More memory and a bigger disk.

Given that it seems my life is doomed to cracking open seemingly impenetrable Macs, I opened up my new Mini to add memory and a larger hard disk. The base configuration ($580 mail order) includes but 1gB of RAM and a poncy 120gB HDD.

Quite why anyone would pay Apple $50 for another 1gB of RAM when I paid $12, or $100 for a 250gB HD when I paid $63, beats me but I can recommend MacSales as a reliable vendor of compatible parts, which is where I got mine. These are industry standard parts, just as used by every PC manufacturer, so don’t pay the Apple premium.

MacSales has a raft of installation videos showing how to upgrade your Mac and I strongly suggest anyone upgrading the Mini watch the relevant ones. The job is easy once you crack the case. Cracking the case is tricky. It is now quite clear to me that a whole department at Apple is devoted to making these machines as difficult to dismantle as possible and they were certainly on the ball when it comes to the Mini.

I have one substantial disagreement with the case opening video from MacSales. They show the use of a putty knife to separate the cover from the innards and the extremely fine seam on our Mini simply makes it impossible to insert such a tool without scarring or otherwise damaging the case. Instead, I used an unsheathed Stanley knife blade, sharp end inserted along its full length into the seam underneath – maybe to a 3/8″ total depth – and then levered outwards, using a handkerchief for protection, to start opening the case. Then I inserted a $2 plastic spreader (for glue and the like) in the crack thus revealed and proceeded to work around the periphery, popping the latches. A flat Stanley knife blade is both fine enough and strong enough to permit this approach, which will leave your Mini’s case undamaged. Apple specifically states that user mods to increase RAM and HDD size do not invalidate the warranty – a rare human weakness in a greedy corporation.

Once you have the cover off, the MacSales video is fine. The process of replacing the HDD with a nice new 250gB Toshiba and adding 1gB of RAM took me 20 minutes. Given the saving of $125 that values my time at $375/hour. I can live with that.

Now all I had to do was boot the Mini from the external (GUID formatted) Firewire drive back-up (USB would work also) and use Carbon Copy Cloner to make a complete back-up from the external drive to the internal one after first ‘initializing’ the internal one. Initialization is done using Disk Utility on your back-up drive, a process that takes 20 seconds. I opted for one partition only on the internal drive. While the backup executed, some 70gB of data, I made dinner!

I did consider installing a faster 7200 rpm drive for all of $6 more (the one I used is 5400) but as I am so sensitive about heat management in Macs I decided against it, reasoning that the 7200 must run warmer. Maybe that makes sense? Better safe than sorry.

After restarting, here is what the Mini reported:

Additional memory

Additional video memory

Additional storage

A couple of interesting points.

In the first picture the stock configuration is one 1gB RAM stick, so one slot is left open where you can add 1gB or 2gB. A total of 2gB is fine for my purposes. Forget about ‘matched pair’ memory and save your money. Just buy a 1gB stick, making sure it’s DDR3 and 1067mHz.

Note in the second picture that video RAM is reported at 256mB compared to the base 128mB with only 1gB of CPU RAM. The nVidia 9400M GPU ‘borrows’ video memory from CPU RAM and once you have 2gB or more of the latter (the limit is 4gB) the video RAM is maxed out at 256mB. That is the same as the amount on the nVidia 7600 GPU newly installed in my 24″ late-2006 imac – see yesterday’s column. Note also that the ‘Display Connector’ port reports no display is connected. The Mini is connected to a 17″ HP display (as shown) but the DisplayPort connector on the Mini is unused. The magic of this port is that, for the first time, the Mini can drive a 30″ dual-DVI display (like the Apple Cinema Display or HP 30″ screen) using a special cable from Apple ($100!). Until now that was a property limited to MacPros and the latest iMacs. It’s intriguing to speculate how well the 9400M card would drive a 30″ display. I would think it should be fine as the 9400M GPU is identical to that used in all but the costliest iMacs.

