I've got an HP Laptop: HP ENVY 14T-1200
The power cord and adapter that came with the laptop has recently become finicky and is starting to fail, so I ordered a new adapter. I found that HP's adapters are really expensive, so I went third party.
Under light use everything is fine, but I like to game sometimes and there is a very noticeable performance difference when I am using the new adapter. Some games will stutter for a few seconds every minute or so, and others will turn into slideshows when lots of stuff is happening on the screen. It seems as if once the GPU load hits a certain threshold, it gets throttled.
I've tried these things:
- Double checked the power plan settings, set usage to high performance
- Double checked to make sure the new adapter outputs the appropriate wattage for my machine
- Used hardware monitoring software to check temperatures, cleaned out my fans
The biggest fact that points to the new power adapter as causing the problem is that everything works fine on the old adapter (in the few instances I can actually get it to provide power).
I've heard about Dell deliberately causing slow downs on third party power adapters, but I haven't heard anything like that from HP. I wouldn't be surprised in the least, though.
Another possibility is that the new adapter isn't outputting what it says it is. I've yet to test that.
Anyway, any suggestions or information would be greatly appreciated. Thank you!
HP ENVY 14T-1200
CPU: Intel Core i5 M480 - 2.66GHz
GPU: Mobility Radeon HD 5650
RAM: 8.00 GB
OS: Windows 7 Home Premium 64 bit