Diese Präsentation wurde erfolgreich gemeldet.
Wir verwenden Ihre LinkedIn Profilangaben und Informationen zu Ihren Aktivitäten, um Anzeigen zu personalisieren und Ihnen relevantere Inhalte anzuzeigen. Sie können Ihre Anzeigeneinstellungen jederzeit ändern.
Voltage
Sephiroth Kwon
GRMA
20-05-2009
OUTLINE
 Advanced Configuration and Power Interface
 Before Power On Voltage and Signal
– Power Supply and Stand By Volt...
Advanced Configuration
and
Power Interface
Advanced Configuration and Power Interface
S0: All Power
S3: Standby and Dual
S5: Only Standby
Before Power On
Voltage and Signal
Before Power On-Power Supply and Stand By Voltage
Unplug ATX Power Supply Plug-in ATX Power Supply
Before Power On-Power Supply and Stand By Voltage
PS-ON# is an active low signal that
turns on all of the main power rails...
Before Power On-Power Supply and Stand By Voltage
Linear
Regulator
+3VSB
Linear
Regulator
Linear
Regulator
+2.5VSB
+1.5VSB...
Before Power On-Power Supply and Stand By Voltage
+5VSB
PS_ON#
+12V,5V,3V
1. Before you turn on power 5VSB is always high!...
Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON#
South
Bridge
+3VSB GND
+5VSB
+3VSB
1.
2.
3.
3.
Super I/O
Power Button#Pow...
Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON#
South
Bridge
+3VSB GND
+5VSB
+3VSB
1.
2.
3.
3.
Super I/O
RSTCON#RSTCON#
R...
Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON#
• When 5VSB and 3VSB send to SIO and SB
• SIO will send this signal ‘’RSM...
Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3.3V *
3.3V *
COM
5V
C...
Before Power On-Battery Voltage
• Function of Battery Power are:
– CMOS SRAM
– Real Time Clock
Before Power On-Battery Voltage
First Pin
Before boot up the board, please check the jumper in normal status.
Before Power On-Battery Voltage
South Bridge
+
3VSB
Battery
RTCRST#
32.7 KHz
CLR
CMOS
1kohm
*Current Leakage measure:
Use ...
Before Power On-Battery Voltage
Use Multi-meter to measure
Current Leakage value
START
Check Vbatt related
Components I/O
...
Before Power On-Battery Voltage
1
1. Use multi-meter to measure 1k ohm
near the battery circuit, the value
between 1mV~10m...
Before Power On-Battery Voltage
3
3. If the value is still NG, check the
diode (RB715F) near battery is ok. If
NG, please ...
AFTER POWER ON VOLTAGE
After Power On-Voltage Distribution
CPU
Clock
Gen
Eagle lake
ICH10
Vcore
Batt
3VSB
3V
VTT_CPU
1.5V
1.1VSB
1.8VDUAL
1.1V_NB...
After Power On-Voltage Distribution
M4A79T DELUXE
After Power On-Linear & Switch Regulator introduction
1. Linear Regulator – Lower Cost and Higher heat.
e.g. LAN voltage, ...
After Power On-Linear & Switch Regulator introduction
• MOSFET
– N channel, Current high
– If G is hi, the voltage in D sh...
After Power On-Typical Linear Regulator
Linear Regulator
After Power On-Typical Linear Regulator
LM324 Diagrams Power Amplifier
Operational
Amplifiers
Reference
voltage
• IN+ = IN-, +1.5VSB REF (12th pin)= +1.5VSB FB (13th pin)
• If 13th pin (Feedback) were lower than 12th pin (Reference), ...
After Power On-Typical Switch Regulator
Switch Regulator
Switch Regulator
After Power On-Typical Switch Regulator
VCC
12 VIN
UGATE
PHASE
LGATE
PGND
GND
FB
I2
12Vin
Iout
t
t
t
t
I3
High side ON
Low...
After Power On-Typical Switch Regulator
High Gate
Low Gate
Controller
Input1.
2.
3.
4.
5.
6.
High side ON
Low side OFF
Hig...
VCORE
After Power On-VCORE architecture & circuit
Power Controller
Driver
Driver
CPUCPU VCORE
CONTROLLER
VCORE
CONTROLLER
VCORE
DRIVER
VCORE
DRIVER
VID PWM
VCORE
After Power On-VCORE architecture & circu...
After Power On-VCORE architecture & circuit
ControllerController
VCC
12 VIN
Driver
UGATE
PHASE
LGATE
PGND
GND
FB
High side...
