P8B75-M Repair Guide 03/01/2012 Leilei52_Chen CSC-GRMA POWER FLOW POWER ON SEQUENCE Voltage Measure Point multi meter “VΩ mA” port touch here Pink number is Diode resistance to GND(without any part on MB)multimeter type DH-1240 PU16 +5VSB 426 PL2 PU16 PL7 +VCCIO +3VSB 273 VCORE 510 EATX12V 12V_CPU 720 188 PQ18 +VCCSA 188 PL6 GFX 511 PQ22 +1.8VSFR 373 PQ21 +1.05PCH 33 PU15PIN4 PL9 +1.5VDUALL215 PQ26 +12/5VDUAL 692 PL802 +1.05ME 172 EATXPWR +12V 612 EATXPWR +3V 398 EATXPWR +5V 26 VTTDDR 310 Signal Measure Point 13.OR66 O_PWROK# 49 4.1OR22 11.ORN4 O_ATXPG 696 6.OR71 O_DPWROK#18 O_IOPWRBTN# 632 18.PQ39 VRMPWRGD660 4.OR44 RSMRST# 15 19.PCI1A15 S_PCIRST# 639 20 XC1 O_X16_RST# 730 12.PR131 P_VCCIO_PGOOD_10# ∞ 2.AC POWER SW ON 20 X4C1 O_PCIEX4_RST#701 16 PR28 P_VCORE_VCLK_4 245 3.5VSB,3VSB 16 PR24 P_VCORE_VDIO_4 245 10.1 12V,5V,3V 17.VCORE 21.GFX 15.HC1 H_CPUPWRGD 516 19.FR2 S_PLTRST#271 14.HR13 S_DRAMPWROK 325 1.SR15 S_ RTCRST# 791 1.SR15 S_ SRTCRST# 791 7.1PQ815 S_SLP_A# 412 5.F_PANEL PWRBTN#_PANEL968 8.OR34 S_SLP_S4#_R 421 10.EATXPWR PSON# 705 OR35 S_SLP_S3#_R 421 7.2PQ813 S_MEPWROK 761 ...POWER FLOW POWER ON SEQUENCE Voltage Measure Point multi meter “VΩ mA” port touch here Pink number is Diode resistance to GND(without any part on MB)multimeter type DH-1240 PU16 +5VSB 426 PL2... +1.05ME 172 EATXPWR +12V 612 EATXPWR +3V 398 EATXPWR +5V 26 VTTDDR 310 Signal Measure Point 13.OR66 O_PWROK# 49 4.1OR22 11.ORN4 O_ATXPG 696 6.OR71 O_DPWROK#18 O_IOPWRBTN# 632 18.PQ39 VRMPWRGD660... S_DRAMPWROK 325 1.SR15 S_ RTCRST# 791 1.SR15 S_ SRTCRST# 791 7.1PQ815 S_SLP_A# 412 5.F_PANEL PWRBTN#_PANEL968 8.OR34 S_SLP_S4#_R 421 10.EATXPWR PSON# 705 OR35 S_SLP_S3#_R 421 7.2PQ813 S_MEPWROK