Running the hardware diagnosis (holding the “D” key at startup) reveals that the battery might have problems but it says I should still be able to use the device without any noticable changes, showing the error code PPT004.
The original battery had been discarded so I cannot check whether this issue is actually caused by the battery at all, however inspecting the battery visually and using CoconutBattery I can see that it is not an OEM battery since there is no battery serial number being displayed. This is definitely not thermal throttling as the chipset never exceeds 50C, there are also no faulty sensors when checking with HWMonitor.
Using IntelPowerGadget on OSX or Task-Manager on Windows shows the CPU constantly being clocked down to 0.8ghz. The previous owner had apparently swapped the old battery out with a new iFixit replacement one and then immediately sold the device as it has been running slow ever since. I have recently gotten my hands on a Mid 2015 15” MBP that was running slow, hoping I could get it fixed back up for personal use.
0 kommentar(er)
