This occurs on a 65W, 95W, and 135W adapter. Specifically, while stable, and even with the Nitro's cooler cooling the CPU power phase(s) better, the battery will drain while under load, plugged in when config'd beyond a 25W TDP and for continuous boosting. However, even kept cool, the Aspire's motherboard's power circuitry is not capable of powering the up-TDP'd APU 'properly'. Warning: You can config these CPUs to get a LOT more performance and for indefinite boost periods using that cTDP utility. The beefier cooler does not need this feature, and I don't recc doing this, but it's neat having a 'yeet mode' switch. I also added a small switch into the Kensignton lock port that disconnects the PWM line to both fans which will run them 100%. (I also applied Kapton tape to the mobo under the GPU cooling section of the cooler to prevent flexing from causing a short) The PWM control for fan 2 can be bridged off the PWM control from fan 1, power and ground can be gotten from a nearby USB port. The stock cooler on the A315-41 was woefully insufficient for continuous load of any sort.ġ is resolved using a cTDP utility like Ryzen Controller and raising the throttle temp to AMD's spec or near it ~90c.Ģ is resolved with the same utility, but will need to play with the power and time limits for boost.ģ was resolved by installing the Nitro 5's (AN515-42) MUCH beefier cooler using Liquid Metal TIM after masking and sealing the CPU package w/ clear nailpolish. As OP discovered, there's a limited boost period (and current/power over time limits) to control thermals and limit battery consumptionģrd. Acer's AMD Ryzen APU laptops of this gen, including the Nitro 5 throttle/stop boosting 80c by defaultĢnd.
I don't know about your exact laptop but I 'rebuilt' and modded an Acer Aspire A315-41-R98U recently for a friend of mine.
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