Hi there,

I have been having this powerful machine (i9, 32GB, GTX 2080 MaxQ) for a few years, was perfectly stable and fast BUT currently started to develop an issue.

The laptop shuts down under load (let's say if i start a game) if the battery is connected to the motherboard. If this happens the laptop won't turn on afterwards until I physically disconnect and reconnect the battery cable.

It works perfect (can play whatever games) if I unplug the battery and just use my machine with the my original AC adapter.

Interestingly, this started happening a few weeks after I reapplied some new thermal paste on the CPU/GPU. Although it was working fine for a few weeks right after the process.

I have an original Dell 60W battery in my laptop, but because of the issue above I bought a new 90W battery as well. That's a compatible, but not Alienware branded XRGXX model. The issue is the same with the new battery. It just shuts down when playing games, but works fine for normal day to day tasks or even video editing. (just like with the original 60W battery)

I have the latest BIOS (2.5) installed and already reinstalled Windows 10 battery drivers, and restored BIOS default settings.

I also double checked cables/connections inside and just in case reapplied thermal paste as well, but the shutting down issue still present if i use the machine with battery.

Any ideas what this could be?

Thanks guys!