上电时序intel-amd]资料.pdf

上电时序 �主板电压概述 �主板上电时序 �Intel架构上电时序 �AMD架构上电时序 主板电压概述 主板电压概述 �ATX电源提供+12V、-12V、+5V、-5V 、+3V、+5VSB六种电压，其 它的则由主板上的DC-DC电路利用ATX提供的电压转换而来 DC- DC电路则可分为线性转换电路和PWM转换电路，主板上的 +5vsb?+3vsb就是典型的线性稳压电路，而vcore部分则是PWM技 术最基本的应用所谓的+3V_DUAL就是用+3v与+3vsb共同供电， 相互间用MOSFET或者二极管隔离 �主板的上的电压有+12V、-12V、+5V、(-5V)、+3V、+5VSB、 +3VSB、+1.5VSB、+1.5V、+5V_Dual、+3V_DUAL、+2.5V_DUAL、+ 2.5V_DAC、1.8V_Dual、VCORE、VTT_DDR、VTT+_CPU ect. ATX Power Supply +3V: Pin1,2,12,13 +5VSB: Pin9 +5V: Pin4,6,21,22,23 +12V: Pin10,11 PS_ON#: Pin16 GND: Pin3,5,7,15, 17,18,19,24 -12V: Pin14 PWROK: Pin8 NC: Pin20 ATX2.2 ATX Power Supply +12V: Pin3,4 主要用来给CPU Vcore部分供电 GND: Pin1,2 ATX2.2 ATX Power Supply �Voltage Tolerances +5VSB �+5VSB: Standby power提供power down state下主板需 要的各种电压,包括:Standby and Dual power. �ATX规定提供的电流不低于10mA.但是目前的主板为了提 供USB设备启动,网罗唤醒等功能,需要很大的电流.一般 的Power supply都可以提供2A左右. �Tolerance: +5V± 5% �需要用到stand by power的包括:Super I/O, South Bridge,LAN chip,etc.在S3状态下，除了上述部分需要 之外Memory所需的+2.5V dual. +3.3V �主板上有很多地方都需要+3.3V. �+3.3V一般是最晚从Power Supply供出的. �一般电源提供5A左右的电流. �电压供给: Audio Chipset; PCI; PCIEX; South Bridge; SIO; Bios; ±5V �1.主板上IO几乎全部使用+5V,比如: KBICS;VRM; �CPU用VTT_PWRGD信号确认VTT_CPU稳定在Spec之内,OK 后CPU会发出VID[0:5]. �VRM收到VTT_PWRGD后会根据VID组合送出Vcore. �在VCORE正常发出后,Processor Voltage Regulator即 送出VRMPWRGD信号给南桥ICH6,以通知南桥此时 VCORE 已经正常发出. 3.按下Power Buttom后的动作时 序 �在VTT_PWRGD正常发出后, 此信号还通知给Clock Generator(ICS);以通知Clock Generator在可以正常 发出所有Clock. 具体说明: •在SLP_S3# PWROK_PS CPUPWRGD +VTT_PWRGD +VTT_PWRGD PWROK +12v +3.3v +5v +VTT_CPU +3VSB P5GD2-VM 上电时序图 SBSBSBSB SIOSIOSIOSIO V V V V R R R R MMMM ATXATXATXATX NBNBNBNB CPUCPUCPUCPU 3v_Bat RTC_RST# 32.768 +3Vsb RSMRST# PWRBTN# IO_PWRBTN#IO_PWRBTN#IO_PWRBTN#IO_PWRBTN# SLP_S3# SLP_S4# PS_ON# +VID[ 0:5 ] Vcore VRMPWRGD PLTRST# PCI DevicePCI DevicePCI DevicePCI Device PCIRST# CPURST# AMD架构 上电时序 �A8 + Nforce4 �k8 + K8T800+VT8237 �k8 + Sis760+Sis965 �A8 + ATIRD480+M1573 A8N-SLI 上电时序 �A8 + Nforce4 (A8N-SLI为例) Nforce4Nforce4Nforce4Nforce4 S S S SIOIOIOIO CPUCPUCPUCPU VCORE&HTTVCORE&HTTVCORE&HTTVCORE&HTT +3vsb+3vsb+3vsb+3vsb1 1 1 1 PWRGD_SB PWRGD_SB PWRGD_SB PWRGD_SB 2.2. 2.2. SIO_PWBTIN SIO_PWBTIN SIO_PWBTIN SIO_PWBTIN 4.4. 4.4. SLP_S3# SLP_S3# SLP_S3# SLP_S3# 5 5 5 5 PWROK PWROK PWROK PWROK 9 9 9 9. . . . PWRBTIN PWRBTIN PWRBTIN PWRBTIN 3 3 3 3. . . . PSON# PSON# PSON# PSON# 6 6 6 6. ATX_PWRGD ATX_PWRGD ATX_PWRGD ATX_PWRGD 8.8. 