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INTEL@G41 series
TROUBLE SHOOTING GUIDE
M/B 7563-0A VERSION:1.0
BIOS VERSION:A7563
ROHS
Reviser Skyfeng
date 2008-11-18
ver. 1.0
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Agenda
1. Introduce main IC
2. Block Diagram
3. Power Map
4. Clock Map
5. Power on sequence (G3~S0)
6. Main power spec and transfer circuit
7. ACPI global system power state
8. Repair process
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Introduce main IC
1. CPU
Supports FSB 1333/1066/800MHZ
Support Intel@EIST save power technology
Support Intel@HYPER-THREADING technology
2. NORTH BRDIGE(G41)
Supports 800/1066/1333 MT/s(200/266/333MHZ) front
side bus
Supports FSB Dynamic Bus Inversion
Supports system states:S0,S1,S2,S3,S5
Supports memory data transfer rates of 667 and
800MHZ for DDR2 & 800/1066MHZ for DDR3
3. SOUTH BRDIGE(ICH7)
Supports four SATA ports and supports data transfer rates of
up to 3.0GB/S
Support of multi-channel 32-bit sample depth and sample
rate up to 192kHZ
Support ACPI 3.0
Support the standard universal host controller interface,
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support eight USB ports
4. CLOCK CHIP(RTM87T-605)
Integrated serial damper resistor on all differential clocks
CPU frequency supports up to 400MHZ
Programmable PLL frequency
5. I/O(F71882FG)
Provides one FDC, two UARTS,KBC and parallel port
24/48 MHZ clock input
Compatible with IBM PC AT disk drive systems
Support AMD SID/SIC interface and INTEL PECI/SST interface
6. LAN CHIP(RTL8111DL)
Integrated 10/100/1000 transceiver
Supports PCI ExpressTM 1.1
Supports Full Duplex flow control(IEEE802.3x)
7. AUDIO CHIP(ALC888)
All DACs support 44.1K/48K/96K/192KHZ sample rate
All ADCs support 44.1K/48K/96KHZ sample rate
Supports digital microphone interface to improve voice
quality
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8. VRM CHIP(UP6206)
Programmable dynamic power saving mode operation
Simple single-loop voltage-mode control
Adjustable operation frequency from 50kHZ to 1MHZ per
phase
Selectable 3/4 phase operation
9. PWM THREE PHASE POWER SUPPLY
PHASE1 CHOKE3+Q31(HIGH)+Q29&Q28(LOW)
PHASE2 CHOKE2+Q21(HIGH)+Q18&Q19(LOW)
PHASE3 CHOKE1+Q12(HIGH)+Q10&Q9(LOW)
10. MEMORY (DDR II)
Support 240-pin/1.8V DDR2 DIMM memory socket
Support double signal channels DDR2 800/677 memory
Support most memory capability up to 4GB
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BLOCK DIGRAM
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POWER MAP
5VSB
3.3V
+5V
+12V
UP7706U8
U
3VSB
ICH7
LAN
IO
PCI
PCIE
W83310D
G
5VDIMM
UP6103SB
VT
TD
DR
VC
CD
DR
L
M358D
R2G
V1P
5C
OR
E
LM
358D
R2G
UP
7707M
5
V1P
5M
CH
G31
ICH
7
V1P05CORE
V1P25CORE
DD
RII
VFSBVTT
CP
U
VR
M
VC
CP
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CLOCK MAP
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Power on sequence
RT
M8
76-
66
5
CPU
G31
ICH7
CPUCLK
CK_H_MCH
CK_DOT96 96MHZ
CK_PE_100M_MCH
CK_ICHSATA
CK_PE_100M_ICH
CK_48M_USB_ICH 48MHZ
ICH_PCLK
CK_14M_ICH
SIO
CK_48M_SIO 48MHZ
CK_P_33M_SIO 33MHZ
TPM TPMP_CLK 33MHZ
RTL8111C
CK_PE_100M_GLAN
PCI
PCIE
PCI_CLK0 33MHZ
CK_PE_100M_16PORT#
AL
C888
AC_BITCL
K 24MHZ
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1. 3VSB spec: 3.135~3.465V
Transformed from UP7706U8 at S5
2. 5VDIMM spec:4.75~5.25V
5VSBDRV1 by UP7501M8 is transformed from 5VSB at S5 and 5VDR1 by
UP7501M8 is transformed from VCC5 at S0.
