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SYSTEM PAGE REF.

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K42Jv SCHEMATIC Revision 2.0 Power
1 Block Diagram VCORE
2 System Setting
3
4
CPU(1)_DMI,PEG,FDI,CLK,MISC
CPU(2)_DDR3
BLOCK DIAGRAM System
D D
5 CPU(3)_CFG,RSVD,GND
6 CPU(4)_PWR
7 CPU(5)_XDP 1.5VS & 1.05VS
16 DDR3 SO-DIMM_0
17 DDR3 SO-DIMM_1
18 DDR3 CA_DQ VOLTAGE DDR & VTT
19 VID controller
20 PCH_IBEX(1)SATA,IHDA,RTC,LPC
21 PCH_IBEX(2)_PCIE,CLK,SMB,PEG CPU zHM6601/008 3RDD +2.5VS
N11P-GS1 61x EICP
6 EICP DDR3 SO-DIMM
22 PCH_IBEX(3)_FDI,DMI,SYS PWR ARRANDALE
23 PCH_IBEX(4)_DP,LVDS,CRT IMDH
IMDH
IMDH
IMDH TRC
TRC
TRC
TRC SDVL
SDVL
SDVL
SDVL
24 PCH_IBEX(5)_PCI,NVRAM,USB Charger
25 PCH_IBEX(6)CPU,GPIO,MISC 8x IDF
8x IDF
8x IDF
8x IDF 4x IMD
4x IMD
4x IMD
4x IMD
26 PCH_IBEX(7)_POWER,GND HDMI IMDH
IMDH
IMDH
IMDH
27 PCH_IBEX(8)_POWER,GND Detect
28 PCH_SPI ROM,OTH
29 CLK_ICS9LVS3162
SDVL
SDVL
SDVL
LCD Panel
30 EC_IT8512(1/2) Load Switch
C
31 EC_IT8512(2/2)KB, TP C

32 RST_Reset Circuit
TRC
CRT
33 JMC251 Power Protect
MiniCard
34 LAN_RJ45 WLAN
36 CODEC-ALC269 Shirley Peak/ Echo Peak
37 AUD_Amp & Jack Debug Conn. 1x EICP
38 AUD_FM2010
40 CB_R5C833 Touchpad CPL PCH
41 CB_R5C833 EC JMC251 RJ45
42 CB_4in1 CardReader IT8570
Ibex Peak-M
43 CB_NewCard Keyboard IPS
IPS
IPS
IPS
44 BUG_Debug BSU
BSU
BSU
BSU CardReader
45 CRT_LCD Panel
46 CRT_D-Sub SPI ROM
47 Display Port USB 3.0
48 TV_HDMI UPD720200F1
50 FAN_Fan & Sensor
51 XDD_HDD & ODD
52 USB_USB Port *2 ATAS
B 53 MINICARD(WLAN) CMOS Camera B

56 LED_Indicator INT. MIC
57 DSG_Discharge
ailazA
USB Port(1)
60 DC_DC & BAT Conn. Bluetooth
61 BT_Bluetooth ODD
SPEAKER
Azalia Codec USB Port(2)
64 TUN_TV Tuner
Realtek ALC269
65 ME_Conn & Skew Hole HDD(1)
HP/E. MIC
66 ESA_ESATA USB Port(3)
67 PCH_XDP, ONFI


70 VGA_MXM
71 VGA_LVDS Switch

80 PW_VCORE(MAX17034)
81 PW_SYSTEM(MAX17020)
82 PW_I/O_VTT_CPU&+1.1VM
83 PW_I/O_DDR & VTT& +1.8VS VID controller Discharge Circuit DC & BATT. Conn.
A
84 PW_I/O_3VM & ME_+VM_PWEGD A


86 PW_+VGFX_CORE(MAX17028) Clock Generator
88 PW_CHARGER(MAX17015) ICS9LVS3162 PWM Fan Reset Circuit Skew Holes
90 PW_DETECT
91 PW_LOAD SWITCH
92 PW_PROTECT Title : Block Diagram
93 PW_SIGNAL Engineer: JAY_TSAI
ASUSTeK COMPUTER INC. NB4
94 PW_FLOWCHART Size Project Name Rev
C K42Jv 1.1
Date: Thursday, February 11, 2010 Sheet 1 of 96
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PCH_IBEX PCH_IBEX
Internal & EC EC GPIO Use As Signal Name
Use As Signal Name External Power GPA0 O PWR_LED#
GPIO GPIO Pull-up/down IT8570 GPA1 O CHG_LED#
GPIO 00 GPO - - +3VS
GPA2 O CHG_FULL_LED#
GPIO 01 GPO - INT TBD +3VS
GPA3 -
GPIO [2:5] Native - EXT PU +5VS
GPA4 O LCD_BL_PWM
GPIO 06 GPO - INT TBD +3VS
GPA5 O FAN0_PWM
GPIO 07 GPI USB30_SMIB EXT PU +3VS
EXT PU & INT PU
GPA6 -
GPIO 08 GPI EC_SMI# +3VSUS
D GPA7 - D
GPIO 09 Native OC5# EXT PU +3VSUS
GPB0 O BATSEL_0
GPIO 10 Native OC6# EXT PU +3VSUS
GPB1 O BATSEL_1
GPIO 11 GPI EC_SCI# EXT PU +3VSUS
GPB2 O ME_AC_PRESENT
GPIO 12 Native - EXT PU +3VSUS
GPB3 IO SMB0_CLK
GPIO 13 GPO - +3VSUS
GPB4 IO SMB0_DAT
GPIO 14 Native OC7# EXT PU +3VSUS
GPB5 O A20GATE
GPIO 15 GPO - INT PD +3VSUS
GPB6 O KB_RST#
GPIO 16 GPO DGPU_HOLD_RST# EXT PU +3VS
GPB7 O PM_RSMRST#
GPIO 17 GPI DGPU_PWRGD_PCH EXT PD +3VS
GPC0 O CLK_UC
GPIO 18 Native CLK_REQ1# EXT PU +3VS
GPC1 IO SMB1_CLK
GPIO 19 GPO - - +3VS
GPC2 IO SMB1_DAT
GPIO 20 Native CLKREQ2_WLAN#_R EXT PD +3VS
GPC3 O PM_PWRBTN#
GPIO 21 GPO - - +3VS
GPC4 I AC_IN_OC#
GPIO 22 GPO WLAN_BT_LED EXT PD +3VS
GPC5 O OP_SD#
GPIO 23 Native LPC_DRQ#1 +3VS
GPC6 I BAT1_IN_OC#
GPIO 24 GPO - - +3VSUS
GPC7 -
GPIO 25 Native CLK_REQ3# EXT PU +3VSUS
GPD0 -
GPIO 26 Native CLK_REQ4#(USB 3.0) EXT PU +3VSUS
INT WEAK PU
GPD1 I PM_SUSC#
GPIO 27 Native PCH_VRM_EN +3VSUS
C
GPD2 I BUF_PLT_RST# C
GPIO 28 GPO WLAN_ON - +3VSUS
GPD3 O EC_SCI#
GPIO 29 GPO - +3VSUS
GPD4 O EC_SMI#
GPIO 30 Native ME_SusPwrDnAck EXT PU +3VSUS
GPD5 O LCD_BACKOFF#
GPIO 31 Native ME_AC_PRESENT EXT PU +3VSUS
GPD6 I FAN0_TACH
GPIO 32 Native PM_CLKRUN# EXT PU +3VS
INT WEAK PU
GPD7 I HDMI_HPD
GPIO 33 GPI PCH_SPI_OV_RW +3VS
GPE0 -
GPIO 34 Native STP_PCI# EXT PU +3VS
GPE1 -
GPIO 35 Native SATACLKREQ# EXT PD +3VS
GPE2 -
GPIO 36 GPO DGPU_PWR_EN# EXT PU +3VS
GPE3 -
GPIO 37 GPI DGPU_PRSNT# EXT PD +3VS
GPE4 I PWR_SW#
GPIO 38 GPI PCB_ID0 EXT PD +3VS
GPE5 -
GPIO 39 GPI PCB_ID1 EXT PD +3VS
GPE6 I LID_SW#
GPIO 40 Native USB_OC2# EXT PU +3VSUS
EXT PU (Not used)
GPE7 -
GPIO 41 Native OC2# +3VSUS
EXT PU (Not used)
GPF0 - SM_BUS ADDRESS :
