NCP power stage for Lenovo 15 - is it really dummy chip?

[ktmmotocross]

Hello.
I ordered two NCP303150 for Lenovo 15 for GPU power phases. When i installed it it not work and i see that they have markings DUMMY on it. it is really dummy/fake/ ? ordered from SUHMS

[rediii]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

i doubt it, has anything changed after replacing? i would contact the buyer and ask for this...

[ktmmotocross]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

I replaced chips from another board just for test and now everything works. so SUHMS selling fakes. and i was thinking it is best seller for chips

[sikocan]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

Thank you for sharing this information, I have never encountered a dummy chip before.

[rediii]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

I replaced chips from another board just for test and now everything works. so SUHMS selling fakes. and i was thinking it is best seller for chips

this is awful. that was my one and only trustworthy chip seller...

[mon2]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

Just pinged the vendor. Waiting for his comments. Could be an honest mistake. Have not had any issues in the past with this vendor.

[ktmmotocross]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

SUHMS wrote me that marking is ok. 0 of 5 chips worked. NO refund

[mon2]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

Hmm. Are each of the ICs with 'DUMMY' marking? If yes, then I would have to conclude that they are blanks. Sometimes sold by SMT supply houses for training of the SMT equipment.

[rediii]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

SUHMS wrote me that marking is ok. 0 of 5 chips worked. NO refund

did you pay via paypal? if so: try to use the advantage of the buyer protection option.

[mon2]

Re: NCP power stage for Lenovo 15 - is it really dummy chip?

Contact AliExpress and open a dispute.