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SK Hynix BC501 with a hfb1m8m0331a chip ...

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saronno

Post subject: SK Hynix BC501 with a hfb1m8m0331a chip ...

Posted: June 27th, 2025, 3:01

Joined: November 8th, 2018, 12:18
Posts: 31
Location: Italy

Hi, I have a dead BC501 from SK Hynix. I am checking the voltage around this all-in-one chip ... I got 1.8v ... 2.5v .... and 0.9v. Since I can't find the datasheet of the chip, does anyone know if the third one is ok? The power rails are not shorted anyway, they all have some kohm resistance.

TIA

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fzabkar

Post subject: Re: SK Hynix BC501 with a hfb1m8m0331a chip ...

Posted: June 27th, 2025, 11:35

Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia

0.9V sounds OK for Vcore.

_________________
A backup a day keeps DR away.

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saronno

Post subject: Re: SK Hynix BC501 with a hfb1m8m0331a chip ...

Posted: June 28th, 2025, 17:10

Joined: November 8th, 2018, 12:18
Posts: 31
Location: Italy

Thanks. So it's probably a corrupter firmware or, maybe, some solder ball under the chip .... does it make sense to try a reflow?

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