Upgrade E6550 to Q9550S Tags: CPUs Core Dell Quad Last response: April 13, 2010 1:56 AM in CPUs Share babo April 12, 2010 6:55:30 AM I have Dell Optiplex 755 with Core 2 Duo E6550 CPU - 1333MHz, LGA 775. Can I upgrade the CPU into Core 2 Quad Q9550S - 1333MHz, LGA 775? The specs and comparison of the two CPU is here: http://ark.intel.com/Compare.aspx?ids=40815,30783, According to the Dell documentation the motherboard supports Core 2 Quad , 1066 MHz CPU. (http://www.gesi.net/pdf/Dell_Optiplex755.pdf) More about : upgrade e6550 q9550s babo April 12, 2010 7:14:50 AM I have found the answer and this thread can now be closed. Stardude82 a b à CPUs April 12, 2010 7:18:30 AM Yes, it should work, just make sure you get the latest bios revision from Dell. Generally, its best not to post OEM specific questions here... most people will try to sell you on a motherboard swap with a change to an AMD CPU. That being said are you sure you want to upgrade with a $350 CPU? If you have a tower, really consider moving to an 1156 or AM3 solution. Related resources Upgrade Q9550S to i52500k ? - Forum Notebook processor upgrade possibilities - Forum E8400 Processor upgrade from e6550 - Forum Does Q9550's cache beat an E7200 @ 3.8G - Forum Gaming - stay with E6550 , or upgrade to q93/450/E8500? - Forum Can't find your answer ? Ask ! Get the answer babo April 13, 2010 1:06:38 AM Thanks for the reply and suggestion dude. saaiello a c 133 à CPUs April 13, 2010 1:51:54 AM You can delete the thread yourself if you click edit this message and then check delete and submit. mthomas99 April 13, 2010 1:56:15 AM <a href="http://www.onlive.com/partners.html">here</a> Can't find your answer ? Ask ! Publish Related resources: Forume6550 upgrade suggestions ForumIntel E4300 Heatsink & Fan on a E6550 CPU ForumOverclocking e6550 2.33 GHz - suggestions? ForumUpgrading from E6550 ForumUpgrading from E6550 ForumUpgrading my E6550 ForumIntel E6550 with DDR3 mobo ForumGtx560ti abd e6550 . Just how bad will the bottleneck be? ForumE6550 vs E6500 ForumOpinions and price of this PSU........... ForumCan I upgrade? ForumUpgrading to Thuban? ForumVideo Card upgrade for Dell XPS 420 Forum[Solved] Upgrade Help ForumAcer Aspire 6935 Processor Upgrade More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !