Safety and longevity implications when locking MMIO TPL limits
I have a Dell XPS 9510 with i9 11900h and 3050 ti mobile. Some recent issues (possibly a bios update) has made me realize that there are issues with the TPL throttling with my laptop causing it to throttle to 800 MHz and lag out completely just from watching YouTube.
For the time being, I have downloaded ThrottleStop, and locked MMIO. However I have some questions about how safe it is to do this:
- The MSR TPL limits are showing PL1: 72 and PL2: 109. From what I gather online, the CPU is rated for either 35W or 45W. Should I lower PL1?
- Could this cause unsafe levels of power draw from my laptop charger? For context, running the benchmark causes a constant PKG power of 45W.
- Will this wear out my CPU, battery, fans, or charger faster than normal over time? Does it make a difference that I have my laptop set to keep battery charge between 50 and 75?
- When playing a highly-multithreaded, CPU-intensive game, is it a good idea to disable turbo so that my CPU doesn't constantly hit 100C? Or should I lower PL1
- Should I change the dell power manager options for thermal management? Or does not not make a difference?
As an aside, why would PL1 throttling reduce the frequency all the way to 800, when the PL1 limit with ultraperformance is still fairly high at around 24W?
(BTW, not undervolting because I use WSL)