The third picture confirms that the 250gB Toshiba drive is correctly installed and working.

Intriguingly, the widely used performance measurement application, Geekbench, reports a score of 2781 for the Mini (2.0gHz C2D), thus equipped. My late-2006 24″ iMac (2.16gHz C2D) reports 2856, almost identical. While Geekbench is more CPU than GPU focused, this is encouraging and opens the possibility that the new Mini might make a fine photo processing platform. As a quick metric, Lightroom 2.4 pops up in 3-4 seconds (second and subsequent loads, the first takes 8 seconds), performance identical to that on my older iMac. Both Macs are using OS X Leopard 10.5.6.

As for cooling, the Mini is doing fine, even on GPU-intensive tasks. Maybe divorcing the LCD screen from the box really does help with cooling? That and cranking Fan Control up no sooner than the new Mini was removed from its shipping carton.

Timings and temperature readings:

Here are some timings using Lightroom 2.4, comparing the iMac with the Mini.

The machines are spec’d as follows:

iMac: Late-2006, 2.16gHz C2D, 7200rpm HDD, nVidia 7600 with 256mB GPU RAM, 3gB RAM.

Mac Mini: Early-2009, 2.0gHz C2D, 5400rpm HDD, nVidia 9400M with 256mB GPU RAM, 2gB RAM.

In each case 61 RAW files from the Panasonic G1 on a 2gB Class 4 Panasonic SD card (a pretty modest card) were first imported, 1:1 previews were generated with standard G1 Import Preset parameters conferred (sharpening, etc.) and then the same files were exported in JPG format (800 pixel maximum dimension) to the hard disk drive.

I used a Transcend SD/SDHC card reader (it came free with an SDHC card I bought a while back) which plugs directly into a USB slot on the computer – there are many faster readers on the market.

iMac 24″:

Import 61 RAW files and generate 1:1 previews: 719 seconds
Export: 271 seconds

Mac Mini:

Import 61 RAW files and generate 1:1 previews: 430 seconds
Export: 341 seconds or 288* seconds)

All in all a promising start – not that much to choose between the two.

The significantly better timing on importing with the Mini probably reflects the greater processing power of the 9400M GPU compared to the older 7600GT in the iMac (I ran the test twice to check my data).

* The Mini’s slower export time is attributable to its slower 5400rpm hard disk. Doing the same export to an external Firewire 400 7200rpm drive resulted in a time of 288 seconds, near-identical to that with the iMac’s 7200rpm internal hard drive. I would guess this could be further improved by using an external Firewire 800 drive. I did not bother testing this with a USB2 drive as USB2 is horribly slow. Let’s just be thankful Apple has seen the error of its ways and retained Firewire in the Mac Mini after trying to drop it from some of its notebooks.

I would counsel against paying the $150 premium Apple asks for the optional 10% faster 2.26gHz CPU available in the current Mini, if photo processing is your goal. I would also advise against buying the previous generation Mini which comes with the much slower Intel GMA950 GPU with a scant 64mB of video RAM. GPU performance is far more important in this sphere and you can only get the current Mini with one GPU, the nVidia 9400M. Save your money for a better lens for your camera.

As regards heat management, I’m focusing on those sensors which report the highest readings, and those are not the same sensors in the two machines being addressed here. Reporting readings from all the sensors confuses information with useless data.

Here are the related temperature readings – the CPU (green) rise reflects both the import and export phases:

iMac temperatures (internal fan at 1000 rpm fixed, two external cooling fans):

iMac temperature graph for import/export of 61 RAW files

Mac Mini (internal fan at 2200 rpm minimum, no external cooling):

Mac Mini temperature graph for import/export of 61 RAW files

No surprise that the iMac’s temperatures are well controlled, as it has massive external cooling, though it remains an object of frustration when one sees just how warm the GPU Diode gets despite all my additional cooling. The modest 6-9F temperature rise in the Mini (the fan spools up significantly, especially when exporting) indicates a well controlled thermal environment. This is very encouraging for not only is the temperature rise modest, the maximum temperature reached is still no higher than in the much modified iMac. I cannot find an ambient temperature sensor in the Mini but the room temperatures were similar for the two tests.