VIDVID
PWMPWM
VCORE Control IC—ADP3180
After Power On-VCORE architecture & circuit
1
.
2
.
3
.
1.2V
1.2V
We should measure the
Controller EN pin 1.2V in
11th
at first time, if VCORE
no work!
Inside short
c...
CPUCPU
VID4
VID3
VID2
VID1
VID0
+5V
1K
10K
Switching
Regulator
Switching
Regulator
Vcore
0 (Low Level) : 0V
1 (High Level)...
ADP3180 Output Voltage V.S. VID code
After Power On-VCORE architecture & circuit
After Power On-VCORE Voltage repair Flow Chart 1
1.Impedance in 12V is <100
2.Impedance in VCORE is <50
3.Impedance from 1...
+ Point: Red Line PIN1(BST) PIN8(DRVH) PIN4(VCC) PIN5(DRVL) PIN2(DRVL) PIN3(DRVL)
- Point: Black Line PIN8(DRVH) PIN7(SW) ...
Mount good MOS and
Driver
Measure MOS &
Driver Impedance
are OK.
Other root cause like
soldering short.
NO
‧12V Impedance
...
After Power On-VCORE Problem Debug Procedure (1)
• If no Output
– Check if both 5V and 12V are OK
– Check if POWER MOSFET ...
• If the output voltage wrong
– Check if VIDs of Power Regulator are wrong setting
– Check if the feedback resistor divide...
Thank You!
Nächste SlideShare
Wird geladen in …5
×

tegangan pada motherboard

deskripsi pengecekan tegangan dan runutannya

  • Als Erste(r) kommentieren

tegangan pada motherboard

  1. 1. Voltage Sephiroth Kwon GRMA 20-05-2009
  2. 2. OUTLINE  Advanced Configuration and Power Interface  Before Power On Voltage and Signal – Power Supply and Stand By Voltage – Power button#, RSTCON#, RSMRST# – Battery Voltage  After Power On Voltage – Voltage Distribution • P5Q Deluxe • P5Q Pro Turbo • M4A79T Deluxe – Linear & Switch Regulator introduction • Voltage Solution - Linear &Switch Regulator • Typical Linear Regulator • Typical Switch Regulator – VCORE • VCORE architecture & circuit • VCORE Voltage repair Flow
  3. 3. Advanced Configuration and Power Interface
  4. 4. Advanced Configuration and Power Interface S0: All Power S3: Standby and Dual S5: Only Standby
  5. 5. Before Power On Voltage and Signal
  6. 6. Before Power On-Power Supply and Stand By Voltage Unplug ATX Power Supply Plug-in ATX Power Supply
  7. 7. Before Power On-Power Supply and Stand By Voltage PS-ON# is an active low signal that turns on all of the main power rails including 3.3V, 5V, -5V, 12V, and -12V power rails. 5VSB is a standby voltage that may be used to power circuits that require power input during the powered down state of the power rails. # GND GND GND GND GND GND GND
  8. 8. Before Power On-Power Supply and Stand By Voltage Linear Regulator +3VSB Linear Regulator Linear Regulator +2.5VSB +1.5VSB For LAN Voltage South Bridge Super I/O
  9. 9. Before Power On-Power Supply and Stand By Voltage +5VSB PS_ON# +12V,5V,3V 1. Before you turn on power 5VSB is always high! while you plug in the power supply which offers the standby voltage to some chipsets that can boot MB up! 2. PS_ON# must be touched off low to turn MB on ! 3. If PS_ON# were low, every voltages from power supply will operate!
  10. 10. Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON# South Bridge +3VSB GND +5VSB +3VSB 1. 2. 3. 3. Super I/O Power Button#Power Button# Before you boot up the board, you should measure the Power Button#. #, you must know this signal is acted by low, initially it is high.
  11. 11. Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON# South Bridge +3VSB GND +5VSB +3VSB 1. 2. 3. 3. Super I/O RSTCON#RSTCON# RSTCON# is high Initially. While you touch it off, it will reset all of the chipset.
