Hi
this laptop came working perfectly in Bios/Dos but hangs/freeze on loads, like loading the OS or trying to boot from any media that will put some load on the system..
I've 100% confirmed it's a CPU power problem because disabling intel speedstep or enabling overclocking capabilities option in the bios will lead to a no display startup till resetting bios settings..
I've disassembled the laptop and found burning marks on PL501 inductor and PU502 "SiC632CD" isn't perfectly aligned/soldered, so it looks like the laptop came from a failed repair attempt, I don't know if they replaced PU502 before or it was just waved.. I'll replace all of them and replace PL501 inductor but my question is:
- I have a bunch of NCP302045 chips, are they compatible and can replace SiC632CD ?
- If not, are SiC631 compatible ?
I'm a bit confused in the datasheets
here's a photo found on the web with identical problems on the same platform with the same burnt/failed PL501 inductor !
looks like it's a common thing on this platform:
sorry can't add images, here is a link: https://i.redd.it/cvt4wwlcvcy11.jpg
I'll post mine soon
