Intel VC820 - Desktop Board Motherboard Design Manual page 224

8 7
AGP Connector
D
10,22,23,34
C
B
A
9
8 7
6
VCC3_3
SBA[7:0]
9
9
ST[2:0] VCC5
AGP_OC#
25
USBAGP+
25
PIRQ#B
AGPCLK_CONN
7
GREQ#
9,34
ST0
ST2
RBF#
9,34
SBA0
SBA2
SBSTB
9,34
VCC3_3SBY
SBA4
SBA6
GAD31
GAD29
GAD27
GAD25
ADSTB1
9,34
GAD23
GAD21
GAD19
GAD17
GC/BE#2
GIRDY#
9,34
GDEVSEL#
9,34
GPERR#
34
GSERR#
34
GC/BE#1
GAD14
GAD12
GAD10
GAD8
ADSTB0
9,34
GAD7
GAD5
GAD3
GAD1
MCH_AGPREF
8
9 GAD[31:0]
GC/BE#[3:0]
6
5 4
VDDQ
VCC12
J13
AGP4XU_20
B1 A1
OVRCNT# 12V
B2 A2
TYPEDET#
5V_A TYPEDET#
B3 A3
5V_B RESV_A
B4 A4
USBAGP-
USB-
USB+
B5 A5
GND_K GND_A
B6 A6
INTB# INTA#
B7 A7
PCIRST#
CLK RST#
B8 A8
GGNT#
REQ# GNT#
B9 A9
VCC3_3_F VCC3_3_A
B10 A10
ST0 ST1
B11 A11
ST2 RESV_B
B12 A12 PIPE#
RBF# PIPE#
B13 A13
GND_L GND_B
B14 A14 WBF#
RESV_H WBF#
B15 A15
SBA0 SBA1
B16 A16
VCC3_3_B
VCC3_3_G
B17 A17
SBA2 SBA3
B18 A18 SBSTB#
SB_STB SB_STB#
B19 A19
GND_M GND_C
B20 A20
SBA5
SBA4
B21 A21
SBA7
SBA6
B22 A22
RESV_C
RESV
B23 A23
GND_D
GND_N
B24 A24
RESV_D
3_3VAUX1
B25 A25
VCC3_3_C
VCC3_3_H
B26 A26
AD30
AD31
B27 A27
AD28
AD29
B28 A28
VCC3_3_I VCC3_3_D
B29 A29
AD26
AD27
B30 A30
AD24
AD25
B31 A31
GND_E
GND_O
B32 A32
AD_STB1#
AD_STB1
B33 A33
AD23 C/BE3#
B34 A34
VDDQ_A
VDDQ_F
B35 A35
AD21 AD22
B36 A36
AD19 AD20
B37 A37
GND_P GND_F
B38 A38
AD17 AD18
B39 A39
C/BE2# AD16
B40 A40
VDDQ_G VDDQ_B
B41 A41
GFRAME#
IRDY# FRAME#
B42 A42
3_3VAUX2 RESV_E
B43 A43
GND_Q GND_G
B44 A44
RESV_K RESV_F
B45 A45
VCC3_3_J VCC3_3_E
B46 A46
GTRDY#
DEVSEL# TRDY#
B47 A47
GSTOP#
VDDQ_H STOP#
B48 A48
PCI_PME#
PERR# PME#
B49 A49
GND_R GND_H
B50 A50
SERR# PAR
B51 A51
C/BE1# AD15
B52 A52
VDDQ_I VDDQ_C
B53 A53
AD14 AD13
B54 A54
AD12 AD11
B55 A55
GND_S GND_I
B56 A56
AD10 AD9
B57 A57
C/BE0#
AD8
B58 A58
VDDQ_J VDDQ_D
B59 A59 ADSTB#0
AD_STB0#
AD_STB0
B60 A60
AD6
AD7
B61 A61
GND_J
GND_T
B62 A62
AD4
AD5
B63 A63
AD2
AD3
B64 A64
VDDQ_E
VDDQ_K
B65 A65
AD0
AD1
B66 A66
VREF_GC
VREF_CG
5 4
3 2
21,31
25
PIRQ#A
10,18,22,23,34
8,10,12,13,14,18,22,23,24
9,34
ST1
9,34
9,34
SBA1
SBA3
9,34
SBA5
SBA7
AGPREF circuitry should be placed close to MCH.
GAD30
GAD28
GAD26
GAD24
ADSTB#1
TYPEDET#
9,34
21,31
GC/BE#3
GAD22
GAD20
GAD18
GAD16
9,34
9,34
9,34
10,18,22,23
GPAR 9,34
GAD15
GAD13
GAD11
GAD9
GC/BE#0
9,34
GAD6
GAD4
GAD2
TITLE: INTEL(R) 820 CHIPSET DUAL PROCESSOR CUSTOMER REFERENCE BOARD
GAD0
AGP CONNECTOR
PCD PLATFORM DESIGN
R
1900 PRAIRIE CITY ROAD
FOLSOM, CALIFORNIA 95630
3 2
1
D
VDDQ
C
301-1%
CON_AGPREF_Q
3
Q8
200-1%
3
1 1
2
2
B
CONN_AGPREF
8
A
REV:
3.03
DRAWN BY: PROJECT:
LAST REVISED: SHEET:
11-30-1999_10:10 21 OF 38
1