Optiplex 5050 SFF Owner's Manual  - pg. 64 Optiplex 5050 Spec Sheet  The Optiplex 5050 can take 7th gen, but not 9th gen.  Optiplex's are typically limited to one gen.
Hi, I've recently acquired an Optiplex 5050 SFF that came with a 7th Gen i5.  Is the motherboard compatible with a later i5 CPU such as the i5-9400f?  I'm just wondering if anyone has tried upgrading the CPU in this way and if it worked. Thanks
Optiplex 5050 SFF Processor Compatibility