If the good thermal behavior of the Mini holds up in heavy use it may be a serious – and inexpensive – candidate to replace the iMac 24″ when it fails. Of course, I will have to find a good 24″ screen to go with it and it just kills me to think that the wonderful screen in the iMac will go to waste. Such is life.

One final note. Previous Minis have been poorly equipped compared to to costlier Macs. This is not the case with the current model which is the first to come with 802.11n high speed wireless and with a proper DVD/CD reader/burner, comically named ‘Superdrive’ by Apple when it’s the same $25 part to be found in every PC. So the machine is, at last, fully equipped once you add memory and a larger hard disk.

Cool at last.

I call my transformed iMac the Military Mac because it is so ugly that only the military could love it.

Simply stated, after replacing the nVidia 7300 graphics card with the 7600 I was no longer able to control the speed of the key fan of the three inside. The CPU fan. If you really feel the need to ask me if I connected it, please go elsewhere. That one cools the CPU, the GPU and GPU diode and the power supply. I tried a second card from ApplePalace.com with the same result, so there must be some deep seated incompatibility between the 7600 card and my 2.16gHz late-2006 C2D Intel iMac which came with the stock nVidia 7300 card. You know, the one Apple refuses to admit fries as soon as you look at it.

As earlier described here, I drilled 87 holes in the back of the iMac while it was gutted, covering them with wire mesh on the inside. These coincide with the placement of the GPU/GPU Diode radiators, the HDD and the power supply.

When I realized that I could not get the internal fan above the base speed of 1,000 rpm I placed a floor fan facing the holes and temperatures, as reported by Temperature Monitor, plummeted.

So I had two choices. Run a variable low voltage DC power supply to the internal fan which had lost variable speed control – a royal pain – or simply slap a couple of large fans on the rear to ventilate the radiators and power supply.

As dismantling the iMac was getting old, I decided on the latter, at least for now. $40 and four cable ties later, I had two small utility fans, running very quietly off the mains, pumping large volumes of ambient temperature air through the ventilation holes with fairly dramatic results.

While I had the case open I also added cooling slots to the power supply plastic sleeve, after first detaching it from the power supply, thus:

Slots in power supply sleeve.

The Military Mac reports key temperatures.
Circled area denotes export of 80 RAW files from LR2 to JPGs on the Desktop.

Easily the most demanding task I have found, as cooling goes, is the export of RAW originals to JPGs out of Lightroom. That works the CPU, GPU and especially the power supply mightily. Look at the stepped rise of the green CPU line circled on the graph – that coincides with the export of 80 RAW files to the Desktop. The rise is easily within spec. That green line falls once the export job is completed. Note also that the other temperatures are largely unaffected, especially the power supply and GPU-related ones. That is indicative of the success of my approach.

By the way, the HDD fan, which I can still control with Fan Control, is set at 2200 rpm and cools a 1tB Samsung 7200 rpm 3.5″ SATA drive, which replaces the bottom-of-the-line Western Digital 250gB one these machines were shipped with. Hey, Apple has to keep up those profit margins. The Sammy retails for around $100 – a great bargain. As you can see, it runs very cool.

Why do I go to all this trouble?

Well, first, I do not like to be cheated, and Apple Inc. has cheated me by selling a faulty machine whose design faults they deny. Back in my old school, when a boy behaved like that, we stuck his head down the toilet, after first making sure no monks were in sight, and flushed. The designer of these deserves no less. I was quoted almost $1,000 to (maybe) repair a 30 month old computer with a short warranty, only to have it fail again? That makes no sense and is a dishonest and a dishonorable business practice. The replacement card cost me $260 delivered to my home in California.

