![]() ![]() This let me watch the fan speed ramp up as the temperature went up, so I knew something else was awry. I was able to put CPU die temperature (which once climbed to 99☌ before my MBP shut down), CPU proximity temperature and exhaust (fan speed) in my menu bar and monitor them simultaneously. My previous laptop overheated due to a bad CPU fan, so I initially thought I was dealing with a hardware problem again. I was interested in fan speed, which is measured by iStat and not by built-in tools like Apple's Activity Monitor. I picked iStat Menus because it was the first one I found that measured hardware as well as software. The app sits in your menu bar and can track your CPU & GPU usage, memory usage, disk activity, network activity, battery level and sensor readings like temperature. iStat Menus is perfect for diagnosing problems as it tracks a wide variety of statistics for your Mac. To help diagnose the problem, I turned to iStat Menus from Bjango to see what was going on underneath the hood of my Mac. I was wrong - the next morning and again the next evening I experienced the same overheating. Things cooled down inside my MBP, so I just brushed it off as an unusual combination of warm weather and excess apps. I fired it back up again, shut down some of the extra apps that usually run in the background and kept working. So hot that it left red marks where it was resting on my legs and the laptop shut itself down. The fan was spinning wildly and the aluminum case was hot to the touch. Time will tell and I will report back.Early last week, my 2011 MacBook Pro started acting up. I have now restarted iStat as I wonder whether the temperature issue was the effect of its resource usage on top of the other stuff. So I wonder if some aspect of the behaviour in this area has changed. I must confess that I don't remember what the settings were under El Capitan but I would hope they hadn't been changed but you can't take that for granted. I suspect it is the Power Nap setting that did it. That seems to have changed the temperature issue back to how it was before upgrading to High Sierra (ie it was quite cool when I picked it up after leaving it with the lid closed). Looking at the energy saver set up in system preferences, I finally decided to disable the wifi and Power Nap boxes under Power Adaptor as I tend to leave the MBP connected to the power when I am not using it. After being completely boggled on the internet trying to understand sleep/hibernation/standby I gave up on that side of things. I still believe that iStat Menus used sufficient resources to make a noticeable difference to the temperatures but other factors seem to be at play.ĭespite switching off iStat, I still had the MBP warm in the morning after supposedly being "sleeping". I have been active on my MBP even if not on the forum. I am not inclined to pay for something that I have to completely hamstring to prevent it doing this. Has anyone else noticed this and if so are there any suggestions as to how it should be used to avoid the issue. ![]() Switching it off gave an immediate cooling down of the laptop and changing the global setting from medium to slow update frequency also gave a noticeable temperature decrease. Further investigation clearly showed it was iStat Menus. At first I thought it was High Sierra as I have only just upgraded but it then occurred to me that it could be iStat Menus. I close the lid and expect it to go to sleep. I was very surprised this morning to find that my MBP was warm as if it had been active overnight. It works OK and I was happy with the summary on the menu bar. Looking at reviews iStat Menus seemed quite good. I tried XRG and didn't think too much of it. I looked at Activity monitor which is just too much info. Main reason I am trying it is that I want a replacement for the discontinued widget iStat Pro just so that from time to time I can look at aspects of the machines performance. I have just downloaded and installed iStat Menus as a 14 day trial. ![]()
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