By the way, I cannot recommend Experimac for any Mac repairs. They are NOT Apple certified, you should know this up front. They took my 15” MacBook Pro to repair a keyboard/backlight/power button issue. Said it would be finished by the following weekend. No phone call to tell me it was repaired the following weekend, when I called, I was told the part had not been ordered, it WOULD be ordered the coming week, would be repaired by the following weekend. I called on Saturday (now 2 weeks later) in the morning when I didn’t hear from them. Was told I would get a call back from the manager/owner later. No call. I went there on Monday, and at noon, all lights in the store where off and the door locked…at NOON. Was told the “repair failed”. I was given my MBP back, unrepaired. Took it to Apple, they complained that all the screws ( many were missing) were STRIPPED on the grid that fastens the keyboard to the backlight unit. Thanks Experimac. You suck, and I’ll tell everyone who’ll listen to never visit your store.
I actually swapped drives...with a mid-2007 20" and a mid-2011 21.5" iMac...the newer iMac runs rings around the older 20" speed-wise, but I fear that because the drive is not Western Digital like the original inside the 21.5", that's why the fans run pretty much non-stop now...I can put it to sleep, and the fans quit for a while, but eventually they start up again, and they can be fairly distracting in a quiet room...either have to replace the drive with one that has the internal temp sensor, or live with the fan noise...