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I'm having a challenge with my Helios 300 PH315-51. It unexpectedly shuts down when gaming. At first I thought it was thermal, so I had it professionally cleaned and re-pasted (I know, I know, but I work full time/go to grad school/have a 10-month old) and got a cooling pad. I've also optimized windows and undervolted using Throttlestop, guided by Hotel Hero’s youtube videos. BIOS is updated, and I did a clean install a few months ago. The machine does what appears to be a thermal shutdown at only about 60-75 C, unless it's unplugged. It doesn’t shut down when I’m only using battery, but as soon as it’s plugged in it shuts down within minutes. On xapim’s recommendation I ran hwinfo and found that the battery wear was 14.7%, if that helps. Any ideas?