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5 4 3 2 1
Model Name: GA-8VM800M-775
Revision :1.0
D SHEET TITLE D
1 BOM & PCB MODIFY HISTORY
2 COVER SHEET
3 BLOCK DIAGRAM
4,5,6,7 INTEL P4_LGA775 CPU
8,9,10,11 P4M800 (NORTH BRIDGE)
12 CLOCK GENERATOR (RTM 862520)
13,14,15 VT8237R/CD (SOUTH BIRDGE)
C C
16,17 DDR SDRAM DIMMS 1,2 DDR TERMINATION
18 AGP SLOT
19 PCI SLOT 1,2,3
20 BIOS , VGA Connect
21 IDE,USB
22 LPC I/O_W83627EHF
23 COM,PRT,FDD,KB/MS,IR
24 AC 97 CODEC
B B
25 AUDIO JACK,GAME PORT
26 PANEL,STR LED,FANS
27 LAN 8100C & USB CONNECTOR
28 DDR POWER
29 ATX CONN,3VDUAL,VDDQ DC POWER
30 VCORE PHASE PWM FAIRCHILD ISL6556B
COMPONENT SIDE
(1 oz. Copper)
GND SIDE
(1 oz. Copper)
VCC SIDE
A A
(1 oz. Copper)
SOLDER SIDE
(1 oz. Copper)
GIGABYTE
Title
COVER SHEET
Size Document Number Rev
Custom 1.0
GA-8VM800M-775
Date: Tuesday, August 16, 2005 Sheet 1 of 30
5 4 3 2 1
5 4 3 2 1
Model Name: GA-8VM800M-775
Circuit or PCB layout change for next version
Version:1.0 Date Change Item Reason
D 2005/05/30 0.1 GERBER OUT. D
2005/07/06 1.0 GERBER OUT.
Component value change history
2005/06/29
Date Change Item Reason
2005/05/30 New Schematic Modify from 9M8VPMT-CH1-10D
NEW BOM 0.1 RELEASE
2005/07/11 BOM 1.0A RELEASE
2005/08/10 BOM 1.0B RELEASE Add PWR_LED ,Package
2005/08/15 BOM 1.0C RELEASE Improve Loadline
C C
B B
A A
GIGABYTE
Title
BOM & PCB MODIFY HISTORY
Size Document Number Rev
Custom 1.0
GA-8VM800M-775
Date: Tuesday, August 16, 2005 Sheet 2 of 30
5 4 3 2 1
5 4 3 2 1
GA-8VM800M-775 BLOCK DIAGRAM
D
INTEL 775 SOCKET PWM/OTHER POWER D
VID0~4
VCORE = 1.75V (650-1100MHZ) / SLEEP : 1.3V
5VSB,-12V,+12V,VCC,VCC3,3VDUAL
DDRVTT,DDR25V,3VSTR,VCC25 PAGE 28,29,30
CLOCK GEN
VCORE = 1.75V (650-1100MHZ) / SLEEP : 1.3V
VCC25 = 2.5V(I/O,MEMORY/I,VLINK/I) VCCA = 2.5V ; 2_5V = 2.5V PAGE 4,5,6,7
VCC3 = 3.3V PAGE 12
MAA0~15
VIA P4M800 NORTH BRIDGE MDD0~63
-DQSD0~7
DDR SDRAM DIMM X 2
DQM0~7
DDR25V = 2.5V(SUSPEND POWER)
DDRVTT = 1.25V
PAGE 16,17
C
AGP SLOT 4X/8X C
VDDQ = 1.5V (AGP POWER 4X)
VCC3 = 3.3V VCORE = 1.75V (650-1100MHZ) / SLEEP : 1.3V
+12V = 12V DDR25V = 2.5V(SUSPEND POWER)
3VDUAL = 3.3V VDDQ = 1.5V (AGP POWER 4X)
VCC = 5V PAGE 18 VCC25 = 2.5V(I/O,MEMORY/I,VLINK/I)
PAGE 8,9,10,11
VLAD0~7
CONTROL BUS V LINK
USB CON
PAGE 21
USB PORTS 0~5 VIA VT8237R SOUTH BRIDGE
VCC = 5V
5VSB = 5V
IDE Primary and Secondary
5VUSB = 5V PAGE 21
B VCC = 5V PAGE 21 B
VCC25 = 2.5V(I/O,MEMORY/I,VLINK/I)
3VDUAL = 3.3V(SUSPEND POWER)
VCC3 = 3.3V
AC97 CODEC ALC 655 "D" RTCVDD = 3.3V
PAGE 13,14,15
+12V = 12V
VCC3 = 3.3V
VCC = 5V
AVDD = 5V PAGE 24 PCI BUS
LPC BUS BIOS & VGA
VCC = 5V
PAGE 20
VCC3 = 3V
PCI SLOT 1,2,3
AUDIO PORTS :
+12 = 12V
-12 = -12V
VCC = 5V
LPC I/O W83627EHF
VCC3 = 3V VCC = 5V 5VSB = 5V VBAT = 3V PAGE 22
3VDUAL = 3V PAGE 19 IR
LIN_OUT LINE_IN MIC FRONT AUDIO
CD_IN AUX_IN GAME PORT
PAGE 25
A
LAN 8100C I/O PORTS : A
VDDTXRX = 3.3V
VDDC = 3.3V COMA COMB LPT PS2 FDD PAGE 23
PAGE 27 PCI BUS
GIGABYTE
FRONT PANEL /FANS
VCC = 5V 5VSB = 5V
Title
BLOCK DIAGRAM
+12 = 12V PVCC = 5V PAGE 26
Size Document Number Rev
Custom 1.0
GA-8VM800M-775
Date: Tuesday, August 16, 2005 Sheet 3 of 30
5 4 3 2 1
5 4 3 2 1
Closed to
Pin-H1
COUPON2 COUPON1 1 2 COUPON/X VCC
R2 49.9/6/1 GTLREF
VTT_OR
D COUPON1 COUPON2 1 2 COUPON/X D
BC10 R3 C2 C5
0.01u/6/X7R/50V/K 100/6/1 1u/6/Y5V/10V/Z 220p/4/NPO/50V/J
Closed to Pin-H2
R31 49.9/6/1/X GTLREF1
VTT_OR
R29 C22 C21
LGA775A 100/6/1/X 1U/6/Y/10V/X 220P/4/N/25V/X
HA[3..16]
8 HA[3..16]
HA3 L5 D2 -HADS
A03# ADS# -HADS 8
HA4 P6 C2 -BNR
A04# BNR# -BNR 8
HA5 M5 D4 -HIT
A05# HIT# -HIT 8
HA6 L4 H4
HA7 A06# RSP# -BPRI
M4 A07# BPRI# G8 -BPRI 8
HA8 R4 B2 -DBSY
A08# DBSY# -DBSY 8
HA9 T5 C1 -DRDY
A09# DRDY# -DRDY 8
HA10 U6 E4 -HITM
A10# HITM# -HITM 8
HA11 T4 AB2 -IERR
HA12 A11# IERR# -HINIT
U5 A12# INIT# P3 -HINIT 6,15
HA13 U4 C3 -HLOCK
A13# LOCK# -HLOCK 8
HA14 V5 E3 -HTRDY
A14# TRDY# -HTRDY 8
HA15 V4 AD3 C3
HA16 A15# BINIT# -DEFER 22p/4/NPO/50V/J
W5 A16# DEFER# G7 -DEFER 8
C N4 F2 -EDRDY C
RSVD EDRDY# TP33
