With its latest line of MacBook Air and MacBook Pro, Apple has made quite a splash simply because the laptops are powered by the company’s own processor. At the heart of the new Mac devices is the M1 chipset, which is reportedly faster than the Intel processors found in older MacBooks. iFixit, the teardown specialists, have reported that except the processor, both old and new MacBooks are pretty much the same internally.
“While Apple touts its M1-powered Macs as nothing short of a revolution, internally, they could hardly be any more similar to their predecessors,” as per iFixit.
First, about the MacBook Air. The big difference is the lack of a fan in the new model. Instead of the fan, Apple has put in an aluminium heat spreader “hanging off the left edge of the logic board.”
iFixit has also explained how without the fan the MacBook Air manages to keep it cool. “A thick cold plate over the M1 processor draws heat via conduction to its flatter, cooler end, where it can safely radiate away,” the report explains.
Apart from the fan, the rest of the internals of the MacBook are pretty much the same as its predecessor. The battery is a bit different but “the repair procedures will likely remain almost totally unchanged,” noted iFixit.
As for the MacBook Pro, iFixit says that the fan and cooling mechanism remains exactly the same as the Intel-powered MacBook Pro. “The M1 MacBook Pro’s cooling setup is very similar to that of its Intel-based ancestors: nothing fancy, just a copper pipe carrying heat away from the processor toward a small heatsink, where the hot air is promptly shown the grille by the fan,” explained iFixit in its teardown.
How do fans work in a laptop?
You would have noticed that any gadget you use does have a tendency to heat up. That’s because the electronic components inside them generate heat while they are working. Laptops are no different and the components inside them are packed in tightly. The casing of the laptop is quite narrow which leaves little room for heat to dissipate.
Laptops are also getting more powerful and require a lot of processing power, which in turn generates more heat inside them. The fan inside the laptop kicks in when too much heat is generated and cools it down. There are sensors in the motherboard of the laptop’s CPU that monitor the temperature and then direct the fan to work according to the task being performed. For instance, if you are using graphic-intensive programs or playing games or editing videos, the fan can be heard quite well as it is working overtime.
It’s not just fans that keep laptops cool but heat sinks and air vents are also found inside which do the job.
Apple’s new M1-powered MacBook Air is one of the rare laptops that doesn’t have fan. Apple has put an aluminum heat spreader, which dissipates the heat the system generates. As per Apple, it doesn’t matter how intense the task is, the MacBook Air will run silently only.