My Quixotic Quest for Quietness: Keeping My 'Book's Fans Spooled Down
I've been fighting a losing battle on both my Intel and PowerPC laptops trying to keep the cooling fans spooled down. Nostalgically, I recall the days of mostly silent computing, running my old Mac Plus booted from a floppy disk and, later on, my blessedly fanless PowerBook 5300 from a RAM disk with the hard drive spun down. That was blissful - at least the lack of fan and hard disk noise.
Performance is another matter. Speed generally means more heat generated, although there are notable exceptions, such as with solid state drives.
Quiet with Leopard
Actually, my current Unibody Core 2 Duo MacBook was the quietest laptop I'd had since the RAM disk happy 5300 - but only as long as I ran Mac OS X 10.5 Leopard on it. Booted from Leopard, it typically ran well below the cooling fan tip-in threshold, and its 160 GB 4200 RPM hard disk drive buried in the sound-deadening slab of its unibody aluminum chassis was barely audible.
However, since upgrading to OS X 10.6 Snow Leopard, it's been a constant struggle to keep the MacBook's cooling fan quiet. A least it's not as raucous as fans in older Mac laptops (maybe the unibody effect again), but with my typical suite of production applications open, it idles at about 78° to 79° C, just a degree or two below the fan-toggling point, so it only takes a minimal intensification of processor activity to trigger a fan spool-up.
I had hoped in vain that this issue might improve with Snow Leopard incremental updates, but the converse obtains, if anything. It seems to run a bit hotter in versions 10.6.6 and 10.6.7.
Still fans, you say? Yes, but the Chill Mat's two USB-powered, large-diameter, slow-turning cooling fans are much quieter than the MacBook's internal fan, making about the same amount of noise as some hard drives and at a lower, less irritating frequency.
The latest iteration of the Targus Chill Mat for Mac is faced top and bottom with soft, breathable nylon mesh that is comfortably gentle on your laptop's bottom-side and to your lap - or whatever other support surface upon which it rests - protecting from scratching and chafing as well as insulating from and reducing heat.
In terms of looks, the Targus Chill Mat for Mac unit is quite aesthetically attractive with its mirror-smooth "Lunar Grey" high-gloss plastic finish and understated styling that nicely compliments Mac laptops' industrial design
Its two single-speed fans, controlled by a pushbutton on/off switch, push cooling air upward toward the bottom of the laptop, targeted, according to Targus, at Mac notebook hotspots revealed by engineering studies.
Power is supplied by one of the computer's USB ports via a supplied 28" USB cable that plugs into a port on the back of the Chill Mat. The fans don't draw a whole lot of power and are claimed to diminish a battery charge life cycle by roughly 15 minutes, and that's no issue at all when plugged in to wall current.
The Targus Chill Mat for Mac fulfills its intended roles. The cooling fans can lower the operating temperature of the notebook noticeably, and when used in lap desk mode, it's much more comfortable than operating the laptop directly on your thighs - for enhanced comfort and stability as well as thermal benefits. It adds another layer of complexity, but it beats listening to the MacBook's internal fan and is a relatively low-cost solution
The Targus Chill Mat for Mac lists for $34.99 and is covered by a 1-Year Warranty.
Heat from PowerPC 'Books
Moving along, it's no longer blissful silence with my workhorse Pismo either. Back in the day, the Pismo's cooling fan might have cut in once in a while on the very hottest summer days, but most of the year, at least here in Nova Scotia, you wouldn't have known that the computer had a fan.
No longer. Now that the Pismo is hotrodded with a FastMac 550 MHz G4 processor upgrade, 768 MB of RAM, and a 5400 RPM Toshiba hard drive, the fan is heard from nearly daily, and it's much noisier when it does run than the fan in the MacBook.
Part of the problem is browsers. I usually have three open. I love TenFourFox for its speed and feature set, and it has extended the useful Internet life of our old PowerPC machines for a bit longer, but it does seem to be a bit of a resource hog. OmniWeb 5.10.3 is evidently less covetous of RAM than TenFourFox, but it is also slower, and Opera is fast but no longer a happy camper on PowerPC, so it seems I'm stuck with the intermittent fan cacophony.
Actually, I still find old Netscape Navigator 9 to be the most satisfactory browser for OS X 10.4 Tiger on PowerPC. It's decently speedy, stable, and not especially resource-hungry, has lively Finder response, but with development having been terminated more than three years ago, I'm leery about potential security deficiencies.
The browser issue in general is what's probably going to sink PowerPC Macs as production platforms eventually. Even the TenFourFox folks concede that the future is limited and the curtain is dropping on the PowerPC era.
Hard to say exactly when the accretion of quotidian hassles, incompatibilities, and annoyances like the fan cycling will reach the point that I'll abandon my beloved Pismos, but I perceive that it's likely not far off now.
Charles Moore has been a freelance journalist since 1987 and began writing for Mac websites in May 1998. His The Road Warrior column was a regular feature on MacOpinion, and he is a news editor and columnist at Applelinks.com. If you find his articles helpful, please consider making a donation to his tip jar.
Other articles by Charles W. Moore
- Apple's Great Hebrew Support, AirPort Express Silently Upgraded, Pismo G4, and More, Charles Moore's Mailbag, 2012.12.03. Also a WindowShade replacement approved by Apple, upgrding a 15" MacBook Pro, and three 13" MacBooks.
- Is There a Cure for a Smelly Mac?, Miscellaneous Ramblings, 2012.07.30. For those suffering from Multiple Chemical Sensitivity, gases let of by a new computer can be no end of trouble.
- Optimizing PowerBook G4 Performance, TenFourFox May Run Faster with NoScript, and More, Charles Moore's Mailbag, 2012.07.18. Also pros and cons of Linux on G3 PowerBooks and iPhoto 11 no longer updating in Snow Leopard.
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