Second, the 24″ S-IPS LCD screen in the iMac is quite superb for photo processing, and I would like to keep using it for a while longer. And it is matte.

Third, based on the hundreds of these refurbished graphics cards ApplePalace.com told me they are selling there must be many other users of these machines who might benefit from reading this. ApplePalace.com told me there is no such thing as a new card – they came clean on that and stated these are all refurbished by Apple, despite their web site stating parts are ‘new’. Hard to know what to believe here.

I had to use two external fans as I could not find one large enough to cover all the ventilation holes. If I cooled only the GPU-related holes the power supply would go into thermal runaway, quickly reaching 160F regardless of room temperature. So I went wild, blew another $18 and added a second fan.

How does it look? From the front the modifications are invisible and the fans barely audible. From the rear? Ugh!

Military Mac, ready for desert duty.

Will it last? I see no reason why not. Do I want to do this again? Please. I have no doubt that I will eventually simply rewire the internal fan to a variable power source I can control and get rid of those ridiculous excrescences, but right now I am in the land of function over form.

Now do you mind? I would like to finally get down to processing some photographs as I joyfully anticipate a world with a fail safe OS and hardware to match, regardless of who actually makes the latter. One things for sure – there will not be a fruit on the front.

The last Mac we are buying for now.

The base spec Mini (1 year warranty) with an HP L1750 17″ monitor (3 year warranty) ran $800 delivered, including a Firewire 400 to 800 cable to allow restoration of all data and applications from the Firewire backup drive always connected to the machine. The latest Mini only has an FW 800 port, in addition to 5 USB sockets.

The Mac Fry

We have named this machine the Mac Fry as the previous one fried, I own McDonald’s stock (they make great fries) and we fully expect this one to fry in due course.

The Mini removes one significant heat source from the box – the LCD display – but then appears to compound heat management issues by cramming what’s left into an impossibly small cuboid. Still, you get the choice of a reasonably priced matte LCD of your choice, something unavailable from Apple whose LCDs are either overpriced (both 24″ and 30″ models) or come in glossy only (24″).

Because our FW back-up is fully bootable, you simply connect it to the Mini with the FW cable and it thinks it’s seeing another Mac, meaning you can use Migration Assistant to move data, applications and settings over fairly seamlessly. MA will promptly tell you that there is just one minute remaining for your migration to finish, which it will continue to do for the next hour. This error has been there as long as I can remember. I mean, how difficult is it to program the fifth grade arithmetic that has it that you divide bytes/minute by bytes of data to get time remaining and reflect the result in the progress bar? Bottom line is that this computer is barely out of its box and I’m already wondering what other basic errors have been made in its engineering. Well, there are plenty, if you read on. 

The base spec of the Mini is positively cheap. Only 1mB of RAM and a small 120gB HDD. I have a 160 gB notebook 2.5″ SATA HDD lying around (yes, from a dumpster MacBook we recycled a while back) and will swap for that as, at 90+ gB, the Mini is a little too full for comfort. First I have to order another 1 gB of RAM (all of $10 though Apple will charge you many times that) and the Mini will hold up to 4 gB (2 x 2). A total of 2 gB is fine for just about anything, including Lightroom. The other specs are fine – the machine has Firewire and a Core2Duo 2 gHz CPU and the allegedly better nVidia 9400M GPU.

The Mini sports that awful mini-DVI video port with a non captive plug, and comes with a Mini-DVI to DVI adapter, which is just what the HP display requires. Just don’t move the Mini about too much because this adapter is just waiting to fall off. There’s Mr. Jobs’s ‘form over function’ obsession again – in a rear panel connector, for heaven’s sake. Did someone beat this guy for untidiness when he was a kid or something?

So let’s get to the big issue – heat.

Heat killed the 20″ late-2006 iMac and took my late-2006 24″ iMac to death’s door, whence I just saved it.