GPIO 42 Native OC3# +3VSUS
EXT PU (Not used)
GPF1 O VSUS_ON
GPIO 43 Native OC4# +3VSUS PCH Master
EXT PU (Not used)
GPF2 O VTT_DRAM_PWR_SEL1
GPIO 44 Native CLK_REQ5# +3VSUS SM-Bus Device SM-Bus Address
EXT PU (Not used)
GPF3 O VTT_DRAM_PWR_SEL2
GPIO 45 Native CLK_REQ6# +3VSUS Clock Generator(ICS9LVS3162) 1101001x ( D2 )
EXT PU (Not used)
GPF4 IO TP_CLK
B GPIO 46 Native CLK_REQ7# +3VSUS SO-DIMM 0 1010000x ( A0 ) B
GPF5 IO TP_DAT
GPIO 47 Native PECLK_REQ# EXT PU +3VSUS SO-DIMM 1 1010001x ( A4 )
GPF6 O THRO_CPU
GPIO 48 GPO - EXT PU +3VS
GPF7 O PCH_SPI_OV
GPIO 49 GPO PCH_TEMP_EN EXT PU +3VS WiFi/WiMax N/A
EXT PU (Not used)
GPG0 I ME_SusPwrDnAck_EC
GPIO 50 Native PCI_REQ1# +5VS EC Master (SMB1)
GPG1 I PM_SUSB#
GPIO 51 Native PCI_GNT1# INT PU +3VS SM-Bus Device SM-Bus Address
GPG2 -
GPIO 52 GPO DGPU_SELECT# EXT PU +5VS VGA Thermal IC(G781-1) 1001101x ( 9A )
GPG6 -
GPIO 53 GPO PCI_GNT2# INT PU +3VS
GPH0 IO PM_CLKRUN#
GPIO 54 GPO - - +5VS
GPH1 O VGA_DEEPIDLE (TBD)
GPIO 55 Native PCI_GNT3# INT PU +3VS
GPH2 O CHG_EN PCIE 1 USB 0 USB Port (1)
GPIO 56 Native CLKREQ2_GLAN#_R EXT PD +3VSUS
GPH3 O SUSC_EC# PCIE 2 Minicard WLAN USB 1 USB Port (2)
GPIO 57 GPO BT_ON EXT PU(DIODE) +3VSUS
GPH4 O SUSB_EC# PCIE 3 USB 2 USB Port (3)
GPIO 58 Native SML1_CLK EXT PU +3VSUS
GPH5 - PCIE 4 USB 3.0 USB 3
GPIO 59 Native USB_OC01# EXT PU +3VSUS
GPH6 O CAP_LED# PCIE 5 USB 4
GPIO 60 GPO - - +3VSUS
GPI0 I GPU_ALERT# PCIE 6 GLAN USB 5
GPIO 61 Native PM_SUS_STAT# - +3VSUS
GPI1 I SUS_PWRGD PCIE 7 USB 6
GPIO 62 Native SUS_CLK - +3VSUS
GPI2 I ALL_SYSTEM_PWRGD PCIE 8 USB 7
GPIO 63 Native PM_SLP_S5# - +3VSUS
GPI3 I VRM_PWRGD USB 8 WLAN
GPIO 64 Native CLK_OUT0 INT TBD +3VS
GPI4 I PCH_TEMP_ENABLE USB 9 CMOS Camera
A
GPIO 65 Native CLK_OUT1 INT TBD +3VS A
GPI5 I CPU_VCORE_I_SEN SATA 0 SATA HDD (1) USB 10
GPIO 66 Native EDID_SELECT# INT TBD +3VS
GPI6 I DGPU_VCORE_I_SEN SATA1 SATA ODD USB 11
GPIO 67 Native CLK_OUT3 INT TBD +3VS
GPI7 - USB 12 Bluetooth
GPIO 72 GPO PM_BATLOW# EXT PU (Not used) +3VSUS
GPJ0 O CPU_VRON USB 13
GPIO 73 Native CLK_REQ0# EXT PU (Not used) +3VSUS
EXT PU (Not used)
GPJ1 O PM_PWROK
GPIO 74 GPO - +3VSUS
GPJ2 O VSET_EC Title : System Setting
GPIO 75 Native SML1_DATA EXT PU +3VSUS
GPJ3 O ISET_EC ASUSTeK COMPUTER INC. NB4 Engineer: JAY_TSAI
Size Project Name
GPJ4 O V_DA_EC/VCORE_SEL1 Rev
C K42Jv 1.01
GPJ5 O VCORE_SEL2 Date: Thursday, February 11, 2010 Sheet 2 of 96
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U0301A
B26 PEG_IRCOMP_R R0301 1 1% 2 49.9Ohm

22 DMI_TXN0 A24
PEG_ICOMPI
PEG_ICOMPO
A26
B27
Main Board
DMI_RX#[0] PEG_RCOMPO EXP_RBIAS R0302 1%
22 DMI_TXN1 C23 A25 1 2 750Ohm
DMI_RX#[1] PEG_RBIAS
22 DMI_TXN2 B22 PCIENB_RXN[15:0] 71
DMI_RX#[2] PCIENB_RXN15
22 DMI_TXN3 A21 K35
DMI_RX#[3] PEG_RX#[0] PCIENB_RXN14
J34
PEG_RX#[1] PCIENB_RXN13
22 DMI_TXP0 B24 J33
DMI_RX[0] PEG_RX#[2] PCIENB_RXN12
22 DMI_TXP1 D23 G35
DMI_RX[1] PEG_RX#[3]




DMI
DMI
22 DMI_TXP2 B23 G32 PCIENB_RXN11
DMI_RX[2] PEG_RX#[4] PCIENB_RXN10
22 DMI_TXP3 A22 F34
DMI_RX[3] PEG_RX#[5] PCIENB_RXN9
F31
PEG_RX#[6] PCIENB_RXN8
22 DMI_RXN0 D24 D35
DMI_TX#[0] PEG_RX#[7] PCIENB_RXN7
22 DMI_RXN1 G24 E33
DMI_TX#[1] PEG_RX#[8] PCIENB_RXN6 U0301B T0318
22 DMI_RXN2 F23 C33 1
DMI_TX#[2] PEG_RX#[9] PCIENB_RXN5 R0303 1%
22 DMI_RXN3 H23 D32 2 1 20Ohm H_COMP3 AT23
D DMI_TX#[3] PEG_RX#[10] PCIENB_RXN4 COMP3 D
B32 A16 BCLK_CPU_P_PCH 25
PEG_RX#[11] BCLK




MISC
22 DMI_RXP0 D25 C31 PCIENB_RXN3 R0304 2 1% 1 20Ohm H_COMP2 AT24 B16
DMI_TX[0] PEG_RX#[12] COMP2 BCLK# BCLK_CPU_N_PCH 25
22 DMI_RXP1 F24 B28 PCIENB_RXN2
DMI_TX[1] PEG_RX#[13] PCIENB_RXN1 1 49.9Ohm H_COMP1




CLOCKS
22 DMI_RXP2 E23 B30 R0305 2 1% G16 AR30
DMI_TX[2] PEG_RX#[14] COMP1 BCLK_ITP CLK_ITP_BCLK 7
22 DMI_RXP3 G23 A31 PCIENB_RXN0 AT30
DMI_TX[3] PEG_RX#[15] BCLK_ITP# CLK_ITP_BCLK# 7
PCIENB_RXP[15:0] 71 R0306 2 1% 1 49.9Ohm H_COMP0 AT26
PCIENB_RXP15 COMP0
J35 E16 CLK_DMI_PCH 21
PEG_RX[0] PCIENB_RXP14 PEG_CLK
H34 D16 CLK_DMI#_PCH 21
PEG_RX[1] PCIENB_RXP13 +VTT_CPU PEG_CLK#
22 FDI_TXN[7:0] H33 T0301 1TP_SKTOCC# AH24
FDI_TXN0 PEG_RX[2] PCIENB_RXP12 SKTOCC#
E22 F35 A18 CLKDREF R0366 2 1 1KOhm
FDI_TXN1 FDI_TX#[0] PEG_RX[3] PCIENB_RXP11 DPLL_REF_SSCLK
D21 G33 A17 CLKDREF# R0367 2 1 1KOhm
FDI_TXN2 FDI_TX#[1] PEG_RX[4] PCIENB_RXP10 DPLL_REF_SSCLK#
D19 E34 R0307 2 1% 1 49.9Ohm H_CATERR# AK14
FDI_TX#[2] PEG_RX[5] CATERR#




