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crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Jake Devincenzi
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| [* black] Apple's iterative streamlining is again in effect, with a slimmed down and beautified CPU heat sink. | |
| [* icon_note] We compared this new heat sink to last November's bigger, beefier, and more securely-fastened [guide|11936|spidery mess|stepid=42506], and started to wonder what changed to allow such a slender 'sink. | |
| [* black] The truth was alarming—***the CPU is soldered in place*** on the logic board, and cannot be removed, replaced, or upgraded. | |
| [* icon_note] As far as we can tell, this is the [http://www.everymac.com/systems/apple/imac/imac-aluminum-faq/imac-intel-aluminum-processor-upgrade-instructions.html|first aluminum iMac] to have a soldered CPU; it's a silent, but clear, shift to even poorer iMac upgradeability. | |
| + | [* black] 21.5-inch: 2.9GHz corei5 CPU is upgradeable and the double side sticky strips for the the 2012 model work on this late 2013 model as well. |