  12. 12. Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON# • When 5VSB and 3VSB send to SIO and SB • SIO will send this signal ‘’RSMRST# ’’ to SB’s boot up circuit to notice the MB is ready to boot up! If this signal is Lo, you can’t boot up MB. • Do you know when RSMRST# is Lo? • The answer is unplug the ATX connector! South Bridge +5VSB +3VSB RSMRST# = Hi +5VSB
  13. 13. Before Power On-PWRBTN#, RSTCON#, RSMRST#,PS_ON# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 3.3V * 3.3V * COM 5V COM 5V COM PW-OK 5VSB 12V 3.3V * -12V COM PS-ON COM COM COM -5V 5V 5V * optional PS_ON Circuit Super IO( IT8282, W83667..) South Bridge SLP_S3# PS_ON# IO_PWRBTN# SLP_S4# # 1. 2. 3. 4. 5V 0V Power Button#
  14. 14. Before Power On-Battery Voltage • Function of Battery Power are: – CMOS SRAM – Real Time Clock
  15. 15. Before Power On-Battery Voltage First Pin Before boot up the board, please check the jumper in normal status.
  16. 16. Before Power On-Battery Voltage South Bridge + 3VSB Battery RTCRST# 32.7 KHz CLR CMOS 1kohm *Current Leakage measure: Use multi-meter to measure the 1kohm, the voltage value between 1mV~15mV is ok, out of this range is NG. According to Ohm theory: I=U/R, the Current leakage should be 1uA~10uA. Super I/O RTCRST# AB C When you plug in power supply, A=B When you unplug power supply, A=C
  17. 17. Before Power On-Battery Voltage Use Multi-meter to measure Current Leakage value START Check Vbatt related Components I/O The value is out of range Check Battery Power is 3V Change Battery, Measure the C.L. value is OK. Change I/O, Measure the C.L. value is OK Change SB Finished NG ok Check Diode RB715 is OK Change diode, Measure the C.L. value is OK NG NG NG ok ok ok ok ok ok ok
  18. 18. Before Power On-Battery Voltage 1 1. Use multi-meter to measure 1k ohm near the battery circuit, the value between 1mV~10mV is ok, out Of this range is NG. (According to Ohm theory: I=V/R, the Current leakage should be 1uA~10uA.) 2 2. If the value is NG, check the battery voltage is 3V. If not, change battery and measure the leakage current again.
  19. 19. Before Power On-Battery Voltage 3 3. If the value is still NG, check the diode (RB715F) near battery is ok. If NG, please try to change it and measure again. 4 4. If the value is still NG, check which component use Vbatt. Most MB Vbatt connect to SB, I/O and ASUS ASIC. We can strip up the Vbatt pin of I/O and ASIC to confirm which component is . 5. If it’s not I/O or ASIC problem finally please try to change SB.
  20. 20. AFTER POWER ON VOLTAGE
  21. 21. After Power On-Voltage Distribution CPU Clock Gen Eagle lake ICH10 Vcore Batt 3VSB 3V VTT_CPU 1.5V 1.1VSB 1.8VDUAL 1.1V_NB 3V 3V VTTCPU CPU_PLL AD2000B 3.3VA 3.3V 88SE6111 1.5V 3.3V 1.2V PCI SLOT 5V +/-12V 3VSB DDR II 1.8V VTTDDR PCIEX16 12V 3V 3VSB W83667DHG Batt 3VSB USB 3.3V 5VDUAL SPI3.3V FAN12V KB/MS5VDUAL Marvell 8056 1.8VSB 1.2VSB 3VSB PCIEx1 12V 3.3VSB 3.3V P5Q Deluxe Q-Switch 3.3V 1.8V
  22. 22. After Power On-Voltage Distribution M4A79T DELUXE
  23. 23. After Power On-Linear & Switch Regulator introduction 1. Linear Regulator – Lower Cost and Higher heat. e.g. LAN voltage, FAN. 2. Switch Regulator – Higher Cost and Lower heat. e.g. VCORE, Memory voltage. Switch Regulator Linear Regulator
  24. 24. After Power On-Linear & Switch Regulator introduction • MOSFET – N channel, Current high – If G is hi, the voltage in D should transfer to S. – P channel, Current low. – If G is lo, the voltage in S should transfer to D. Hi A B Lo AB
  25. 25. After Power On-Typical Linear Regulator Linear Regulator
  26. 26. After Power On-Typical Linear Regulator LM324 Diagrams Power Amplifier Operational Amplifiers Reference voltage
  27. 27. • IN+ = IN-, +1.5VSB REF (12th pin)= +1.5VSB FB (13th pin) • If 13th pin (Feedback) were lower than 12th pin (Reference), the 14th pin will make VG hi, meanwhile MOSFET is working till IN 4 - = IN4 +. Output Input 2. 1. 3. 4.5. 6. Hi After Power On-Typical Linear Regulator
  28. 28. After Power On-Typical Switch Regulator Switch Regulator Switch Regulator
  29. 29. After Power On-Typical Switch Regulator VCC 12 VIN UGATE PHASE LGATE PGND GND FB I2 12Vin Iout t t t t I3 High side ON Low side OFFI2 I3 Iout High side OFF Low side ON
  30. 30. After Power On-Typical Switch Regulator High Gate Low Gate Controller Input1. 2. 3. 4. 5. 6. High side ON Low side OFF High side OFF Low side ON
  31. 31. VCORE
  32. 32. After Power On-VCORE architecture & circuit Power Controller Driver Driver
  33. 33. CPUCPU VCORE CONTROLLER VCORE CONTROLLER VCORE DRIVER VCORE DRIVER VID PWM VCORE After Power On-VCORE architecture & circuit
  34. 34. After Power On-VCORE architecture & circuit ControllerController VCC 12 VIN Driver UGATE PHASE LGATE PGND GND FB High side ON Low side OFFI2 I3 Iout High side OFF Low side ON PWM 1 PWM 2 PWM 3 PWM 4 UGATE 1LGATE1 UGATE 1LGATE1 UGATE 1LGATE1 UGATE 1LGATE1 PWM
  35. 35. VIDVID PWMPWM VCORE Control IC—ADP3180 After Power On-VCORE architecture & circuit
  36. 36. 1 . 2 . 3 . 1.2V 1.2V We should measure the Controller EN pin 1.2V in 11th at first time, if VCORE no work! Inside short circuit 12V After Power On-VCORE architecture & circuit
  37. 37. CPUCPU VID4 VID3 VID2 VID1 VID0 +5V 1K 10K Switching Regulator Switching Regulator Vcore 0 (Low Level) : 0V 1 (High Level) : 5V After Power On-VCORE architecture & circuit
  38. 38. ADP3180 Output Voltage V.S. VID code After Power On-VCORE architecture & circuit
  39. 39. After Power On-VCORE Voltage repair Flow Chart 1 1.Impedance in 12V is <100 2.Impedance in VCORE is <50 3.Impedance from 12V to VCORE is <100 START ‧12V Impedance ‧Vcore Impedance ‧12V to Vcore Impedance No short? Boot up Check Vcore OK? All wave OK? END Yes NO Check whether boot after repairing? Other Circuit fail: Example: PWM IC fail, RC small component or soldering fail. Check Power Supply work OK? Yes NO Check PWM IC EN PIN 1.25V OK? Yes Other Circuit fail: Example: Socket fail 1.25VTT_CPU failNO NO Yes NO
  40. 40. + Point: Red Line PIN1(BST) PIN8(DRVH) PIN4(VCC) PIN5(DRVL) PIN2(DRVL) PIN3(DRVL) - Point: Black Line PIN8(DRVH) PIN7(SW) PIN5(DRVL) PIN6(PGND) PIN6(PGND) PIN6(PGND) Impedance >1M 8.2K(10%) > 300K 8.2K(10%) > 100K > 50K Turn off Power Supply Remove Power Supply cable Check MOS DGS is OK? NO Remove all abnormal MOS which DGS is NG. Yes Check Driver Impedance is OK? NO Remove Driver Yes After Power On-VCORE Voltage repair Flow Chart 12
  41. 41. Mount good MOS and Driver Measure MOS & Driver Impedance are OK. Other root cause like soldering short. NO ‧12V Impedance ‧Vcore Impedance ‧12V to Vcore impedance are all OK. Other rootcause like Socket short or Soldering short. NO Yes Measure MOS component which was just removed. Then record the defect MOS & Driver. Measure the Pad which MOS & Driver just been removed is OK? Other Circuit fail: Example: PWM IC fail, RC small component or soldering fail. NO Yes After Power On-VCORE Voltage repair Flow Chart 12
  42. 42. After Power On-VCORE Problem Debug Procedure (1) • If no Output – Check if both 5V and 12V are OK – Check if POWER MOSFET (both UGATE/ LGATE) are not short – Check all VIDs of Power Regulator are not high – Check EN/FS of Power Regulator is not zero Volt
  43. 43. • If the output voltage wrong – Check if VIDs of Power Regulator are wrong setting – Check if the feedback resistor divider is wrong – Check if UGATE and LGATE of Power Regulator with wrong voltage level – Check if POWER MOSFET failure After Power On-VCORE Problem Debug Procedure (2)
  44. 44. Thank You!

×