Programming	87
5.5 Parallel Interface	89
5.5.1 Standard Parallel Port Mode	89
5.5.2 Enhanced Parallel Port Mode	89
5.5.3 Extended Capabilities Port Mode	90
5.5.4 Parallel Interface Programming	90
5.5.5 Parallel Interface Connector	92
5.6 Keyboard/Pointing Device Interface	93
5.6.1 Keyboard Interface Operation	93
5.6.2 Pointing Device Interface Operation	95
5.6.3 Keyboard/Pointing Device Interface Programming	95
5.6.4 Keyboard/Pointing Device Interface Connector	99
5.7 Universal Serial Bus Interface	100
5.7.1 USB Data Formats	101
5.7.2 USB Programming	102
5.7.3 USB Connector	103
5.7.4 USB Cable Data	104
5.8 Audio Subsystem	105
5.8.1 HD Audio Controller	106
5.8.2 HD Audio Interface	106
5.8.3 HD Audio Codec	107
5.8.4 Audio Programming	108
5.8.5 Audio Specifications	110
5.9 Network Interface Controller	111
5.9.1 Wake-On-LAN Support	112
5.9.2 Alert Standard Format Support	112
5.9.3 Power Management Support	112
5.9.4 NIC Programming	113
5.9.5 NIC Connector	113
5.9.6 NIC Specifications	114
Chap_6_Integrated_Graphics_final_review.pdf	115
Integrated Graphics Subsystem	115
6.1 Introduction	115
6.2 Functional Description	116
6.3 Display Modes	118
6.4 Upgrading Graphics	119
6.5 VGA Monitor Connector	120
Chap_7_Power_and_Signal_final_review.pdf	121
Power and Signal Distribution	121
7.1 Introduction	121
7.2 Power Supply Assembly/Control	121
7.2.1 Power Supply Assembly	122
7.2.2 Power Control	124
7.2.3 Power Management	127
7.3 Power Distribution	128
7.4 Signal Distribution	131
Chap_8_BIOS_ROM_final_review.pdf	135
BIOS ROM	135
8.1 Introduction	135
8.2 ROM Flashing	136
8.2.1 Upgrading	136
8.2.2 Changeable Splash Screen	137
8.3 Boot Functions	137
8.3.1 Boot Device Order	137
8.3.2 Network Boot (F12) Support	138
8.3.3 Memory Detection and Configuration	138
8.3.4 Boot Error Codes	139
8.4 Setup Utility	140
8.5 Client Management Functions	149
8.5.1 System ID and ROM Type	150
8.5.2 Temperature Status	150
8.5.3 Drive Fault Prediction	150
8.6 SMBIOS	151
8.7 USB Legacy Support	151
App_A_Error_Messages__amp__Codes_final_review.pdf	153
A.1 Introduction	153
A.2 Beep/Power LED Codes	153
A.3 Power-On Self Test (POST) Messages	154
A.4 System Error Messages (1xx-xx)	157
A.5 Memory Error Messages (2xx-xx)	158
A.6 Keyboard Error Messages (30x-xx)	159
A.7 Printer Error Messages (4xx-xx)	160
A.8 Video (Graphics) Error Messages (5xx-xx)	160
A.9 Diskette Drive Error Messages (6xx-xx)	161
A.10 Serial Interface Error Messages (11xx-xx)	162
A.11 Modem Communications Error Messages (12xx-xx)	163
A.12 System Status Error Messages (16xx-xx)	164
A.13 Hard Drive Error Messages (17xx-xx)	165
A.14 Hard Drive Error Messages (19xx-xx)	167
A.15 Video (Graphics) Error Messages (24xx-xx)	168
A.16 Audio Error Messages (3206-xx)	168
A.17 DVD/CD-ROM Error Messages (33xx-xx)	169
A.18 Network Interface Error Messages (60xx-xx)	169
A.19 SCSI Interface Error Messages (65xx-xx, 66xx-xx, 67xx-xx)	170
A.20 Pointing Device Interface Error Messages (8601-xx)	171
App_B_ASCII_Character_Set_final_review.pdf	173
B.1 Introduction	173
App_C_Keyboard_final_review.pdf	177
C.1 Introduction	177
C.2 Keystroke Processing	177
C.2.1 PS/2-Type Keyboard Transmissions	179
C.2.2 USB-Type Keyboard Transmissions	180
C.2.3 Keyboard Layouts	180
C.2.4 Keys	183
C.2.5 Keyboard Commands	186
C.2.6 Scan Codes	187
C.3 Connectors	193

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Technical Reference Guide

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4-9

System Support

4.2.6 PCI Connectors

PCI 2.3 Connector

Figure 4-5.

32-bit, 5.0-volt PCI 2.3 Bus Connector (J20, J21 on system board)

Table 4-5.

PCI 2.3 Bus Connector Pinout

B Signal

A Signal

B Signal

A Signal

B Signal

A Signal

-12 VDC

TRST-

GND

AD28

+3.3 VDC

PAR

TCK

+12 VDC

AD27

AD26

C/BE1-

AD15

GND

TMS

AD25

GND

AD14

+3.3 VDC

TDO

TDI

+3.3 VDC

AD24

GND

AD13

+5 VDC

C/BE3-

IDSEL

AD12

AD11

+5 VDC

INTA-

AD23

+3.3 VDC

AD10

GND

INTB-

INTC-

GND

AD22

GND

AD09

INTD-

+5 VDC

AD21

AD20

Key

PRSNT1-

Reserved

AD19

GND

Key

RSVD

+5 VDC

+3.3 VDC

AD18

AD08

C/BE0-

PRSNT2-

Reserved

AD17

AD16

AD07

+3.3 VDC

GND

C/BE2-

+3.3 VDC

AD06

GND

FRAME-

AD05

AD04

RSVD

+3.3 AUX

IRDY-

GND

AD03

GND

RST-

+3.3 VDC

TRDY-

GND

AD02

CLK

+5 VDC

DEVSEL-

GND

AD01

AD00

GND

GNT-

GND

STOP-

+5 VDC

REQ-

GND

LOCK-

+3.3 VDC

ACK64-

REQ64-

+5 VDC

PME-

PERR-

SDONE n

+5 VDC

AD31

AD30

+3.3 VDC

SBO-

+5 VDC

AD29

+3.3 VDC

SERR-

GND

A62

A49

B49

B62

B52

A52