HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

[Yehuda170]

anyone knows what this ic is? it's getting hot

I think Q6101 is the referring to it

it's a 5 pins ic marked on 3G=S3F

no schematics available

[mon2]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

Fauda!!! (Lior fan).

This is a sot23-5 package.

Post a larger pic of this area. So far unable to locate this device by Richtek Semiconductor.

Perhaps the first marking is 'B' or '8'. No hits yet.

[mcplslg123]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

seems like RT9069-33GB

[rediii]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

seems like RT9069-33GB

or this

https://cdn.badcaps-static.com/pdfs/...c9909ee28b.pdf

https://www.aliexpress.us/item/32568...apt=4itemAdapt

[Yehuda170]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

When laptop is on these are the Voltages I get on this IC

the laptop turns off after few minutes & this ic gets hot, if i take the ic out the laptop turns on but no POST

it looks like it outputs 1.8v but the i think it shouldn't gets so hot like that

[Yehuda170]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

thanks to all, it's probably is RT9078 like rediii said

i'll try to replace & update results

[rediii]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

thanks to all, it's probably is RT9078 like rediii said

i'll try to replace & update results

first desolder it and measure resistance to ground on all pins

[mcplslg123]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

The ic doesnt seems damaged-so merely replacing it wont help either. measure resistance on the output pin-01 With IC soldered 02.With IC desoldered. No power in both case.

[Yehuda170]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

I replaced it with another one and same happens. I noticed that 3.3v is measured 3.5V which is higher than normal. maybe that's why it shuts down after a minute?

[Sephir0th]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

I replaced it with another one and same happens. I noticed that 3.3v is measured 3.5V which is higher than normal. maybe that's why it shuts down after a minute?

With random observations and without following the given advice, you won't make any progress here. The 3.5V shouldn't be a issue and can be noticed on many boards. Also, never replace a component without making sure the issue isn't the motherboard. So now please do as mentioned by mcplslg123 and measure the pins of the IC.

[Yehuda170]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

Diode Reading in picture

pin 1 resistance to GND is 35KΩ with IC

32.5KΩ with no IC

[mcplslg123]

Re: HP ENVY - 13-aq 18744-1 burnt ic 3G=S3F

I think pin1 is not the output pin-perhaps pin5 is output pin. You have misunderstood my suggestion,i just highlighted two scenarios by putting 01 and 02-with ic soldered/without ic soldered.