HP Pavilion 17-ab091ms - white charging light, but no power

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

First, confirm what i have described. If it's so then AD_ID needs to be checked.

Hi.
Just tried it. Nothing happens. Just like pressing the power button.
I don't know why I saw it goes off and on the other time. Maybe I shorted something different or even it was just my mind. I tried only once back then.

[tksalalah@gmail.com]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

try to find of mosfet no 1 and to and check volt drain and source with multimeter connect negative probe to any ground on circuits and red brown to source of mosfet and drain

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

try to find of mosfet no 1 and to and check volt drain and source with multimeter connect negative probe to any ground on circuits and red brown to source of mosfet and drain

I don't remember if I answered that or not.
The mosfet seems to be PQ1002. I have 19.8V on pins 1, 2, 3, 5, 6, 7, 8. And 17.1V on pin 4.

[mcplslg123]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

Hi.
Just tried it. Nothing happens. Just like pressing the power button.
I don't know why I saw it goes off and on the other time. Maybe I shorted something different or even it was just my mind. I tried only once back then.

Then perhaps AD_ID is not the issue here. Btw, Have you flashed bios??

[SMDFlea]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

I don't remember if I answered that or not.
The mosfet seems to be PQ1002. I have 19.8V on pins 1, 2, 3, 5, 6, 7, 8. And 17.1V on pin 4.

What is the part number on top of the mosfet.

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

Then perhaps AD_ID is not the issue here. Btw, Have you flashed bios??

Not yet. I just received a Ch341a programmer and someone told me it could kill the eprom, cause it outputs 5V instead of 3.3V.
And if I do it without removing the chip from the board (using alligator clips) I could kill more stuff then only the eprom.
Still deciding if I'll take the risk or not.

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

What is the part number on top of the mosfet.

It's on previous posts.

[SMDFlea]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

Have you checked the traces for corrosion,theres some darker parts on a few,also pins 109,110,111 on the kbc look a bit blackened

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

Have you checked the traces for corrosion,theres some darker parts on a few,also pins 109,110,111 on the kbc look a bit blackened

I noticed that. And I cleaned it with IPA.

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

Well, I reflashed the BIOS and... nothing different. So, I injected 1.2V on the shorted capacitors PC6009 and PC6010 (assuming they are really shorted) and the board immediately pulled 4.4 amps from the injector. And started going lower, until it was stable at around 1.4 amps. Question: is it normal to have that drop? Or should the amps pulled be stable? I could not feel anything hot on the board.

[mcplslg123]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

You mean amps or mA(Milliamps)??

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

You mean amps or mA(Milliamps)??

Amps. Not mili.

[mcplslg123]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

This whole mb will run on less then 1A consumption. I'm afraid when current consumption was 4.4A ,its very likely SOC got killed as the injection point is very near to SOC.

[infozizou]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

This whole mb will run on less then 1A consumption. I'm afraid when current consumption was 4.4A ,its very likely SOC got killed as the injection point is very near to SOC.

you have volt in Coil of cpu and coil of ram?

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

you have volt in Coil of cpu and coil of ram?

The only coil with any volt is the one next to the battery connector, where it has 3V if I'm not mistaken.
The rest is all zero.

[mcplslg123]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

you have volt in Coil of cpu and coil of ram?

The question doesnt arise when mb is not even switching.

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

The question doesnt arise when mb is not even switching.

I re-assembled the laptop, just because everything apart was taking too much space in here and I needed to do other stuff. And... well, I didn't quite remember it, but with the battery installed the light is orange when the charger is connected, like the battery was being charged. If I remove the battery and connect the charger the white light comes up. Of course it does not turn on in both occasions, but I didn't remember an orange light was present when the battery was connected.
Does it tell you anything different?

[infozizou]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

The only coil with any volt is the one next to the battery connector, where it has 3V if I'm not mistaken.
The rest is all zero.

ok u have shematic board ? you need to check resistance in circle of power system this resistant who enable ic power
and check voltag of coil .

or you need to re program super io whiout remove it from board

[BMCappelletti]

Re: HP Pavilion 17-ab091ms - white charging light, but no power

ok u have shematic board ? you need to check resistance in circle of power system this resistant who enable ic power
and check voltag of coil .

or you need to re program super io whiout remove it from board

Seems like this is the schematic.