3.VCC_DDR spec:1.805~1.995V
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UG by UP6103S8 is transformed from 5VDIMM at S0 & S3.
4.VTT_DDR spec:0.902~0.995V
Transformed from W83310DG at S0 & S3.
5.V_FSB_VTT spec:1.14~1.26V
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Control by LM358DR2G transformed from VCC_DDR at S0.
6.V_1P5_CORE spec:1.425~1.57V
Control by LM358DR2G transformed from VCC_DDR at S0.
7.V_1P5_MCH spec:1.415~1.55V
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Transformed from UP7707M5 at S0.
8. V_1P05_CORE spec:0.975~1.125 V
Control by LM358DR2G transformed from V_1P5_CORE at S0.
9. V_1P25_CORE spec:1.1875-1.3125V
Control by LM358DR2G transformed from V_1P5_CORE at S0.
ACPI Global System Power State
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★G3: Mechanical off. In this state, power supplies on computer have been removed,
but battery.
★S5: Soft off state. In this state, there is standby power, and the system can be
wakening back to the working state, after which the computer will reset
completely.
★S4: Sleeping state. The S4 sleeping state is the lowest power, longest wake latency
sleeping state supported by ACPI. In order to reduce power to a minimum, it
is assumed that the hardware platform has powered off all devices. Platform
context is maintained
★S3: The S3 sleeping state is a low wake latency sleeping state where all system
contexts are lost except system memory. CPU, cache, and chip set context are
lost in this state. Hardware maintains memory context and restores some
CPU and L2 configuration context. Control starts from the processor’s reset
vector after the wake event.
★S2: The S2 sleeping state is a low wake latency sleeping state. This state is similar
to the S1 sleeping state except that the CPU and system cache context is lost
(the OS is responsible for maintaining the caches and CPU context). Control
starts from the processor’s reset vector after the wake event.
★S1: The S1 sleeping state is a low wake latency sleeping state. In this state, no
system context is lost (CPU or chip set) and hardware maintains all system
contexts CPU.
★S0: The S0 state is the system working state.
G3 -Mech
Off
Legacy
W ake
Event
G0 (S0) -
Working
G1 -
Sleeping
S4
S3S2
S1
Pow er
Failure
G2 (S5) -
Soft Off
BIOS
Routine
C0
D0
D1D2
D3Modem
D0
D1D2
D3HDD
D0
D1D2
D3CDROM
C2
C1
Cn
Performance
State PxThrottling
C0
CPU
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Repair process
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First compare
client with RMA
test result .
Y
N
Re-test for
re-produce
client result
Y
Visual inspection,check the CMOS JBAT lose or turn
over,check PCB fail with short,open .notice component
void solder,burn missing or wrong. Notice the problem
of IC missing or void solder. EL-capacitor destroyed
(e.g.bump.relex.exe)
To repair
directly
Y
Measure the vcore12V without power
and cpu on by multimeter
Detect and to see the main voltage if
short to the ground
N
Y Find out the reason then try
to solve it
Assemble cpu,fan memory debug
card and so on,press power
button to see the MB and the fan
if work well,also the code
showed on debug code
1. if the board no action after press the
button(the error code is M01in card)the
debug card will not have been shown and the
fan will not running . check the
following :
(1)check the 3.3V in JFP1 pin8(this
voltage is supplied by vcc_sb),if this
is no problem .Check the circuit
from pin8 of JFP1 to the pin80 of
SIO.
(2) check the CMOS jumper-JBAT1 if
correct.
(3)check the crystal Y5(32.768K)if can
generate check RSMRST# from SB, if
not, check the voltage of pin85(SIO)
is normal, and the relevant circuit
has broken or not.
N
Repair with
RMA test
result
N
N
Y
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NO boot (NO
display)
Show F, show F means the voltage abnormity,
check the main voltage of CPU, SB, NB and
other IC. Notice the voltage transfer from
UPI weather normally.
(1)check the 4pin of power connector plugs
in effect or not
(2)if no 5VSB,check the ATX POWER,if 5VSB
in existence, but no 3VSB,check the
voltage of Drive from U19(UP7706U8) ok or
not.
