Service manual

Schematic Diagrams
B - 4 Northwood - 2 of 2 (71-P2970-002A)
B.Schematic Diagrams
Northwood - 2 of 2
Sheet 3 of 28
Northwood 2 of 2
V_CORE
V_CORE
V_CORE
V_CORE
+3V
VCCVID
+3V
SB5V
+3V
VCCVID
+3V CPURST#
BR0#
Z0305
Z0308
Z0310
Z0309
DBR#
FERR#
Z0304
VID0
HD#29 HD#17 HD#47 HD#36 HD#40 HD#38 HD#19 HD#42 HD#22 HD#11 HD#30 HD#16 HD#63 HD#37 HD#13 HD#12 HD#20 HD#18 HD#62 HD#46
HD#6
HD#57 HD#56 HD#51 HD#60 HD#52 HD#25
HD#9
HD#49 HD#39 HD#50 HD#41 HD#33
HD#7
HD#59 HD#35
HD#1
HD#34
HD#0
HD#58 HD#21 HD#48 HD#45 HD#28 HD#10 HD#14
HD#8
HD#61 HD#53 HD#31 HD#24
HD#4 HD#2
HD#27 HD#32 HD#26 HD#15 HD#43 HD#23
HD#5 HD#3
HD#44 HD#55 HD#54
HD#[0..63]
HA#21 HA#12 HA#7 HA#28 HA#25 HA#17 HA#14 HA#9 HA#29 HA#16 HA#26 HA#15 HA#22 HA#13 HA#5 HA#4 HA#3 HA#23 HA#11 HA#27 HA#20 HA#18 HA#24 HA#8 HA#6 HA#30 HA#10 HA#31 HA#19
HA#[3..31]
Z0302
VID4
VID1
CPURST#
CPUPWRGD
Z0306
Z0307
CPUPWRGD
THERMTRIP#
FERR#
BR0#
THERMDC
VID2
VID3
VID5
IERR#
IERR#
THERMDA
VID0
VID1
VID2
VID3
VID4
VID5
DBR#
HGTLREF
Z0301
Z0313
Z0312
Z0314
TZ0301
TZ0302
TZ0303
TZ0304
TZ0305
TZ0306 TZ0307 TZ0308 TZ0309 TZ0310 TZ0311 TZ0312 TZ0313 TZ0314 TZ0315 TZ0316
R108 300_1%
R107 62_1%
R341 200_1%
R422 62_1%
R342 51_1%
L10 10uH_+/-25_0805
L11 10uH_+/-25_0805
C75
3300p_R
PRESCOTT/NORTHWOOD INTERFACE
U5B
PRESCOTT/NORTHWOOD
P1
AF23
AF22
L24
AC3
V6
B6
Y4
AA3
W5
AB2
H5
H2
J6
G1
G4
H6
G2
F3
E3
D2
E2
D4
C1
F7
E6
D5
C3
B2
B5
C6
AB26
AB23
AB25
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 L25 K26 K25 J26
AC26
AD26
E5
D1
F20 AA21 F6 AA6 AF4 AE4 AE3 AE2 AE1 AE5
AE23
AD20
AD22
J1
K5
J4
J3
H3
F1
G5
F4E21
G25
P26
V21
AC1
V5
AD6
AD5
F21
J23
P23
W23
E22
K22
R22
W22
AE25
L5
R5
A2
B3
C4
AF3 AD3
COMP1
BCLK1
BCLK0
COMP0
IERR#
MCERR#
FERR#
STPCLK#
BINIT#
INIT#
RSP#
DBSY#
DRDY#
TRDY#
ADS#
LOCK#
BR0#
BNR#
HIT#
HITM#
BPRI#
DEFER#
TCK
TDI
TMS
TRST#
TDO
PROCHOT#
IGNNE#
SMI#
A20M#
SLP#
PWRGOOD
RESET#
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# DP3# DP2# DP1# DP0#
ITP_CLK0
ITP_CLK1
LINT1
LINT0
GTLREF0 GTLREF1 GTLREF2 GTLREF3 VCCVID VID1 VID2 VID3 VID4 VID0
VCCA
VCCIOPLL
VSSA
REQ0#
REQ1#
REQ2#
REQ3#
REQ4#
RS0#
RS1#
RS2#DB#0
DB#1
DB#2
DB#3
AP0#
AP1#
BSEL0
BSEL1
DSTBP0#
DSTBP1#
DSTBP2#
DSTBP3#
DSTBN0#
DSTBN1#
DSTBN2#
DSTBN3#
DBR#
ADSTB0#
ADSTB1#
THERMTRIP#
THERMDA
THERMDC
VCCVIDLB VID5
+
C83
22u/10V_1206
R116 150_R
CA89
0.1u
CB1
1u
R404 62_1%_R
U6
MIC5258
1
2
3
4
5
Vin
GND
EN
PG
Vout
R411
681_1%
Q36
2N7002
D
G
S
Q37
2N7002
D
G
S
Q7
2N7002
D
G
S
R110
10K
R410
1K
CA300
0.1u_R
CA94
0.1u
RN56 8P4R*1K
1
2
3
45
6
7
8
R408 1K
+
C82
22u/10V_1206
R111
10K
R405 1K
CA229
0.1u
C225
220p
R106
200_1%
R394
169_1%
R340 39.2_1%
R81 120_1%
R80 150_1%
R334 680_1%
R335 27.4_1%
R93 61.9_1%
R98 61.9_1%
SMI# [14]
HDSTBN#0[6]
HIT# [6]
IGNNE# [14]
BR0# [6]
DBSY# [6]
HADSTB#0[6]
HLOCK# [6]
HDB#0[6]
HDSTBN#2[6]
FERR# [14]
HDSTBP#0[6]
HADSTB#1[6]
DRDY# [6]
DEFER# [6]
HITM# [6]
CPUSLP# [14]
HDSTBP#3[6]
HDSTBP#2[6]
INIT# [14,21]
BNR# [6]
HDSTBN#1[6]
A20M# [14]
HDB#1[6]
BPRI# [6]
STPCLK# [14]
HDSTBN#3[6]
ADS# [6]
HTRDY# [6]
HDSTBP#1[6]
HD#[0..63][6]
HDB#2[6]
HDB#3[6]
HREQ#0[6]
HREQ#1[6]
HREQ#3[6]
HREQ#2[6]
HREQ#4[6]
VID4 [22,27]
ITPCLK [4]
ITPCLK# [4]
CPUCLK [4]
CPUCLK# [4]
CPURST# [6]
CPUPWRGD [14]
RS#0 [6]
RS#1 [6]
RS#2 [6]
INTR [14]
NMI [14]
V_CORE [2,4,14,22,27]
VID3 [22,27]
VID2 [22,27]
VID1 [22,27]
FSA[4]
THERMDC[16]
+3V [4,5,6,11,12,13,14,15,16,17,19,20,21,22,23,24,26,27,28]
FSB[4]
VID0 [22,27]
HA#[3..31] [6]
VID5 [27]
PROCHOT# [6]
THERMDA[16]
THERMTRIP#[14,16]
HGTLREF[6]
VID_PWRGD [2]
VRD_EN [27]
SUSB#[6,14,22]
CPU SIGNAL TERMINATION
CLOSE TO CPU
Max 1.5 inch 15mil
CLOSE CPU
CLOSE CPU