P5 RSVD MCERR# AB3
-HREQ0 K4
8 -HREQ0 REQ0# VTT_OL
-HREQ1 J5 U2 AP0 8
8 -HREQ1 REQ1# AP0#
-HREQ2 M6 U3 AP1 8
8 -HREQ2 REQ2# AP1#
-HREQ3 K6
8 -HREQ3 REQ3#
-HREQ4 J6 F3 -BR0 RN9
8 -HREQ4 REQ4# BR0# -BR0 8
-HADSTB0 R6 G3 TESTHI8 7 8
8 -HADSTB0 ADSTB0# TESTHI08 TESTHI8 6
-HPCREQ G5 G4 TESTHI9 -BR0 5 6
TP34 PCREQ# TESTHI09 TESTHI9 6
HA[17..33] H5 TESTHI10 -EDRDY 3 4
8 HA[17..33] TESTHI10 TESTHI10 6
HA17 AB6 -HPCREQ 1 2
HA18 A17#
W6 A18# DP0# J16
HA19 Y6 H15 62/8P4R/6
HA20 A19# DP1#
Y4 A20# DP2# H16
HA21 AA4 J17
HA22 A21# DP3# GTLREF1 R55 0/6
AD6 A22# GTLREF1 H2
HA23 AA5 H1 GTLREF
HA24 A23# GTLREF0
AB5 A24#
HA25 AC5 G23 -CPURST R4 62/6 -IERR
A25# RESET# CPURST- 8,28,29 VTT_OL
HA26 AB4
HA27 A26# -RS0 R6 62/6 CPURST-
AF5 A27# RS0# B3 -RS0 8 VTT_OL
HA28 AF4 F5 -RS1 C4
A28# RS1# -RS1 8
HA29 AG6 A3 -RS2 22p/4/NPO/50V/J
A29# RS2# -RS2 8
HA30 AG4
VCORE HA31 A30#
AG5 A31#
HA32 AH4
HA33 A32#
AH5 A33#
AJ5 A34#
AJ6 A35#
C426 C427 C428 C429 AC4
10u/8/X5R/6.3V/M
0.1u/6/Y5V/25V/Z 0.1u/6/Y5V/25V/Z 0.1u/6/Y5V/25V/Z RSVD
AE4 RSVD
B -HADSTB1 B
8 -HADSTB1 AD5 ADSTB1#
CR55
CPU-SK/775/[10SC1-D03775-01_10SC1-D03775-02_10SC1-D03775-03] CPU RETAINTION/X
VCORE SP-CAP X 4PCS
100U/2V/SPCAP 10U/12/X/6.3V X2
+
+
+
+
EC10 EC11 EC12 EC13
100U/2V/SPCAP/X 100U/2V/SPCAP/X 100U/2V/SPCAP/X 100U/2V/SPCAP/X
EC12
BC5/6
VCORE
+
EC10 +
BC2 BC3 BC4 BC5 BC6 BC8/7
10u/12/X5R/6.3V/M 10u/12/X5R/6.3V/M 10u/12/X5R/6.3V/M
10u/12/X5R/6.3V/M 10u/12/X5R/6.3V/M
-
A EC13 A
BC3/4
VCORE
+ 100U/2V/SPCAP
+ GIGABYTE
BC7 BC8 BC9 10U/12/X/6.3V X2 EC11 Title
10u/12/X5R/6.3V/M 10u/12/X5R/6.3V/M
BC2/9 P4_LGA775-A
10u/12/X5R/6.3V/M
Size Document Number Rev
Custom GA-8VM800M-775 1.0
Date: Tuesday, August 16, 2005 Sheet 4 of 30
5 4 3 2 1
5 4 3 2 1
D D
LGA775B
HD[0..15]
8 HD[0..15] HD[32..47] 8
HD0 B4 G16 HD32
HD1 D00# D32# HD33
C5 D01# D33# E15
HD2 A4 E16 HD34
HD3 D02# D34# HD35
C6 D03# D35# G18
HD4 A5 G17 HD36
HD5 D04# D36# HD37
B6 D05# D37# F17
HD6 B7 F18 HD38
HD7 D06# D38# HD39
A7 D07# D39# E18
