ASUS z87 a repair guide

POWER ON SEQUENCE.

CSC-GRMA

BLOCK DIAGRAM

chineseipcfix 工控及台机主板维修群，（兴趣

交流和通迅，群号 480309081）

POWER FLOW

chineseipcfix 工控及台机主板维修群，（兴趣

交流和通迅，群号 480309081）

POWER ON SEQUENCE

Frequency Flow

multi meter “ V Ω mA ” port touch here

EATXPWR +5V 420

PL200 +5VDUAL 475

PL202 +1.5VDUAL L 227

PQ3008 +1.05PCH 89

PL1003 VCCIN 143

PQ302 +3V_DUAL_LAN ∞

PU300 +3VSB_ATX 441

Voltage Measure Point

Pink number is Diode resistance to GND(without any part on MB)multimeter type DH-1240

PU300 +5VSB_ATX 570

2

EATX12V 12V_CPU 557

PQ301 +3VSB 366

EATXPWR +3V 285

EATXPWR +12V 556

O2PQ1 +5VSB 518

PU301 +1.5VLX 366

PQ605 +5V_DUAL_USBKB 523

Signal Measure Point

PU300 +3VSB

1.SR120 S_ RTCRST# 775

6.OR711 O_PWRBTN# 536

17.PU1001 P_VRMPWRGD 483

2.AC POWER SW ON 3.5VSB,3VSB

7 S_SLP_A#

7.1 S_SLP_LAN#

10.1 12V,5V,3V 16.VCORE

<4.1> /8.O3D2 S_SLP_S4# 408

1.SR120 S_ SRTCRST# 775

15 PR1029 H_VIDDATA 511

15 PR1008 H_VIDCLK 511

<4.2>/9.PR3024 S_SLP_S3# 410

3.SQ11 O_DPWROK 16