Dell Optiplex GX280 New Mobo won't support my cpu Tags: CPUs Support Optiplex Dell Last response: December 19, 2011 7:42 PM in CPUs Share koontzinator December 10, 2011 1:59:54 AM I bought a replacement mobo for a dell optiplex gx280 and it won\'t support the cpu. The southbridge chipset is an intel SL7AG, what cpu should I get? More about : dell optiplex gx280 mobo support cpu amuffin a c 184 à CPUs December 10, 2011 8:51:17 AM which exact motherboard is it? Model # socket # etc. koontzinator December 12, 2011 2:12:30 AM Dell Optiplex GX-280 P4 Skt 775 MotherBoard Tray G5611 #380357093257 this was the listing off of ebay Related resources Dell Optiplex GX280 Upgrade Question - Forum What cpu can my dell optiplex gx280 handle - Forum Upgrading an old beast - Optiplex gx280 CPU compatibility - Forum Dell optiplex gx280 processor - Forum Dell Optiplex GX280 Graphics Card PCIe Upgrade - Forum Can't find your answer ? Ask ! Get the answer amuffin a c 184 à CPUs December 12, 2011 2:14:42 AM Well which cpu is it? koontzinator December 12, 2011 3:00:53 AM SL7J8 INTEL P4 w/HT 3.4GHz 1M 800MHz Socket 775 CPU This is what I purchased off of ebay as well...different seller. This is the one that is giving me the unsupported processor error koontzinator December 19, 2011 7:42:51 PM amuffin said:Well which cpu is it? Did you have a chance to look at my last post? I would appreciate any help you could give...thanks Can't find your answer ? Ask ! Publish Related resources: ForumWill a 3.8GHZ Intel P4 (570J) work in the older Dell GX280 ? Forum8800GT & Dell GX280 PSU Check ForumNew processor for a dell optiplex GX280 ForumRAM Upgrade for Dell Optiplex GX280 ForumDell Optiplex GX620 + Core 2 ForumDriver's for dell optiplex gx280 sff w/ Xp x64 Forum212 evo fan replacement Forum[Solved] Dell OptiPlex GX620 Forum[Solved] Can I plug a PSU replacement fan into mobo instead of psu? ForumNew CPU or MOBO+RAM? ForumUpgrading a Dell Inspiron 570 hard drive for Adobe CS4 ForumDell Inspiron 6400 wont go past the vista welcome screen! ForumDell Optiplex GX620 upgrade advice ForumBulldozer/Asus mobo compatability ForumNew CPU heatsink/fan. Now computer won't start. More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !