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crwdns2934243:0crwdne2934243:0 mayer

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You currently have the middle level machine, the RAM is maxed out ar 16GB
'''Apple iMac "Core i3" 3.2 21.5-Inch (Mid-2010) Specs'''
Identifiers: Mid-2010 - MC509LL/A - ''++iMac11,2++'' - ''++A1311++'' -  ''++2389++''
Maximum MacOS:X 10.13.x*
https://everymac.com/systems/apple/imac/specs/imac-core-i3-3.2-21-inch-aluminum-mid-2010-specs.html
Taking it to the '''"Core i5" 3.6'''  will only give you a 15% increase in benchmark.
Your best best will be going to an SSD drive. You have a [br]
+
Serial ATA (3 Gb/s) bus so you will need a drive that is backward compatible.
+
+You will also need the OWC thermal sensor to prevent run away fan issues. Here are your options:
+
+https://eshop.macsales.com/upgrades/imac-21-5-inch-mid-2010-3.2-ghz/internal-drives

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crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

You currently have the middle level machine, the RAM is maxed out ar 16GB

'''Apple iMac "Core i3" 3.2 21.5-Inch (Mid-2010) Specs'''

Identifiers: Mid-2010 - MC509LL/A - ''++iMac11,2++'' - ''++A1311++'' -  ''++2389++''

Maximum MacOS:X 10.13.x*

https://everymac.com/systems/apple/imac/specs/imac-core-i3-3.2-21-inch-aluminum-mid-2010-specs.html

Taking it to the '''"Core i5" 3.6'''  will only give you a 15% increase in benchmark.

Your best best will be going to an SSD drive.  You have a [br]

Serial ATA (3 Gb/s) bus so you will need a drive that is backward compatible.

crwdns2915684:0crwdne2915684:0:

open