Schematic Diagrams
Socket 478 1 of 2 (71-D40U0-D03) B - 3
B.Schematic Diagrams
Socket 478 1 of 2
Sheet 2 of 42
Socket 478 1 of 2
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE +2.5V
+3VS
HBPRM5# 3
HBPRM4# 3
HBPM1# 3
HA#[3..31] 5
HD#[0..63]5
RS#05
RS#15
RS#25
PM_CPUPERF#15
H_DPSLP#29,36
HBPM0# 3
HREQ#[0..4]5
PRE/NOR# 36
VID0 36
VID1 15,36
VID2 36
VID3 36
VID4 36
VID5 36
VIDPWRGD38
HD#1
HD#50
HD#13
HD#19
HD#22
HD#24
HD#27
HD#32
HD#40
HD#52
HD#6
HD#20
HD#28
HD#53
HD#57
HD#59
RS#2
HD#12
HD#21
HD#8
HD#17
HD#36
HD#0
HD#15
HD#51
HBPM1#
HREQ#0
HD#4
HD#5
HD#42
HD#46
HD#62
RS#0
HD#29
HD#11
HD#26
HD#34
HD#35
HD#55
HD#61
HD#10
HD#44
HD#7
HD#47
HBPRM5#
HD#9
HD#14
HD#54
HD#16
HD#33
HD#37
HD#58
HBPRM4#
RS#1
HD#23
HD#30
HD#45
HD#48
HD#60
HD#63
HD#3
HD#31
HD#39
HD#41
HD#56
HD#2
HD#18
HD#25
HD#38
HD#43
HD#49
HREQ#2
HREQ#1
HBPM0#
HD#[0..63]
HA#18
HA#31
HA#13
HA#17
HA#12
HA#24
HA#30
HA#8
HA#7
HA#5
HA#22
HA#25
HA#6
HA#9
HA#11
HA#19
HA#27
HA#15
HA#20
HA#4
HA#3
HA#29
HA#10
HA#28
HA#26
HA#16
HA#23
HA#21
HA#14
HA#[3..31]
HREQ#3
HREQ#4
H_DPSLP#
PM_CPUPERF#
VID1
VID0
HREQ#[0..4]
VID4
PRE/NOR#
VIDPWRGD
VID3
VID5
VID2
R423
51
R369
51
C99
10U(0805)
R308
51
R387
10K
R310
51
R372
10K
C375
0.1UF
T
RP35
8P4R-10K
81
72
6
5
3
4
C96
0.1UF
C369
0.1UF
R294
51
C373
0.1UF
C513
10U(0805)
C403
0.1UF
C372
10U(0805)
C37
10U(0805)
C471
0.1UF
T
C413
10U(0805)
C115
0.1UF
R291
51
T
C398
10U(0805)
R422
51
R293
51
C514
0.1UF
R407
51
C13
0.1UF
C496
0.1UF
C401
0.1UF
C397
0.1UF
C396
0.1UF
R309
51
C404
10U(0805)
C98
10U(0805)
C370
10U(0805)
C497
10U(0805)
R406
51
C494
10U(0805)
C414
0.1UF
T
C400
10U(0805)
T
C335
10U(0805)
C73
0.1UF
R311
51
C491
0.1UF
R292
51
T
C515
0.1UF
C434
0.1UF
C97
10U(0805)
C371
0.1UF
JCPU1A
NORTHWOOD478
B21
B22
A23
A25
C21
D22
B24
C23
C24
B25
G22
H21
C26
D23
J21
D25
H22
E24
G23
F23
F24
E25
F26
D26
L21
G26
H24
M21
L22
J24
K23
H25
M23
N22
P21
M24
N23
M26
N26
N25
R21
P24
R25
R24
T26
T25
T22
T23
U26
U24
U23
V25
U21
V22
V24
W26
Y26
W25
Y23
Y24
Y21
AA25
AA22
AA24
K2
K4
L6
K1
L3
M6
L2
M3
M4
N1
M1
N2
N4
N5
T1
R2
P3
P4
R3
T2
U1
P6
U3
T4
V2
R6
W1
T5
U4
V3
W2
Y1
AB1
AD24
AB4
AA5
Y6
AC4
AB5
AC6
H3
J3
J4
K5
J1
AC24
AC23
AB22
AC21
F4
G5
F1
U6
W4
Y3
AC20
AA20
J26
K25
K26
L25
AE1
AE2
AE3
AE4
AE5
AA2
A10
A12
A14
A16
A18
A20
A8
AA10
AA12
AA14
AA16
AA18
AA8
AB11
AB13
AB15
AB17
AB19
AB7
AB9
AC10
AC12
AC14
AC16
AC18
AC8
AD11
AD13
AD15
AD17
AD19
AD7
AD9
AE10
AE12
AE14
AE16
AE18
AE20
AE6
AE8
AF11
AF13
AF15
AF17
AF19
AF2
AF21
AF5
AF7
AF9
B11
B13
B15
B17
B19
B7
B9
C10
C12
C14
C16
C18
C20
C8
D11
D13
D15
D17
D19
D7
D9
E10
E12
E14
E16
E18
E20
E8
F11
F13
F15
F17
F19
F9
H1
H4
H23
H26
A11
A13
A15
A17
A19
A21
A24
A26
A3
A9
AA1
AA11
AA13
AA15
AA17
AA19
AA23
AA26
AA4
AA7
AA9
AB10
AB12
AB14
AB16
AB18
AB20
AB21
AB24
AB3
AB6
AB8
AC11
AC13
AC15
AC17
AC19
AC2
AC22
AC25
AC5
AC7
AC9
AD1
AD10
AD12
AD14
AD16
AD18
AD21
AD23
AD4
AD8
AE11
AE13
AE15
AE17
AE19
AE22
AE24
AE26
AE7
AE9
AF1
AF10
AF12
AF14
AF16
AF18
AF20
AF26
AF6
AF8
B10
B12
B14
B16
B18
B20
B23
B26
B4
B8
C11
C13
C15
C17
C19
C2
A6
AD25
A7
A22
AD2
AD3
AE21
AF24
AF25
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
TESTHI0
BPM5
BPM4
BPM3
BPM2
BPM1
BPM0
REQ4
REQ3
REQ2
REQ1
REQ0
TESTHI4
TESTHI5
TESTHI7
TESTHI2
RS2
RS1
RS0
TESTHI8
TESTHI9
TESTHI10
TESTHI3
TESTHI6
DEP0
DEP1
DEP2
DEP3
VID4
VID3
VID2
VID1
VID0
TESTHI1
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
BOOTSELECT
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
OPTIMIZED/COMPAT#
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
GHI#
DPSLP#
NC
NC
NC
VID5
NC
NC
NC
C367
10U(0805)
C374
10U(0805)
C36
10U(0805)
C368
0.1UF
C511
10U(0805)
C402
10U(0805)
INTEL P4 CPU SOCKET 478 PART 1