Bottom line is that the GPUs in these, once cooked, start to deteriorate slowly thereafter, with growth of screen artifacts and more frequent beachballs, until the whole thing gives up the ghost.

Well, at least the Mini is separate from the screen but everything is crammed into the tightest imaginable space and, as the saying goes, “Trust, once lost, is seldom regained”. And Apple hardware, simply stated, has lost my trust.

So after Migration Assistant had done its thing, and after I refused to upgrade Leopard to 10.5.8 (better the devil you know – 10.5.6), I immediately checked iStat, Temperature Monitor and Fan Control to see what the heat story was.

Well, as Pete Townshend once put it, “Meet the New Boss, Same as the Old Boss”.

It runs too hot.

Here are the readings after the Migration Assistant process – one which is mostly CPU- and HDD-intensive. Meaning no GPU labor was involved.

Now while this Mini has yet to fry, these readings are higher than those at which the 20″ iMac would show artifacts – although it had probably fried by then. As you can see, Apple continues to insist on running the (single) cooling fan in the box at ~1,000rpm, despite these elevated temperatures. Now I’m beginning to think like a conspiracy theorist ….

A second with Fan Control and the minimum fan speed was increased to 2,200 rpm (it remains inaudible) and a few minutes later here were the readings:

By running the fan up before frying I’m hoping to nip the issue in the bud this time. Most devotees of Fan Control, like me, come to it after the patient has already passed the point of no return. Anyway, for an additional 15-20F cooling, I would rather buy a new fan in a year at $50 than a new Mac for $600 and, I can assure you, the latter is not an option.

Here’s a heat trend graph for the three hottest sensors (there are several others) – the immediate drop at the start reflecting the increase in fan speed from 1,000 to 2,200 rpm:

The blip after the early drop reflects the use of iPhoto to download and process holiday snaps, so you can see that GPU use immediately raises CPU (Northbridge) and Airport card (Wireless) temperatures; the Airport card must be close to the CPU in the box as, obviously, no wireless effort was required to process pictures downloaded using a wired card reader. Another piece of down right execrable engineering by Apple. Having a fragile wireless card act as a de facto heat sink will not put the designer in the pantheon of great engineers.

I am reminded of the multiple Airport card failures my ante-pre-penultimate (for you lawyer schmucks reading this who despise clear English – ‘third from last’ for those of you with a spine and morals) MacBook suffered. Now I’m beginning to understand why, thanks to Temperature Monitor.

Temperature Monitor does not report a separate GPU heat sensor so, if that is right, I assume that the GPU and CPU are integrated (much in the same way as the older Intel GMA950/3100 was integrated with the Core2Duo in earlier MacBooks). So GPU heat is a proxy for CPU heat and vice versa. To cut to the chase, you can treat the ‘Northbridge’ temperature as being identical to the GPU temperature.

Any comments that I am running components at sub-optimal temperatures will be treated with the respect accorded all trash. Save your time and forget it. Cooler is always better.

Now I have the exciting prospect of cracking the Mini’s case to look forward to, so that I can install the additional RAM and bigger HDD. Oh! joy. You can read all about that here where, in addition to adding RAM and installing a larger hard drive, I also present the results of real world import and export timings and temperatures using RAW files from my Panasonic G1 and Lightroom 2.

And I have a jumble of cables to hide while I’m at it.

A nerdy note on video RAM:

The nVidia 9400M GPU used in the Mini does not have video RAM of its own. Rather, it ‘borrows’ RAM from the CPU’s RAM, probably explaining the occasional slowness I have noted with just 1 gB of CPU RAM installed. By the time OS X and the 9400m have taken their chunks, not a lot is left for applications.

