Apple this week released a small software update to the MacBook Air's system management control (SMC) that it hopes will put an end to intermittent freezing issues that have plagued some early adopters of the ultra-thin notebook.
The fan, according to several users posting to Apple's support forums (1, 2) over the past two weeks, has failed to perform adequately thus far, resulting in random lockups that render the Air unresponsive for periods of about 10 to 15 seconds at a time, if not longer.
In most cases, the intermittent freezing would occur under CPU intensive operations such as digital video playback, downloading content from iTunes, and the use of resource-intensive applications such as Safari or FireFox.
In these instances, the MacBook Air's internal temperature would rise to abnormal levels, causing one of the system's primary processor cores to power down completely. The weight of the operations would then be shifted to the single remaining core, which would be unable to handle the load, eventually causing the systems to stutter and lock up repeatedly.
"I called Apple Customer Service in Italy, they said they knew about the problem, asked me to run some 'resetting' sequences, but the problem is still there," one Air owner wrote last week. "I really think it is a 'overheating' problem, it only happens when running heavy applications, like video playback or video chatting (skype)."
The issue has been particularly troublesome for Air owners who reside in warmer climates, as the surrounding environmental temperatures serve only to compound the overheating problem.
"Same behaviour here with my MacBook Air running 10.5.2," said another Air owner. "Things seens a bit worst to me because I'm in Brazil, São Paulo. This means 86º F is a ordinary day."
Unfortunately, a couple of owners report that they are unable to apply this week's MacBook Air SMC Update 1.0 because their MacBook Airs shipped out of Apple's manufacturing facilities with the update already applied. These users continue to report freezing issues.
"I download the the update but it told me I was already up to date," one said. "Fingers crossed for a fix soon."
Separately on Tuesday, Apple also released via iTunes iPod shuffle firmware version 1.0.4, which addresses a few bugs and enhances support for the just-release 2G version of the player.
58 Comments
I downloaded the MBA update to my MBA, but it said that I was up to date as well. I got mine about a month ago so maybe this is only for the real early owners?
Anyone else have their non MacBook Air MacBook freeze for a few seconds when running hot?
Oh dear oh dear oh dear.
Thin, hot and bewildered!
The iMac revisited.
New MacPro's don't wake from sleep.
Graphic glitches in the MacPro ATI 2600 card
Freezes in the same card models.
MacPro nVidia 8800GT slower than ATI 2600 in pro apps
MacBookPro sleep issues.
MacBook flickering display
MacBook trackpad delay
MacBookAir Freezing
iMac 24" (white) displays breaking down (mostly just over the standard one year warranty period)
iMac 20" (alu) condense forming behind the glass cover of the display.
Fifteen years ago you know that your Mac was going to last longer than that was necessary, now a day's you are lucky if you can keep it running for three years! And o o o if you didn't buy AppleCare.
It is a really BIG SHAME. This is going to hurt Apple significantly in the nearby future.
blah blah blah.
Yeah, you really should stop.