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 185 à CPUs December 10, 2011 8:51:17 AM which exact motherboard is it? Model # socket # etc. m 0 l 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 m 0 l Related resources computer dell optiplex gx280 won't recognize external hard drive after win 7 update - Forum Dell Optiplex GX280 does not support Windows 7 - Forum dell optiplex gx280 cpu upgrade - Forum Dell optiplex gx280 wont boot - Forum Dell optiplex gx280 cpu replacement pentium 4 540 -> celeron 420 - Forum Can't find your answer ? Ask ! Get the answer amuffin a c 185 à CPUs December 12, 2011 2:14:42 AM Well which cpu is it? m 0 l 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 m 0 l 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 m 0 l Can't find your answer ? Ask ! Publish Related resources What cpu can my dell optiplex gx280 handle Forum SolvedBest gaming upgrades for Dell Optiplex 740 MiniTower for $300-$400 Changing GPU, PSU, RAM CPU and Mobo Forum Dell optiplex 390 won't boot after cpu upgrade Forum Dell optiplex GX620 won't turn on....mobo light is steady amber Forum Dell Optiplex 380 - CPU Support Forum SolvedDell Optiplex gx520 motherboard upgrade - new motherboard wont boot. Forum Solved[SOLVED] New mobo and cpu. Old power supply won't post but fans spin. Forum SolvedCPU won't boot after installing a new mobo Forum SolvedNew mobo, CPU, RAM; won't POST Forum SolvedNew cpu supported by older mobo? Forum Brand new mobo won't power CPU fan Forum New CPU mobo and ram. Computer won't launch windows Forum SolvedNew build won't POST, I've tried everything. Is Mobo/CPU fried? Forum SolvedNew Build Won't POST - What do you typically RMA? CPU or MOBO? Forum Got 8GB DDR3, mobo won't support it, looking for a new one Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !