I only recently purchased a 2nd hand Mid 2015 Macbook Pro with both integrated and dedicated graphics chips. Idle temperatures were about 50 C. I then took the macbook to get professionally serviced where they cleaned it out and replaced the thermal paste. The idle temperatures then dropped to the low 30's C. When I really let it idle for a while it even drops below 30 C. After actually using the machine for a while the temperatures are in the low 40s C.
However, I noticed that the moment I decide to connect the macbook up to an external monitor via HDMI the idle temperatures immediately starts to rise from the low 30s C to the low/mid 50 C. I would probably imagine to see the temperatures rise after connecting an external monitor because of the extra graphical power needed, but I didn't think it would cause such a big increase in the idle temperatures? Especially if you consider the fact that during my whole troubleshooting/testing process the external monitor literally is only showing the desktop for the entire time.
Does anyone have any advice on this? Is this normal behaviour. Is there anything I can do to improve this? I have tried many things like resetting the NVRAM, resetting the SMC, booting into safe mode and then into regular mode afterwards etc. Could it be something weird like the mac switching to the integrated graphics after connecting an external monitor?
It's not that the macbook is "overheating" by any means, but it might do so if I decide to actually load the mac with more heavier tasks after connecting an external monitor.
All help is appreciated. Thanks.
However, I noticed that the moment I decide to connect the macbook up to an external monitor via HDMI the idle temperatures immediately starts to rise from the low 30s C to the low/mid 50 C. I would probably imagine to see the temperatures rise after connecting an external monitor because of the extra graphical power needed, but I didn't think it would cause such a big increase in the idle temperatures? Especially if you consider the fact that during my whole troubleshooting/testing process the external monitor literally is only showing the desktop for the entire time.
Does anyone have any advice on this? Is this normal behaviour. Is there anything I can do to improve this? I have tried many things like resetting the NVRAM, resetting the SMC, booting into safe mode and then into regular mode afterwards etc. Could it be something weird like the mac switching to the integrated graphics after connecting an external monitor?
It's not that the macbook is "overheating" by any means, but it might do so if I decide to actually load the mac with more heavier tasks after connecting an external monitor.
All help is appreciated. Thanks.