Z87-A Repair Guide BLOCK DIAGRAM chineseipcfix 工控及台机主板维修群，（兴趣 交流和通迅，群号 480309081） 05/24 2013 Leilei52_Chen CSC-GRMA 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 Voltage Measure Point multi meter “VΩmA” port touch here Pink number is Diode resistance to GND(without any part on MB)multimeter type DH-1240 PQ302 +3V_DUAL_LAN ∞ PQ605 +5V_DUAL_USBKB 523 EATX12V 12V_CPU 557 PU300 +3VSB_ATX 441 PU300 +5VSB_ATX 570 PQ301 +3VSB 366 O2PQ1 +5VSB PL1003 VCCIN 143 518 PU202 PU301 +1.5VLX VTT_DDR 593 366 PL202 +1.5VDUALL227 EATXPWR +12V 556 PQ3008 +1.05PCH 89 EATXPWR EATXPWR +3V 285 +5V 420 PL200 +5VDUAL 475 Signal Measure Point 6.OR711 O_PWRBTN# 2.AC POWER SW ON 536 3.5VSB,3VSB S_SLP_A# 7.1 S_SLP_LAN# 13.HR518 S_DRAMPWRGD 332 10.1 12V,5V,3V 16.VCORE 19 PCIEX16_1 19 PCIEX16_2 19 PCIEX16_3 O_PCIRST#_PCIEX16_2 O_PCIRST#_PCIEX16_1 566 566 17.PU1001 P_VRMPWRGD 483 O_PCIRST#_PCIEX16_3 575 12.HQ6 O_PWROK 492 15 PR1029 15 PR1008 /9.PR3024 1.SR120 S_ SRTCRST# 775 H_VIDCLK S_SLP_S3# 410 14.HR13 /8.O3D2 S_SLP_S4# H_VIDDATA 511 S_CPUPWRGD 359 408 18.HQ8 H_CPURST# 578 1.SR120 S_ RTCRST# 3.SQ11 O_DPWROK 4.O2D1 775 16 O_RSMRST# 17 7.2.PQ3002 S_MEPWROK ∞ 5.PANEL O_PWRBTN#IN 663 9.EATXPWR O2_PSON# 989 11 EATXPWR B_ATX_PWROK 585 511 ... Voltage Measure Point multi meter “VΩmA” port touch here Pink number is Diode resistance to GND(without any part on MB)multimeter type DH-1240 PQ302 +3V_DUAL_LAN ∞ PQ605 +5V_DUAL_USBKB 523 EATX12V... EATXPWR EATXPWR +3V 285 +5V 420 PL200 +5VDUAL 475 Signal Measure Point 6.OR711 O_PWRBTN# 2.AC POWER SW ON 536 3.5VSB,3VSB S_SLP _A# 7.1 S_SLP_LAN# 13.HR518 S_DRAMPWRGD 332 10.1 12V,5V,3V 16.VCORE 19... +3VSB_ATX 441 PU300 +5VSB_ATX 570 PQ301 +3VSB 366 O2PQ1 +5VSB PL1003 VCCIN 143 518 PU202 PU301 +1.5VLX VTT_DDR 593 366 PL202 +1.5VDUALL227 EATXPWR +12V 556 PQ3008 +1.05PCH 89 EATXPWR EATXPWR