8.8. ATXATXATXATX CPUVDD_ENCPUVDD_ENCPUVDD_ENCPUVDD_EN10101010 HTT_EN HTT_EN HTT_EN HTT_EN 10101010 25MHZ 25MHZ 25MHZ 25MHZ 1 1 1 1 +5VSB +5VSB +5VSB +5VSB 1 CPU_PWOK CPU_PWOK CPU_PWOK CPU_PWOK 14141414 3.3&1.53.3&1.53.3&1.53.3&1.5PLL PLL PLL PLL 电压电压 7 7 7 7 HTT_VLDHTT_VLDHTT_VLDHTT_VLD 13131313 VCORE_PG VCORE_PG VCORE_PG VCORE_PG 13131313 +12V&+5V&+3V +12V&+5V&+3V +12V&+5V&+3V +12V&+5V&+3V 7 7 7 7 +12V +12V +12V +12V 7 7 7 7 VCORE VCORE VCORE VCORE 1 1 1 12 2 2 2 VCORE VCORE VCORE VCORE 1 1 1 12 2 2 2 +1.5v+1.5v+1.5v+1.5v 7 7 7 7 +1.2V_HT +1.2V_HT +1.2V_HT +1.2V_HT 11111111 +1.2V_HT +1.2V_HT +1.2V_HT +1.2V_HT 11111111 CPURSTCPURSTCPURSTCPURST# 1# 1# 1# 15 5 5 5 K8V-MX 上电时序图 �K8 + K8M800+VT8237 (K8V-MX为例) SBSBSBSB ITE8282MITE8282MITE8282MITE8282M N N N NB B B B S S S SIOIOIOIO +3VSB +3VSB +3VSB +3VSB 1 1 1 1. . . . RSMRST# RSMRST# RSMRST# RSMRST# 2.2. 2. 2. PWRBTIN#PWRBTIN#PWRBTIN#PWRBTIN# 3. SIO_PWRBTIN# SIO_PWRBTIN# SIO_PWRBTIN# SIO_PWRBTIN# 4 4 4 4 PSON_SIO# PSON_SIO# PSON_SIO# PSON_SIO# 7 7 7 7 PSON# PSON# PSON# PSON# 8 8 8 8 ATX SUSC# SUSC# SUSC# SUSC# 5 5 5 5. . . . SUSB# SUSB# SUSB# SUSB# 6 6 6 6. . . . ATX_PWRG ATX_PWRG ATX_PWRG ATX_PWRG 10101010 +2.5vual_ref +2.5vual_ref +2.5vual_ref +2.5vual_ref 11111111 +2.5_en +2.5_en +2.5_en +2.5_en 12121212 +1.2_en+1.2_en+1.2_en+1.2_en 16161616 VCORE_EN VCORE_EN VCORE_EN VCORE_EN 1 1 1 13 3 3 3 VCORE_EN VCORE_EN VCORE_EN VCORE_EN 1 1 1 13 3 3 3 SB_PWROK SB_PWROK SB_PWROK SB_PWROK 17171717 VRMVRMVRMVRM +12&+5v&+3v +12&+5v&+3v +12&+5v&+3v +12&+5v&+3v 9 9 9 9 +12V +12V +12V +12V 9 9 9 9 CPUCPUCPUCPU VCOREVCOREVCOREVCORE 14141414 CPU_PWOROKCPU_PWOROKCPU_PWOROKCPU_PWOROK 18181818 CPU_PWOROK CPU_PWOROK CPU_PWOROK CPU_PWOROK 18181818 NB_PWROK NB_PWROK NB_PWROK NB_PWROK 18181818 SB_PCIRST SB_PCIRST SB_PCIRST SB_PCIRST 19191919 Cpu_rst#Cpu_rst#Cpu_rst#Cpu_rst# 20202020 CPU_RST# CPU_RST# CPU_RST# CPU_RST# 20202020 VCORE_PG VCORE_PG VCORE_PG VCORE_PG 1 1 1 15 5 5 5 VCORE_PG VCORE_PG VCORE_PG VCORE_PG 1 1 1 15 5 5 5 K8S-MV 上电时序图 ATX_PSON# ATXPWROK SBSBSBSB SIS965LSIS965LSIS965LSIS965L SIOSIOSIOSIO W83627EHFW83627EHFW83627EHFW83627EHF V V V V R R R R MMMM ATXATXATXATX PowerPowerPowerPower NBNBNBNB SIS760SIS760SIS760SIS760 RSMRST# PWRBTN# VCORE IT8282MIT8282MIT8282MIT8282M VCORE_EN VCORE_PWGD SB_PSON# CPURST# +3V +5V -12V +12V CPUCPUCPUCPU PowerPowerPowerPower modulesmodulesmodulesmodules +2.5V_Dual_ref (DIMMPWR_EN) +2.5V_dual +2.5V_ref +2.5V +2.5V +1.2V_ref_EN +1.2V +1.2V +5VSB AC_PWR AGPRST# PCIE_RST# PCISLOTRST# BIOSRST# IDERST# PCIRST# CPU_PWGD CPU_PWRGD CPU_PWRGD +3VSB +3VSB �k8 + Sis760+Sis965 (K8S-MV为例) +12v +3v +5V SB_CPUPWROK +1.2V_HT +2.5V_DUAL VDIMM_DUAL_EN A。