|Quoting Geezer (Reply 17):|
I'm pretty sure it's the logic board that went out, rather than the power supply;
Could be, but the power supply still remains in the running. It is less complex, but it operates under higher load and is exposed to surges in the grid (such as ones caused by lightning strikes somewhere close to the line or switching spikes). And, of course, simple defects like a faulty power cable (you can just switch it for another one to check) or even a worn-out power push button are still possible as well. I couldn't say for sure without looking into the actual machine.
|Quoting Geezer (Reply 17):|
Something you need to take a VERY close look at..........cooling; the faster your processor, the harder your apps make the whole system work.......the more HEAT you produce, and HEAT KILLS computer "innards" ! Do anything you can to lessen the heat, including even a small external fan.
Unless you restrict the air vents on the bottom and on the back, the machine should still be able to cool itself properly. You basically can't mess up a Mac's cooling apart from that. It would normally take defective heat sensors, fans or other components to cause overheating as a secondary symptom.
Yes, the AppleCare Protection Plan tops up your Mac's standard 1-year warranty to a total of 3 years from purchase; It also extends the default 90-day phone support to the same 3 years.
AppleCare for mobile devices and Apple TV is 2 years in total, but the fee is correspondingly reduced.
It is basically an insurance policy with an add-on support package; As with any insurance, you'll see a net "loss" if you won't need it, but a net "gain" if you do. It's a matter of good or bad luck in either case.
|Quoting Braniff747SP (Reply 19):|
Not in the US. In Europe there are several laws that require the warranty to be longer... in the US, it's twelve months. If you buy another two years it gets added on to that.
It's a bit more complicated than that – in Germany, for instance, there is an EU-mandated warranty period of 2 years (yes, that
only within the first six months the burden of proof that a defect is not due to a manufacturing defect is on the dealer
who sold the product (not on the manufacturer
!); For the remaining 18 months, the burden of proof falls to the customer, but again not relative to the manufacturer but to the specific local dealer (which can be a pro or a con, depending on circumstances).
AppleCare is a full-on manufacturer's
warranty plus support extension which also applies worldwide – you don't need to get the product back to the german store where you bought it (which might not even exist any more).
The legal minimum warranty is something very different from what you get from manufacturers, and again from what you can get via third-party insurance firms. Each of them has its respective advantages and limitations.
My AppleCare coverage vs. Apple directly runs in parallel to my legal coverage vs. the dealer. They are not exactly the same and in case of a defect there can be reasons to pursue one or the other (although AppleCare is usually the less difficult way). But after the legal coverage runs out, only AppleCare remains.
In other countries with shorter minimum warranties AppleCare can make an even bigger difference.
|Quoting cedarjet (Reply 18):|
The 27" is bloody huge, it's like squinting into a tanning lamp. Who has a big TV like that and sits 8" from the screen? I believe you guys when you say how much you love the 27" but for me, it's way too much and actually hurts my eyes! Very happy with my 21.5" and for many it's the right size.
Of course its brightness can be reduced to a level that's ideal for your eyes as with any other display (actually even farther down than most displays). So that is definitely not a real concern.
For me its primary advantages are:
• I can have three full-size browser, source code, PDF or command line windows next to each other – this has made printing completely redundant for me, since all page-based documents are perfectly readable without zooming or scrolling within pages and even longer texts or sources are easy to keep in view.
• When viewing photos even just made with my iPhone (8 MP), the pictures still just fit at 56% – but at 100% at least I can see more than half of them on either axis at full detail resolution, which is great progress beyond smaller-resolution displays. With a "proper" camera it's even more important to have as much detail and as much area at the same time, as Charley (Geezer) knows well.
• I still have a secondary 24" (1920*1200) display connected which extends the desktop even further – it keeps the main 27" (2560*1440) iMac display free of menus, palettes, the Dock and other non-document stuff (such as TV) and also provides space for additional windows when I need them. The only thing better than having one
high-resolution display is having more than one
• Working with such a large display is more like looking through a window than through a periscope (as with smaller displays), to a noticeably better degree aproaching the actual field of view. Much of the previous constriction just falls away.
• Colour reproduction is factory-calibrated on the newer Apple displays (both Macs and mobile devices) and still quite decent on the older ones, so subjective image quality is very good.
• At this size, a panel with good viewing angles is a must, because even when looking at it head on at normal viewing distance (about 80cm), I already see its edges at a noticeable angle. So the IPS panel in the iMac does in fact cost a bit more, but a cheap TN panel would be practically unusuable.
It is perfectly reasonable for many people to choose a smaller display for a variety of valid reasons, but display brightness is certainly not one of them; And I would generally recommend at least a good look at the bigger one before making the decision.
I personally can make good use of any additional pixel at my disposal, but neither my personal preferences nor my needs for my line of work (often complex digital development) necessarily apply to everybody else.
[Edited 2013-05-23 11:39:22]