HD8 A10 E19 HD40
HD9 D08# D40# HD41
A11 D09# D41# F20
C HD10 B10 E21 HD42 C
HD11 D10# D42# HD43
C11 D11# D43# F21
HD12 D8 G21 HD44
HD13 D12# D44# HD45
B12 D13# D45# E22
HD14 C12 D22 HD46
HD15 D14# D46# HD47
D11 D15# D47# G22
-DBI0 A8 D19 -DBI2
8 -DBI0 DBI0# DBI2# -DBI2 8
STBN0 C8 G20 STBN2
8 STBN0 DSTBN0# DSTBN2# STBN2 8
STBP0 B9 G19 STBP2
8 STBP0 DSTBP0 DSTBP2 STBP2 8
HD[16..31]
8 HD[16..31] HD[48..63] 8
HD16 G9 D20 HD48
HD17 D16# D48# HD49
F8 D17# D49# D17
HD18 F9 A14 HD50
HD19 D18# D50# HD51
E9 D19# D51# C15
HD20 D7 C14 HD52
HD21 D20# D52# HD53
E10 D21# D53# B15
HD22 D10 C18 HD54
HD23 D22# D54# HD55
F11 D23# D55# B16
HD24 F12 A17 HD56
HD25 D24# D56# HD57
D13 D25# D57# B18
HD26 E13 C21 HD58
HD27 D26# D58# HD59
G13 D27# D59# B21
HD28 F14 B19 HD60
HD29 D28# D60# HD61
G14 D29# D61# A19
HD30 F15 A22 HD62
HD31 D30# D62# HD63
G15 D31# D63# B22
-DBI1 G11 C20 -DBI3
8 -DBI1 DBI1# DBI3# -DBI3 8
STBN1 G12 A16 STBN3
8 STBN1 DSTBN1# DSTBN3# STBN3 8
STBP1 E12 C17 STBP3
8 STBP1 DSTBP1 DSTBP3 STBP3 8
B B
CPU-SK/775/[10SC1-D03775-01_10SC1-D03775-02_10SC1-D03775-03]
A A
GIGABYTE
Title
P4_LGA775-B
Size Document Number Rev
Custom GA-8VM800M-775 1.0
Date: Tuesday, August 16, 2005 Sheet 5 of 30
5 4 3 2 1
5 4 3 2 1
R12 110/6/1 TESTHI0
VCC3
Place outside of CPU socket
Note: R13
61.9/6/1 C8 COMP2 R60 60.4/6/1
VCCA & VCOREPLL 0.1u/4/Y5V/16V/Z COMP3 R59 60.4/6/1
define doesn't same as R36 60.4/6/1 COMP0
VTT_GMCH old P4 design kit R37 60.4/6/1 COMP1
L2
VCCA R14 249/6/1
VCC3
3
10uH/8/100mA/0.50/S R63 60.4/6/1 COMP4
VTT_OL
R62 60.4/6/1 COMP5
C6 BC11 R9 D Q2
D D
1u/6/Y5V/10V/Z 4.7u/8/Y5V/10V/Z 0/SHT/X 2N7002/SOT23 C52
G S 0.1u/6/Y5V/25V/Z
VSSA SOT23 TESTHI0
Trace width doesn't 8 GTL_DET
2
1
less than 12 Mil R65 60.4/6/1 COMP6
VTT_OR
C7 BC12 R64 60.4/6/1 COMP7
L3 1u/6/Y5V/10V/Z 4.7u/8/Y5V/10V/Z
VCOREPLL C53
10uH/8/100mA/0.50/S LGA775C 0.1u/6/Y5V/25V/Z
As close as possible to
CPU socket -SMI P2 F26 TESTHI0
15 -SMI SMI# TESTHI00
-A20M K3 W3 TESTHI1 RN6
15 -A20M A20M#