The default ‘borrow’ is limited to 128mB. I have read that the 9400m can ‘borrow’ up to to 256mB of video RAM which it can do if the Mini is maxed out to 4gB of CPU RAM. Wikipedia says that once you have 2gB or more of system RAM, the GPU RAM increases from the base 128mB to 256mB. Nice! The relevance of this is that more video RAM generally means faster image rendering in applications like Lightroom. Either way, increasing minimum system RAM from the stock 1gB makes sense. The 1gB in our Mini is reported as occupying one of the two RAM slots by System Profiler, so adding another 1gB ($12) or 2gB ($45!) is sensible. You need a putty knife to crack the case and thereafter adding the RAM is trivial. The whole thing can be done in 20 minutes.

Adding a bigger HDD is harder. I address that and provide some performance and temperature measurements here.

There are fine videos on the web illustrating both tasks.

Theories abound.

One thing I learned early on in my years in America is that the country has a marked taste for conspiracy theories.

While the average Briton, Frenchman or German will write off government bungling as so much incompetence by the least able in society who could not get a real job, the American will, likely as not, take you aside and whisper in your ear “It’s a conspiracy, you know”. I have learned that the best course of action in these cases is to nod wisely, claim other commitments and exit stage left.

As it is, I have yet to meet one conspiracy theorist who is remotely successful. Many of these fellows, and they are almost always men for some reason, seem to be suffering from PTSD and probably spend their spare time making crank calls to right wing radio talk shows. They are, after all, the only ones who can get past the censor who screens the calls.

You know the types. “Castro killed JFK”, “We never landed on the Moon”, “Exxon controls the world”, etc., etc. Nuts. In a world where everyone lusts for their moment of fame, loves to talk and craves publicity, not one of these conspiracy loons has managed to explain how the secret of each conspiracy has been kept by so many for so long, undiscovered. It does not solve.

My point is that my email box filled with conspiracy theories based on my recent awful experience of having not one but two 30 month old iMacs die. “Designed to fail”, “Forced replacement policy”, “Jobs needs coin for a new liver/heart/spleen” – you get the idea. And Elvis lives. Right.

The realities are, I’m afraid, far less likely to sell newspapers. Lee Harvey Oswald was a sharpshooter with awesome scores, Neil Armstrong brought back some moon rocks and there’s a reflecting mirror on the moon from which we bounce laser beams testifying to his arrival, and Exxon controls under 2% of the world’s crude. As for Jobs, he owns 7% of Disney so I doubt he will have to wait too long for that new organ or have any difficulty scraping up the cash.

Elvis, however, is almost certainly alive.

So why do Macs, at least the ones I have owned, fail early and often? It’s not like I’m a careless teenager burning them up with moronic computer games. The common thread has been heat. After the cool running G4 iMac and our equally cool running G4 iBook, both 7 years old, and both still in daily service with nary a problem between them, everything since has failed. My first MacBook had graphics issues. The second one got so warm that toasted nuts (like the guys making those crank calls) were the order of the day, then after two Airport cards made no difference to the intermittent wifi, was finally replaced at no charge by Apple (after I had wasted countless hours on getting it fixed). The G5 iMac was sold after nascent heat issues showed up and the story of the 20″ and 24″ late-2006 iMacs is documented all too well here. The second Airport Extreme router I owned doubled as a frying pan for which honor it competed with the AppleTV. All gone.

The reality, I suspect, is as mundane as the simple fact that the modern Mac is poorly designed to manage heat. The emphasis is all about looks and so long as it works in the warranty period, who cares? Like modern cars.

Take a peek inside an Apple store – beautiful design, rows of glossy screens screaming ‘buy me’, chic iPhones waiting to convince you that you are not just another overfed American who hasn’t seen his privates in years – if there is a conspiracy here it’s an obvious one. It’s called short term profit.

The slim and trim Apple Geniuses waiting to favor you with reverse condescension while they make $10 an hour. The soft sell of implied superiority. It’s the very best of American marketing. When did you ever read one of those sycophantic, advertiser supported ‘independent Mac magazines’ survey users of 2-3 year old machines for their experiences? In their advertiser supported hell of ‘free hardware and write nice about us or we will can you’ nothing ever breaks. Be nice or El Jobso will fix you good.