THERMAL
FDI_TXN3 D18 F32 PCIENB_RXP9
FDI_TXN4 FDI_TX#[3] PEG_RX[6] PCIENB_RXP8
G21 D34
FDI_TXN5 FDI_TX#[4] PEG_RX[7] PCIENB_RXP7
E19 F33 F6 M_DRAMRST# 16,17

PCI EXPRESS -- GRAPHICS
FDI_TXN6 FDI_TX#[5] PEG_RX[8] PCIENB_RXP6 SM_DRAMRST#
F21 B33 25 H_PECI AT15
FDI_TX#[6] PEG_RX[9] PECI
Intel(R) FDI
Intel(R) FDI
FDI_TXN7 G18 D31 PCIENB_RXP5 AL1 SM_RCOMP0 R0331 1 1% 2 100Ohm
FDI_TX#[7] PEG_RX[10] PCIENB_RXP4 SM_RCOMP[0]
A32 AM1 SM_RCOMP1 R0332 1 1% 2 24.9Ohm
PEG_RX[11] PCIENB_RXP3 SM_RCOMP[1]
22 FDI_TXP[7:0] C30 AN1 SM_RCOMP2 R0333 1 1% 2 130Ohm
FDI_TXP0 PEG_RX[12] PCIENB_RXP2 H_PROCHOT_S# SM_RCOMP[2]
D22 A28 AN26
FDI_TXP1 FDI_TX[0] PEG_RX[13] PCIENB_RXP1 PROCHOT#
C21 B29 AN15 PM_EXTTS#0 16,17
FDI_TX[1] PEG_RX[14] PM_EXT_TS#[0]




DDR3
MISC
FDI_TXP2 D20 A30 PCIENB_RXP0 AP15 PM_EXTTS#1
FDI_TXP3 FDI_TX[2] PEG_RX[15] PM_EXT_TS#[1]
C18 PCIEG_RXN[15:0] 71
FDI_TXP4 FDI_TX[3] PCIENB_TXN15 CX0316 0.1UF/16V PCIEG_RXN15 +VTT_CPU RN0301C
G22 L33 1 2 32 H_THRMTRIP# AK15 5 10KOhm 6
FDI_TXP5 FDI_TX[4] PEG_TX#[0] PCIENB_TXN14 CX0315 0.1UF/16V PCIEG_RXN14 THERMTRIP# RN0301A
E20 M35 1 2 2 10KOhm 1 7 10KOhm 8
RN0301D
FDI_TXP6 FDI_TX[5] PEG_TX#[1] PCIENB_TXN13 CX0314 0.1UF/16V PCIEG_RXN13 RN0301B
F20 M33 1 2 4 10KOhm 3
FDI_TXP7 FDI_TX[6] PEG_TX#[2] PCIENB_TXN12 CX0313 0.1UF/16V PCIEG_RXN12
G19 M30 1 2 AT28 XDP_PRDY# 7
FDI_TX[7] PEG_TX#[3] PRDY#
PEG_TX#[4]
L31 PCIENB_TXN11 CX0312 1 2 0.1UF/16V PCIEG_RXN11
PREQ#
AP27 XDP_PREQ# 7 IPU
22 FDI_FSYNC0 F17 K32 PCIENB_TXN10 CX0311 1 2 0.1UF/16V PCIEG_RXN10 1 T0307
FDI_FSYN