You can artificially increase the fan speed to further reduce the CPU's heat, but this will also increase fan noise. Your Mac might run slower, but there's nothing to worry about. To take control of a fan, click the Custom button next to the fan and select how you want to control it. When your Mac gets hot, it starts throttling your CPU until the temperature gets under control. Some Caveats Before You Start Controlling Fans In case there's a problem in the hardware, the data from your fan can help build a case for an AppleCare repair. Can someone help me set up Macs Fan Control to lower the temps a bit.You can monitor the fan speed to see if your Mac maintains a normal operating temperature of 10-35 degrees Celsius.While there's no ideal speed range of the fan in any Mac model, seeing consistent readings during normal system usage can be assuring.If you use your Mac in a noise-sensitive environment, controlling the fan speed can reduce the noise for a brief period.When you replace a component, the log data of fan speed can help you check the integrity of low-level components and temperature sensors.It enables you to see what different sensors are showing, analyze temperature patterns, and review your fan's speed.Use the YouTube HTML5 Video Player to watch YouTube videos, when available.Install ClickToFlash (Safari), Flashblock (Firefox) or FlashBlock (Chrome) to control which Flash content plays on websites.Find your Flash version and make sure it's the latest version available. MacBook Pro (Retina, 15-inch, Mid 2012) - Obsolete MacBook Pro Model: MacBookPro10,1 2.Make sure the vents remain unblocked to allow your computer to perform at its best. The iMac vent is a slot on the back near the top of the computer. The intake and exhaust vents are in the back of the computer near the hinge on all Mac notebooks. (PRAM/NVRAM has nothing to do with these issues, so resetting it will not help.) If they're spinning up without increased heat, try resetting the SMC. They will spin faster as needed to keep temps at a safe level. iMacs have 3 fans with minimum speeds in the 800-1200 range. Your fans are always on when your Mac is on, spinning at a minimum of 2000 rpm (for MBPs) or 1800 rpm (for MBAs, MBs and minis). This doesn't indicate that it's overheating and will not harm the computer to be hot to the touch. The aluminum body transfers heat more effectively than other materials used in computer casings, so you will feel the heat more. Click Edit at the bottom to edit your widgets list. Normal is anywhere from room temp and up but nothing over 50. Before replacing your trackpad, download Macs Fan Control and see what your battery temp sensor is reading. You can add a widget for this app in your Notification Center, using the following steps: Open the Notification Center on your Mac. Since you replaced your board and HDD cable there is not much left. It is also quite normal for your Mac to become extremely hot to the touch during intensive operations. Click the icon there and you’ll see the current fan speeds and CPU and GPU temperatures on your Mac. It's just your Mac doing its job to maintain temps within the normal range. Fans are cheaper and easier to replace than GPUs. Also worth buying a second set of fans off eBay, as running constantly will probably kill them. This will keep the GPU under 80 celcius at moderate loads (eg: web browsing with a 2nd display). If you're constantly putting high demands on your system, such as gaming or other multimedia tasks, expect temps to rise and fans to spin up accordingly. OTOH software like MacsFanControl lets you set a lower temperature for the fans to kick in. Websites with Flash content, games and other multimedia apps will put higher demand on the CPU/GPU, generating more heat. Unless there is a rare defect in a Mac, most temps are well within the normal operating range, considering the workload being put on it. iStat Pro will give you accurate readings of your temps and fan speeds, among other things. The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat (around 100C/212F - 105C/221F, depending on your processor). Click to expand.Any fan control software that limits the maximum fan speed is not recommended, as it can cause overheating.
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