An even worse problem for a growth company with public stock like Apple is what I call the ‘hamster treadmill’ problem. Keep running faster or you fall off. Every quarter’s results have to beat understated expectations and promise yet greater numbers a quarter hence. Once day the whole thing will come crashing down like a pile of cards but, until then, we make hay.

No? Well there were 20 companies in the Dow in 1896 when the index was started. Only one survives today – GE. And it was kicked out not once but twice early in the twentieth century when it soiled the sheets. Nothing is forever.

And if you don’t believe that, I’m from GM and I have just the car for you. Why, it does 230 mpg!

So I’m not all that mad at Apple for making crappy hardware. But I would like to get even! As that bumper sticker I saw on a Fiat in NYC years ago reminds me “You breaka ma car, I smasha ya face”.

The first iMac we bought, and the last reliable one*

* Hint: It’s the one in the middle.

At least let’s be grateful for OS X. This photographer most certainly is. Apple got the Unix code free from Ma Bell and stole the graphics interface and mouse from Xerox who were too dumb to know what they had. How’s that for a conspiracy theory? And it remains the one part of the Mac ecosystem which just works to this day.

One way of determining reliability.

How many times have you read words like this?

“Oh! gee, they just replaced everything, no questions asked, in my dead Mac. AppleCare rocks – everyone should have it”.

How about “Why the hell did it blow after 15 months and why should I have to pay another 20-30% on top of the price of an already premium priced product? And what about my time and data and productivity lost during the repair period? Shouldn’t Apple be paying me?”

Welcome to AppleCare.

I addressed the extended warranty business back in 2008 explaining why, for most reliable devices like cameras and TVs, the cost of an extended warranty would accomplish but two things. Rob the buyer and enrich the seller.

A warranty is nothing other than an insurance contract, so its pricing reflects three things:

• The likelihood of failure of the warranted item
• The cost of parts, labor and shipping to repair
• The required profit margin

Now it’s hard to put a price on the parts and labor component but if, as a first approximation, we assume that the ratio of that cost to the selling price of the item is constant over a large population (some Macs need a costly new screen, some a screw or two – it averages out) then what is left is the profit margin – assumed constant – and the likelihood of failure, which is an unknown variable.

So if you buy those assumptions, simply looking at the ratio of warranty cost to selling price gives you a metric which indicates the likelihood of failure – the unknown variable.

How do these data stack up for AppleCare which extends the new item’s 12 month warranty by an additional 24 months?

Using the lowest selling price of each item (except for the iPhone where the much more popular 3GS model has been used), the ratio of AppleCare cost:selling price is as follows in rising order:

• Mac Pro – 10%
• iMac – 14%
• Apple TV – 21%
• MacMini – 25%
• MacBook – 25%
• MacBookPro – 29%
• iPhone 3GS – a whopping 35%

These are troubling statistics from which I glean the following:

• The Mac Pro is dead reliable (can you say ‘proper cooling’?)
• Only a fool buys an iPhone with or without warranty
• Now I’m really worried about having bought that MacMini to replace the FriedMac
• The MacBookPro is a real dog
• By Apple’s reliability standards, the iMac is one of the most reliable products they make. This is no consolation.

Another great reason for building your own Hackintosh – check the build list. No single part costs more than $100 with the exception of the exotic $250 Core 2 Quad CPU – how many properly cooled CPUs have you known to fail? All the parts come with a one year warranty and all cost less than one AppleCare insurance policy …. so when they fail in month 13, you throw them out and buy a newer, better replacement. For $100. And you don’t have to ship the whole 50lb megillah back to Mr. Jobs for repair. What’s not to like?

But you have to give it to the merchant huckster in charge. He gets to look the good guy (“AppleCare looks after you, no questions asked” – no need to ask at those margins), charges you up the kazoo and makes huge profits on the insurance business in the process.