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Repair Sharing

Repair Sharing. [P8H61-M LE ]: No Display The Initial Problem Analysis: 1 : Visually check MB slot for damage. Check front and back of the board for line breaks. 2: Check SX1 if it has 32.768 KHz or not. Check PU16 PIN2 +3VSB and OR1 PIN1 +3VSB_ATX are normal.

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Repair Sharing

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  1. Repair Sharing • [P8H61-M LE]:No Display • The Initial Problem Analysis: • 1 : Visually check MB slot for damage. Check front and back of the board for line breaks. • 2: Check SX1 if it has 32.768 KHz or not. Check PU16 PIN2 +3VSB and OR1 PIN1 +3VSB_ATX are normal. • 3: After plugging CPU and power on, on board port(DVI, VGA) has no display at B2 code. • 4: Definition and Type of no display: • A. CPU socket PINs are normal or not. • B. GFX power is normal or not. • C. The working condition of CPU & SB. CPU calculates the data and it would be transmitted to SB (through FDI bus). After that SB will transform these data to be analog or digital information through VGA or DVI communication bus to display. • Repair process CPU socket PIN check(FDI PIN) Visually Check VCORE is normal. GFX has no voltage. Measure VCORE and GFX Measure the working condition of VCORE: VCC (+5V) EN Signal (+1.07V) Check PU1 (ASP1000RM) After checking other signals and voltage. Try to exchange PU1 to solve this case. Other Steps VGA_HSYNC_R VGA_VSYNC_R VGA_GREEN_L VGA_RED_L VGA_BULE_L VGA_DDC_DATA_R VGA_DDC_CLK_R +5V_VGA VGA impedance of signals DVI impedance of signals SB

  2. VGA impedance of signals DVI impedance of signals TX0+/-_L_DVI TX1+/-_L_DVI TX2+/-_L_DVI TXC+/-_L_DVI DVI_DDC_CLK DVI_DDC_DATA DVI_HDP +5V_HDMI SB +3V, 3VSB, 3VSB_ADV +1.05V 1.8VSFR VCCIO 3_3P3_DAV_FB VCCDMI_PLL_PCH VCCA_DPLLB VCCA_DPLLA SB Power 25MHz CK_14M_PCH CK_96M_PCH CK_100M_PCH CK_100M_DMI SB Frequency SB Others Signals O_PWROK S_PLTRST

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