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What RAM do you have in it now? This is what mine is running: RAM Type: PC3-8500 DDR3 ECC Min. RAM Speed: 1066 MHz Details: Uses “1066 MHz DDR3 ECC SDRAM” (PC3-8500) modules. UPDATE Yes that faster RAM will work fine. However it’s not going to give you much bang for your buck and mixing RAM speeds is not a good idea and can cause issues. So you would need to pull the older RAM. Your BEST UPGRADE PATH right of the bat is to go to an SSD drive. OWC carries an adaptive drive sled: https://eshop.macsales.com/upgrades/mac-… The size of the drive is according to your storage needs. See how much space you are currently using on your boot drive. I started with a 256 but within a month moved to a 500GB. But I have two other drive I use for storage and another one for a Time Machine Backup. CPU upgrades Oh Yes! This machine can be turned into a fire breather and blow away the newer models. Let me know if want more info on doing this.
You may need to cross-check your exact model with an actual hardware you have. Accordint to everymac.com, these models were coming with TWO dual core Xeon CPUs (5150). So, officially you may upgrade your CPUs to dual Xeon 5300 series (they are directly compatible with 5100 series). I think doubling your cores number will be more beneficial. And price-wise, you may find then on eBay for about $50-60. Another “booster upgrade” could be adding more memory (maximum possible) and replacing your HDD to either straight SSD to “hybrid SSD”. However you should consider the fact, that this version supports only SATA2 (3.0 Gbps). So, you may need to research, if there are PCIe SATA controllers available to increase your HDD performance. Good luck, Mike | Headset Adapter Co.
