Service manual
Schematic Diagrams
ATHLON 64 3/4 B - 5
B.Schematic Diagrams
ATHLON 64 3/4
+1.3V
+1.2V_HT
+2.6V
+2.6V
+2.6V
+2.6V
+2.6V
VCORE
+3VH8
+3VH8
2.6VDDA
+2.6VS
+2.6VS
+3VH8
+3V
2.6VDDA
+3V
H_VID4 [17,33]
H_VID0 [17,33]
H_VID1 [17,33]
H_VID2 [17,33]
H_VID3 [17,33]
CPUCLK_H[9]
VCORE+[5,33]
CPUCLK_L[9]
TRMTRIP# [35]
+3VS [2,6,8,11,12,13,14,15,16,17,19,20,21,23,24,26,27,29,30,31]
+2.6V [2,3,5,6,7,14,31,32]
+1.2V_HT [2,9,13]
H8_THRMTRIP# [25]
VCORE [5,33]
CPU_PWRGD[9]
+VDD3 [8,17,18,31,35]
LDTSTOP#[9]
CPURST#[9]
VCORE-[5,33]
THERMAL_ON#[25]
H8_SCLK1 [25]
PM_THRM# [17]
H8_SDAT1 [25]
H8_THRM# [25]
+1.3V [3,7,32]
+3VH8 [25,26,31]
THERMTRIP# [14]
+2.6VS [9,12,13,14,31]
VDDIOFB_H[32]
VDDIOFB_L[32]
+3V [15,17,18,19,20,21,22,26,28,31,32,33]
PWRGD[8,17,25,26]
H_VID4
H_VID3
H_VID2
H_VID1
H_VID0
Z0416
Z0415
Z0413
BP3
BP2
Z0417
Z0418
Z0408
P_DBRDY
P_TDO
BP0
BP1
P_DBREQ_L
Z0403
Z0406
Z0407
DCLKTWO
Z0410
Z0420
Z0419
Z0411
L0_REF1
L0_REF0
Z0402
Z0409
Z0414
Z0421
Z0422
SCANSHENA
CPURST#
THERMDC
THERMDA
Z0412
P_TCK
P_TMS
P_TDI
P_TRST_L
P_TRST_L
P_TDI
P_TCK
P_TMS
CPURST#
THERMTRIP
Z0424
Z0425
Z0423
Z0401
THERMDC
THERMDA
SCANCLK1
SCANCLK2
SCANSHENB
SCANEN
SCANEN
SCANSHENB
SCANCLK2
SCANCLK1
Z0404
EN_2.5VDDA
R326 44.2_1%
R341 *560
R63 *560
C101
3300p
T31
R72 680
R346 680
ATHLON 64 (C)
U25C
ZIF_SOCKET754
AH25
AJ25
AF20
AE18
AJ27
AF27
AE26
A23
A24
B23
AE12
AF12
AE11
AJ21
AH21
AJ23
AH23
AE24
AF24
C16
AG15
AH17
C15
E20
E17
B21
A21
C18
A19
AJ28
A28
AF21
AF22
AF23
AE23
C1
J3
R3
AA2
D3
AG2
B18
AH1
AE21
C20
AG4
C6
AG6
AE9
AG9
A20
A26
A27
AE15
AF15
AG14
AF14
AG13
AG17
AG18
AH18
AJ18
AH19
AJ19
AE19
D18
C19
D20
C21
B19
A22
AF18
D22
C22
B13
B7
C3
K1
R2
AA3
F3
C23
AG7
AE22
C24
A25
C9
AE13
VDDA1
VDDA2
RESET_L
PWROK
LDTSTOP_L
L0_REF1
L0_REF0
COREFB_H
COREFB_L
CORE_SENSE
VDDIOFB_H
VDDIOFB_L
VDDIO_SENSE
CLKIN_H
CLKIN_L
NC_AJ23
NC_AH23
NC_AE24
NC_AF24
VTT_A5
VTT_B5
DBRDY
NC_C15
TMS
TCK
TRST_L
TDI
NC_C18
NC_A19
KEY0
KEY1
NC_AF21
NC_AF22
NC_AF23
NC_AE23
NC_C1
NC_J3
NC_R3
NC_AA2
NC_D3
NC_AG2
NC_B18
NC_AH1
NC_AE21
NC_C20
NC_AG4
NC_C6
NC_AG6
NC_AE9
NC_AG9
THERMTRIP_L
THERMDA
THERMDC
VID0
VID1
VID2
VID3
VID4
NC_AG17
NC_AG18
NC_AH18
NC_AJ18
G_FBCLKOUT_H
G_FBCLKOUT_L
DBREQ_L
NC_D18
NC_C19
NC_D20
NC_C21
NC_B19
TDO
NC_AF18
NC_D22
NC_C22
NC_B13
NC_B7
NC_C3
NC_K1
NC_R2
NC_AA3
NC_F3
NC_C23
NC_AG7
NC__AE22
NC_C24
NC_A25
NC_C9
VTT_SENSE
R62 680
R80 10K_04
Q64
2N3904
B
E
C
T27
Q22
2N3904
B
E
C
R335
4.7K_04
L9 FCI2012F-R33K
C99
0.1u_X7R_04
C534
2200p
T28
T29
U23
F75383M
1
2
3
4
5
6
7
8
VDD
D+
D-
THERM
GND
ALERT
SDATA
SCLK
R347 680
Q61
AO3409
G
DS
C100
0.22u_04
D28 SCS751V
AC
R73 680
C898
*0.1u_04
R332
10K_04
C135
0.1u_X7R_04
R342 680
Q62
2N7002
G
DS
+
C138
*47u/6.3V_B
T34
R55 820
R343 680
R339
169_1%
R337
100K_04
R75
*0_04
RN35
8P4RX560_0402
1
2
3
45
6
7
8
R60 820
R325 44.2_1%
R338 200_1%
C539
1u_04
R70 *560
R71 80.6_1%
R336
4.7K_04
RN36 8P4RX680_0402
1
2
3
4 5
6
7
8
R340 100K_04
C114
0.01u_04
T23
T33
R59 680
R348 680
C542 3900P_04
C875
22u_12
C541 3900P_04
C108
1u_04
D3 1N4148
AC
T32
R53
11K_1%
U4
SC1563ISK
5
2
1
4
3
VIN
GND
SHDN
VO
ADJ
Q16
2N7002
G
DS
T22
R46 680
T30
C91
0.1u_04
R61
10K_04_1%
T24
R57
10K_04
C876
22u_12
C84
0.22u_04
R42
*470_0805
C104
*0.1u_04
R67
100_1%
J1
OPEN
12
R95 *0_04
C831
10u_08
C85
3300p
ROUT AS DIFF 5 / 5 / 5 / 20
LAYOUT :PLACE 169 OHM NO MORE THAN
500 MILS FORM CPU
Low active to short
down system.
+2.5V 2.4~2.6 35mA
300nH/350mA
TOP SIDE
ID
CPU00
VGA11
VCORE Feedback
DUAL2.5V,DUAL1.25V Feedback
The cpu core is held in Low power state & MRMCLKA/B & MEMRESET_L
Output are forced Low, When CPURST# IS Asserted.
35mA
Hyper Transport I/O Compensation
R71 Should be placed as close to the CPU as possible.
G_FBCLKOUT_H
/_L route 8/5/20.
ROUTE AS DIFF PAIR
10 /5 /10 10
Layout Note:Layout Note:
Route H_THERMDA and H_THERMDC
on the same layer.
10 mil trace on 10 mil spacing.
Near to ADM1032
PLEASE WITHIN 1" 5 MIL TRAVE 10 MIL SPACE
35mA
S1 ON S3 OFF
EN_2.6VDDA--> Low: Enable Hi :Disable
1005
Vout = 1.2(R53+R61)/R61
Sheet 4 of 44
ATHLON 64 3/4