Upgrade Tags: CPUs Pentium Dell Last response: June 3, 2010 4:28 PM in CPUs Share peter III June 3, 2010 1:56:23 PM what upgrade should i do to my DELL OPTIFLEX 745 INTEL PENTIUM D...to make it fast. More about : upgrade triplebug June 3, 2010 2:03:23 PM Well, you're using socket 775 and you can upgrade your processor to dual-core(Intel Core 2 Quad Q9550, Intel Core 2 Duo E8400) but it won't last long. Maybe consider purchasing a new build? Here's some really informative and recommend buy from tomshardware's review. http://www.tomshardware.com/reviews/balanced-gaming-pc-... saint19 a c 154 à CPUs June 3, 2010 4:28:48 PM Hi newcomer and welcome to the Tom's hardware forum. The best way to know what CPU u can upgrade is, contact to DELL CHAT SUPPORT using ur service tag and ask it the same. I do it for u with a rig that I have in my job, and the max CPU that u can upgrade is the Intel Pentium D series, so, the recommendation of Core 2 quad isn't valid Can't find your answer ? Ask ! Publish Related resources: ForumWhere can I find a good mechanical keyboard? ForumWhat type of processor can i upgrade my packard bell easynote R1938 to ForumCPU Upgrade ForumNeed to upgrade GPU or CPU ForumPSU Cooling upgrade? ForumUpgrade from E8500 to Q9650? ForumHelp with Upgrade? Forum[Solved] Upgrade bios question ForumCeleron 530 upgrade ForumOlder CPU upgrade More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !