1 / 8

Power On Sequence

Power On Sequence. Sephiroth Kwon GRMA 26-05-2009. OUTLINE. General Power On Sequence Power On Sequence (P5Q3) Power On Sequence (M3N78-VM) No Power Problem Debug Point. General Power On Sequence. 3VSB. PWRBTN. 5VSB. 1. 1/0. 1. South Bridge. PWRBTN. 0. PSON#. ATX TOP VIEW.

giona
Download Presentation

Power On Sequence

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Power On Sequence Sephiroth Kwon GRMA 26-05-2009

  2. OUTLINE • General Power On Sequence • Power On Sequence (P5Q3) • Power On Sequence (M3N78-VM) • No Power Problem Debug Point

  3. General Power On Sequence 3VSB PWRBTN 5VSB 1 1/0 1 South Bridge PWRBTN 0 PSON# ATX TOP VIEW PANNEL + 5 5VSB to 3VSB Linear Reg. + 12 Cap./ Res. + 5 5VSB - 5 PWOK GND GND GND + 5 GND GND 0 + 5 PSON GND GND - 12V + 3V IT8282 + 3V + 3V PSON Pull low circuit Super I/O PSON 0

  4. General Power On Sequence + 5 + 12 PWRBTN + 5 5VSB - 5 PWOK GND GND GND + 5 GND GND + 5 PSON GND GND - 12V + 3V + 3V + 3V PANNEL CPU SOCKET (2) CPURST (5) PG1 IDERST Circuit IDE SLOT (4) PWROK PCIRST (3) PCI SLOT North Bridge Circuit PSON South Bridge (1)

  5. Power On Sequence (P5Q3 Sample) S_PLTRST S_PLTRST B_ATX_PWROK GMCH POWER SUPPLY O_PWROK_NB O_PWROK 10 USER PRESS CRTL+ATL+DEL O_PCIRST#_PCIEX16_12 O_PSON# H_CPURST# O_PCIRST#_PCIEX1_123 6 7 7 Super I/O 9 PCI_PCIEX16 O_PWRBTNIN# O_PCIRST#_SLOT USER PRESS POWER BTN 3 PCI_PCIEX1 9 2 5 5 4 7 P_VRM_GD O_PWROK O_RSMRST# O_PWRBTN O_KB_RST# S_SLPS3# S_SLPS4# PCI SLOT EPU 7 RSTCON# S_PCIRST# User press Rest button ICH10R S_TRCRST# TPM 8 JMB363 User clear CMOS VA6308P 1 S_PLTRST# 8 VCORE H_CPUPWRGD 8 CPU LAN

  6. Power On Sequence(M3N78-VM) 14. CPU_RST# 13. PCI_RST# CPU MCP78 PCI SLOT 1,2 12. CPU_PWROK# 13. PCIE_RST# 10. 1.2VHT_EN PCIE X1 9. VCORE_PG 8. VCORE_EN 7.PWROK_SB 11.SIO_RST# 3.SIO_PWRBTN# 4.SUSB# 4.SUSC# 1.RSMRST# VRM 6. 12V 6. 3V 6. 5V SIO ITE8712F PCIE X16 ATX Power 13.PCIERST# IDE Port 5. PSON# 11. IDE_RST# 2. PWR_BTN#

  7. No Power Problem Debug Point POWER UP PROBLEM • Check if any burned components or traces • Check no voltages short with GND such as +5, +12 , +5VSB, +3, -12, +3VSB, VCORE 1.5V, 2.5V • Check Battery voltage • Check X’tal 32.768 KHz • Check 5VSB ,3VSB, PWRBTN# • Check PSON signal & related circuit

  8. Thank You!

More Related