Show FF
(1) Try to press the bridge first,seeing if
can finish running.
(2) try to use bios bootable card (TL399
card),if can boot reflash bios,or change the
bios.
(3)check the starts of signal with measure
power on sequence,refer to power on
sequence.
(4)Check the clock frequency from
CLKGENERATE to CPU, NB, SB. (every
frequency size refer to CLKMAP)
(5)Measure the grounding diode between CPU
and NB contrast with OK board to estimate
NB open or PCB fail with open.
Y
N
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1. if on board VGA display abnormal:check
the signal of VGA_RED,VGA_GREEN,
VGA_BLUE,check the signal VSYNC,
HSYNC,5VDDCCL,5VDDCDA whether
normal,check the circuit between these
signal with VGA connector short or open.
2. if on board VGA display normal,but PCIE
VGA display abnormal,check the signal of
SMBCLK,SMBDATA,PLTRST_BU1
whether normal and the frequency of
CK_PE_100M_16PORT whether100MHZ,
check the capacitor near by PCIE slot
whether normal,check the circuit of PCIE
slot connect with NB short or open?
VGA display
normal ?
(including show
blue screen ,black
screen and display
noise)
1. Check mouse and keyboard insert wrong
location.
2. check the signal of KBRST# and
A20GATE(IO sent to SB) is OK?
3. check the signal of MSCLK,KBCLK,
MSDATA,KBDATA connect 5V voltage is
OK? Check the frequency of MSCLK,
KBCLK whether normal.
4. check the PS2 connector is OK?
PS2 mouse and
keyboard is ok?
USB is OK?
N
Y
N
1. check the voltage of USB_RSTR 5V whether
normal,this voltage control by SB transfer
from UP7533AM8,if abnormal check the
signal of USB_OCP# and USB_EN from SB
whether normal.
2. check the ESD protect component D15,
D16,D21,D22 bowl over or not.
3. Check the signal of USBP/N from SB
whether normal.
Y
N
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1. check the signal of PLTRST_BU3# sent by IO
is OK?
2. Measure the grounding diode between IDE
slot and SB check the PDD[0..7],PDD[8..15]
short or open?
3. check the signal of PD_DREQ, PD_IOW#,
PD_IOR# whether normal.
IDE is OK? N
Y
Audio test
pass?
1. check the audio chipset input voltage
5V,3V is ok?
2. check the VREF(PIN27) voltage (2.5V)
is ok?
3. check the signal of AC_RST from SB
whether normal,check the extent range
scope is 3.3V?
4. check the frequency of
AC_SYNC(48KHZ) from SB is ok?
5. check the frequency of AC_BITCLK
from SB (measured after OS,24MHZ)is
ok?
6. check the signal of AC_SDOUT,
AC_SDIN0 whether normal.
N
Y
1. check the crystal of LAN if abnormal,check
the voltage supplied by LAN chip
whether normal to estimate crystal fail or
LAN chip fail?
2. check voltage of 3.3V,1.8V,1.5V
whether normal.
3. check the frequency of
CK_PE_100M_GLAN_DN/P is
100MHZ?
4. Check the signal of PLTRST_BU2# from
IO to LAN chip whether normal.
5. use multimeter measure the grounding
diode to estimate the connector
fail?
LAN function
is OK?
Y
N
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1. Whether CMOS setting is right, whether
ACPI is open, whether all drivers have
been installed, update drivers, update
BIOS.
2. see SLP_S3# whether can work,check the
signal of SLP_S3# whether pull down
absolutely after sleep.
Can standby
or not ?
Y
N
Can be wake
up or not?
Can not wake up include these things:
1. Can standby but unable to wake up
2. No display or hang up after wake up
Can standby but unable to wake up
(1)whether to open the waking function in
the CMOS setting .
(2)Update BIOS.
(3) check SLP_S3#,SLP_S5# is ok?
voltage drop or rise abnormal.
(4) compare with ok MB observer IO
PSOUT have a right action when
wake up,if not consult whether
BIOS setup of PSOUT#(GPIO27) it
is right,update bios.
No display or hang up after wake
up:
Check if some voltage is not
stable or change the error
information when the S3 is
waking up. Then may be something
happen in update BIOS,MB and VGA
card driver.
N
Y
ALL OK
Y
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