Are you using the correct charger with this laptop and the proper charging cable? The original Apple charging cable doesn't have any symbols on the cable connector. I believe it is most likely a hardware issue of some sort. I don't know why cpu thermal level easy go to maximum when watching web video.Īnyone here have same problem? or have any solution? I tried open on system library extention apple put command to drop cpu floor. Problem will gone if I close whole browser, thermal level will drop from 250 to 100 in 2-4 minutes and from 100 to 40-50 in 15-20 minutes everything back to normal if I'm not tried to watching video. I clean install macbook pro with big sur, imac with monterey public release beta. I have tried many method that I read on internet (use fans control app, turbo boost, command line instruction, tweak browser configuration and many more) not work, change macbook thermal paste not working too. thermal level under 60 degree celcius with external monitor, cpu temp around 55-60 degree celcius. in 10-15 will drop cpu to 0.85Ghz and mac to laggy.īut if I running adobe primier pro, photoshop, illustrator with lot of layers, or watching offline video on quicktime everything run smoothly. When I watching web video ( youtube, netflix, disney etc) in every browser (safari, chrome, firefox) and in 10-15 menit.boom cpu drop to 0.8Ghz and mac to be unusable, everything to be lag, keyboard, mouse, close application.Ĭpu thermal level : 250, reach cpu/gpu Plimit.Įven I only watch in single tab in one browser no other app running. my IMAC 2017 (18.3) and macbook pro 2015 got problem since 2-3 month ago. If it reports an error make sure to take a picture of the screen so you can show the Apple tech.Īlso make sure to disconnect all external devices to make sure one of them isn't causing a problem.ĬPU drop to 0.8Gz when Watching web video. I think an independent Apple Authorized Service Provider will be your best option. Probably the only way you can convince Apple there is a problem is by showing them how much more slowly an Apple app runs on this laptop with a clean install of macOS compared to another Apple laptop (preferably a lower end model). Have you tried using the USB-C ports on the other side of the laptop? When Apple uses the computer everything just appears to work although much more slowly (more noticeable with some apps than others of course). To Apple the laptop is running perfectly normally since none of their tools or diagnostics test for CPU throttling. Unfortunately Apple doesn't recognize any third party apps which show the CPU frequency, but perhaps an Apple Authorized Service Provider may be more willing to look at those findings. The battery is the most likely cause of a power issue, but it could also be caused by the charger, cables, I/O ports, or the Logic Board. The two ways this happens is when the laptop is running at 100C with the fans at high speed, or when you have a power issue. How are you determining that the CPU is being throttled to 800 MHz?
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