with battery it starts wit blank screen, no post. But with adapter not triggering. i'm taking out the mobo now. Hp G62.
PM_I_hpc_s mv_mb_v3
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Re: PM_I_hpc_s mv_mb_v3
some hp laptops doesnt work with 2 pin adapter. so if you want it to work with 2 pin adapter, like mine you need to do some modification. you may try connecting 3th pin to gnd. i havent found the schem. yet. there is a problem in vcore power circuit. Cpu is overheating too much. i think cpu 's allready dead so i decided to give it bck to customer.Comment
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Re: PM_I_hpc_s mv_mb_v3
some hp laptops doesnt work with 2 pin adapter. so if you want it to work with 2 pin adapter, like mine you need to do some modification. you may try connecting 3th pin to gnd. i havent found the schem. yet. there is a problem in vcore power circuit. Cpu is overheating too much. i think cpu 's allready dead so i decided to give it bck to customer.
Regards.Comment
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Comment
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Re: PM_I_hpc_s mv_mb_v3
some hp laptops doesnt work with 2 pin adapter. so if you want it to work with 2 pin adapter, like mine you need to do some modification. you may try connecting 3th pin to gnd. i havent found the schem. yet. there is a problem in vcore power circuit. Cpu is overheating too much. i think cpu 's allready dead so i decided to give it bck to customer.
Regards.Comment
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Re: PM_I_hpc_s mv_mb_v3
Update : I get not light on ac connectors led with adapter but when I use battery I see led blinks 3 times indicating me battery is empty.
does it mean charger (8731AE) is gone ? some help would be great.
schematic is here;Comment
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Re: PM_I_hpc_s mv_mb_v3
Nope, today I fixed it changing 8731AE charger and it worked!
Problem description;
When plug AC adapter no power no blink but when plug a charged battery motherboard powers on. MAX8731AE have a circuit for switching between AC power and battery and it was broken.Comment
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Re: PM_I_hpc_s mv_mb_v3
I've got the same problem , g62 , i got the 3.3 volts on the main DCDC converter , getting 3.30 volts on on off button and drop to 0 when pressed ,cheked coild for dc output , i dont get 5 volts , and there is no short to the ground , cheking fet coils and caps after main dcdc , all are in shape .. simply dont notice light on the dc jack .. , could this be a bios problem ? main dc was changed and do the same thing . and also i dont get voltage on the bios ICComment
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