Schematic Diagrams
CPU Prescott - 1 of 2 (71-L27T0-002) B - 3
B.Sch
e
m
a
tic D
iag
rams
CPU Prescott - 1 of 2
Sheet 2 of 29
CPU Prescott 1 of 2
HREQ#0
C382
22UF/6.3V
HD#[32..47]
6
BNR#
6
HA#7
HD#50
HD#60
HD#58
HA#25
Z0207
C365
22UF/6.3V
HOST DATA
HOST DATA
HOST ADDRESS
U5A
CPU_LGA775-P4
L5
P6
M5
L4
M4
R4
T5
U6
T4
U5
U4
V5
V4
W5
N4
P5
K4
J5
M6
K6
J6
R6
G5
AB6
W6
Y6
Y4
AA4
AD6
AA5
AB5
AC5
AB4
AF5
AF4
AG6
AG4
AG5
AH4
AH5
AJ5
AJ6
AC4
AE4
AD5
D2
C2
D4
H4
G8
B2
C1
E4
AB2
P3
C3
E3
AD3
G7
F2
AB3
U2
U3
F3
G3
G4
H5
J16
H15
H16
J17
H1
G23
B3
F5
A3
B4
C5
A4
C6
A5
B6
B7
A7
A10
A11
B10
C11
D8
B12
C12
D11
A8
C8
B9
G16
E15
E16
G18
G17
F17
F18
E18
E19
F20
E21
F21
G21
E22
D22
G22
D19
G20
G19
G9
F8
F9
E9
D7
E10
D10
F11
F12
D13
E13
G13
F14
G14
F15
G15
G11
G12
E12
D20
D17
A14
C15
C14
B15
C18
B16
A17
B18
C21
B21
B19
A19
A22
B22
C20
A16
C17
A03#
A04#
A05#
A06#
A07#
A08#
A09#
A10#
A11#
A12#
A13#
A14#
A15#
A16#
RSVD
RSVD
REQ0#
REQ1#
REQ2#
REQ3#
REQ4#
ADSTB0#
PC_REQ#
A17#
A18#
A19#
A20#
A21#
A22#
A23#
A24#
A25#
A26#
A27#
A28#
A29#
A30#
A31#
A32#
A33#
A34#
A35#
RSVD
RSVD
ADSTB1#
ADS#
BNR#
HIT#
RSP#
BPRI#
DBSY#
DRDY#
HITM#
IERR#
INIT#
LOCK#
TRDY#
BINIT#
DEFER#
EDRDY#
MCERR#
AP0#
AP1#
BR0#
TESTHI08
TESTHI09
TESTHI10
DP0#
DP1#
DP2#
DP3#
GTLREF0
RESET#
RS0#
RS1#
RS2#
D00#
D01#
D02#
D03#
D04#
D05#
D06#
D07#
D08#
D09#
D10#
D11#
D12#
D13#
D14#
D15#
DBI0#
DSTBN0#
DSTBP0#
D32#
D33#
D34#
D35#
D36#
D37#
D38#
D39#
D40#
D41#
D42#
D43#
D44#
D45#
D46#
D47#
DBI2#
DSTBN2#
DSTBP2#
D16#
D17#
D18#
D19#
D20#
D21#
D22#
D23#
D24#
D25#
D26#
D27#
D28#
D29#
D30#
D31#
DBI1#
DSTBN1#
DSTBP1#
D48#
D49#
D50#
D51#
D52#
D53#
D54#
D55#
D56#
D57#
D58#
D59#
D60#
D61#
D62#
D63#
DBI3#
DSTBN3#
DSTBP3#
C357
22UF/6.3V
C392
0.1UF
V_CORE
HA#19
EDRDY#
DRDY#
6
HDSTBN#1
HA#31
C379
10UF(0805)_R
C388
0.01UF_X7R
BR#0
DRDY#
RS#2
HD#[48..63]
6
C390
0.1UF
HDSTBP#2
6
HD#45
HD#7
1.55V
HITM#
HDSTBN#3
HA#12
HA#8
C385
22UF/6.3V
V_CORE
V_CORE
HD#31
R683
62
HD#62
HA#4
HD#[0..15]
6
VTT_OL
HD#22
C370
22UF/6.3V
V_CORE
DBSY#
HD#16
Z0205
C389
1UF_X7R(0603)
HDSTBP#0
6
HD#29
C384
22UF/6.3V
C355
22UF/6.3V
HDB#0
HD#14
HGTLREF
HDSTBP#2
HD#43
HDSTBN#2
Z0216
R685
100_1%
HD#48
HD#40
DEFER#
6
HDB#3
6
PLEASE COLSE TO Pin-H1
HREQ#4
HD#30
C374
10UF(0805)_R
BPRI#
6
V_CORE
HD#61
C378
10UF(0805)_R
C395
0.1UF
HREQ#2
Z0202
C367
22UF/6.3V
HITM#
6
HDSTBP#0
HD#26
Z0206
HD#52
C360
10UF(0805)
HREQ#3
6
HD#41
Inside CPU socket
Button Side
Z0213
Z0217
C393
0.1UF
HA#14
R679
62
RS#1
6
HD#59
C358
10UF(0805)_R
V_CORE
HA#13
HD#34
C361
10UF(0805)
HADSTB#1
6
HD#2
C354
22UF/6.3V
HADSTB#1
HD#33
HDSTBN#1
6
HD#6
Z0210
HA#28
C359
10UF(0805)_R
HDSTBN#0
6
HREQ#1
6
V_CORE
HREQ#3
HIT#
CPURST#
HD#1
BR0#
6
HD#46
HA#24
C394
