macRepairAmb
Member
Hello
Have this board that had corrosion damage. Repaired all the miss obvious missing traces. Replaced both CD3215 chips, along with blown resistors. Also replace U7000. I've reflashed a clean ME and also a complete BIOS. Still not powering up.
Here are the readings i have so far:
PP3V3_G3H: 3.4
SMC_RESET_L: 3.4
BUF_SMC_RESET_L.: 3.4
PPBUS_G3H: -0.13 (yeah these readings were erratic. I confirmed on oscope, it is generating negative voltage). On one instance, i had 0.3V reading.
PPBUS_G3H Diode mode: 0.43
TBA_VDDA: 5.2
TBA_VDDP: 5.2
PP1V1_UPC_XA_LDO_BMC: 0
PP1V1_UPC_XB_LDO_BMC: 0
Any suggestions.
Have this board that had corrosion damage. Repaired all the miss obvious missing traces. Replaced both CD3215 chips, along with blown resistors. Also replace U7000. I've reflashed a clean ME and also a complete BIOS. Still not powering up.
Here are the readings i have so far:
PP3V3_G3H: 3.4
SMC_RESET_L: 3.4
BUF_SMC_RESET_L.: 3.4
PPBUS_G3H: -0.13 (yeah these readings were erratic. I confirmed on oscope, it is generating negative voltage). On one instance, i had 0.3V reading.
PPBUS_G3H Diode mode: 0.43
TBA_VDDA: 5.2
TBA_VDDP: 5.2
PP1V1_UPC_XA_LDO_BMC: 0
PP1V1_UPC_XB_LDO_BMC: 0
Any suggestions.