^^ You've been unlucky. For every faulty machine they'll be 100 good ones, but of course that means that if you are the 1% that get a duff box you've still got a 100/1 chance of getting a second duff one as a replacement. Considering how many of these things Apple sell some people will be that 1 in 10000 who get two duff machines in succession, and on this occasion it's you unfortunately.
Sorry, but it's not 1 in 100 and I really wish people would stop making this percentage up. Nobody has absolutely any basis for this claim. The simple fact is that compounding probabilities (which you do mention) tell you there is basically no chance you will get two bad ones in a row assuming 1% defect rate. 1 in 10000 is just such a low probability, especially given incidence rates of multiple returns on here (in the dozens), and that there really aren't enough iMacs sold for the amount of reports on MacRumors to be so high, AND you have to account for people actually detecting the problem AND knowing about MacRumors AND bothering to post. Now factor in the people who have returned not two, but 3 or 4 of these and you can't possibly tell me that only 1 out of every 100 have this defect. Three yellow iMacs is a 1 in a million chance; four, one in a billion. 1 in a million chance basically means ZERO on an individual basis, and could mean essentially zero if the amount of iMacs sold was low enough. Assume they have only sold 1 million 2010 iMacs (They seem to sell 3M total Macs a quarter, so this seems fair) since their release, yet there are people returning FOUR of them for, I assume, entirely brand new iMacs from the store or BTO. (See example below for instance)
Couple this with actual, observed data, like walking into an Apple Store and seeing every iMac in the store exhibit the issue. That's more like a 99% defect rate. But, FYI, I am not claiming any such rate, nor do I care to conjecture.
Early 2010- 3 Returned for refund due to yellow screen
Mid 2010- Kept the 1st i7 as it was perfect
This gives me some hope. Very few people can detect the problem apparently, given how many people think their screen is perfect on here, and even fewer have finally received one in which the yellowing cannot be detected.
I'm on my 4th - mid 2010 21.5 base model.
1st - Yellow screen bottom right corner
2nd - same issue but darker yellow
3rd - Yellow tint, high pitched dog whistle, cluster of dead pixels
4th - Slight yellow in upper right corner, otherwise perfect. Keeping it as it is for 6-11 months then will get screen replaced under warranty when they've hopefully solved the yellow tint for good.
🙂
That was originally my plan too... But now I'm going to be forking over ~$2800 for a new one (SSD option, etc.), attempting a repair on this one and then selling it.
So:
27" i7 iMac (Late 2009)
Repairing under warranty for:
- Noisy PSU
- Yellow Screen
- Buzzing Speaker (Developed very recently)
- Magic Mouse is defective (Started cutting out recently)
- Keyboard came defective and I switched back to my wired keyboard.
And then selling it. Buying a 2010 i7 with SSD, so we'll see how that goes when it happens. Might be playing the screen lottery whilst using my old iMac through the process. Then once I'm finally pleased (if ever) I'll be starting the repair process on this computer. Or maybe I'll just get fed up and return the new iMac. We'll see.