0.1UF
HADSTB#0
C366 220PF
C377
10UF(0805)
HD#27
HA#10
HD#20
HREQ#4
6
RS#0
HD#39
C380
22UF/6.3V
HD#63
HA#3
HD#38
Z0203
HD#19
HD#23
HDB#1
6
HD#10
R682
62
RS#2
6
VTT_OL
VTT_OL
HD#9
HDSTBP#1
HD#36
HA#11
HA#16
IERR#
Z0201
C396
0.1UF
HTRDY#
HA#23
Z0204
CPURST#
6
HD#13
R680
62
DBSY#
6
HDSTBN#0
C362
10UF(0805)
HDB#2
6
VTT1.2V
VTT1.2V
R678
62
C350
22UF/6.3V
HD#32
BPRI#
C376
10UF(0805)
C371
22PF
HD#11
HD#35
HD#47
C387
0.1UF
HLOCK#
HA#6
HD#18
HREQ#0
6
V_CORE
HD#17
Z0215
R681
62
C363
10UF(0805)
HD#12
EDRDY#
HLOCK#
6
HD#55
HD#8
VTT_OL
HREQ#1
HDSTBP#1
6
HD#3
HA#27
TESTHI8
ADS#
6
BNR#
C375
10UF(0805)
C391
0.1UF
HDSTBN#2
6
C372
22UF/6.3V
INIT#
14,21
HA#[17..31]
6
Z0208
U5D
CPU_LGA775-P4
AM29
AM30
AM8
AM9
AN11
AN12
AN14
AN15
AN18
AN19
AN21
AN22
AN25
AN26
AN29
AN30
AN8
AN9
J10
J11
J12
J13
J14
J15
J18
J19
J20
J21
J22
N25
N26
N27
N28
N29
N30
N8
P8
R8
T23
T24
T25
T26
T27
T28
T29
T30
T8
U23
U24
J23
J24
J25
J26
J27
J28
J29
J30
J8
J9
K23
K24
K25
K26
K27
K28
K29
K30
K8
L8
M23
M24
M25
M26
U25
U26
U27
U28
U29
U30
U8
V8
W23
W24
W25
W26
W27
W28
W29
W30
W8
Y23
Y24
Y25
Y26
Y27
Y28
Y29
Y30
Y8
M29
M30
M8
N23
N24
M27
M28
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
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
C353
22UF/6.3V_R
HA#5
HA#26
C383
22UF/6.3V
RS#0
6
HINIT#
C356
22UF/6.3V_R
C352
22UF/6.3V_R
HD#57
HD#24
HA#15
Z0211
HD#15
HA#30
HPCREQ#
C397
0.1UF
HDSTBN#3
6
HD#54
HD#28
C369
22UF/6.3V
HDB#2
HA#22
HA#17
HGTLREF
Z0212
C381
22UF/6.3V
HIT#
6
V_CORE
4,6,14,22,27
78~119A
HDB#3
U5C
CPU_LGA775-P4
AA8
AB8
AC23
AC24
AC25
AC26
AC27
AC28
AC29
AC30
AC8
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD8
AE11
AE12
AE14
AE15
AE18
AE19
AE21
AE22
AE23
AE9
AF11
AF12
AF14
AF15
AF18
AF19
AF21
AF22
AF8
AF9
AG11
AG12
AG14
AG15
AG18
AG19
AG21
AG22
AG25
AG26
AG27
AG28
AG29
AG30
AG8
AG9
AH11
AH12
AH14
AH15
AH18
AH19
AH21
AH22
AH25
AH26
AH27
AH28
AH29
AH30
AH8
AH9
AJ11
AJ12
AJ14
AJ15
AJ18
AJ19
AJ21
AJ22
AJ25
AJ26
AJ8
AJ9
AK11
AK12
AK14
AK15
AK18
AK19
AK21
AK22
AK25
AK26
AK8
AK9
AL11
AL12
AL14
AL15
AL18
AL19
AL21
AL22
AL25
AL26
AL29
AL30
AL8
AL9
AM11
AM12
AM14
AM15
AM18
AM19
AM21
AM22
AM25
AM26
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
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
V_CORE
HA#20
C386
0.1UF
V_CORE
ADS#
HD#56
DEFER#
HDSTBP#3
HA#29
HD#5
R677
20
HD#42
HDSTBP#3
6
VTT_OL
3
HD#51
HD#0
HTRDY#
6
HDB#1
Z0214
HADSTB#0
6
VTT_OR
HD#44
C368
22UF/6.3V
RS#1
C373
22UF/6.3V
TESTHI10
C364
22UF/6.3V
HD#21
HD#25
HD#4
Z0209
C349
33PF
VTT1.2V
3,5,6,14,29
HD#49
HD#37
HD#53
C351
22UF/6.3V
HDB#0
6
TESTHI9
R684
49.9_1%
HD#[16..31]
6
HREQ#2
6
HA#21
HA#[3..16]
6
HA#9
HA#18
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