Yes, it is possible. See page 10 of the Tech Guide, will support up to a Core 2 Quad Q9650.
https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjorNnY6dHVAhXMLyYKHTqeAEIQFggsMAE&url=http%3A%2F%2Fwww.dell.com%2Fdownloads%2Fglobal%2Fproducts%2Foptix%2Fen%2Foptiplex-380-tech-guide.pdf&usg=AFQjCNEL_EM_pl_hCL4X4oodPHpiICIrZA
Are you sure because i have a 380 mini tower and now i have pentium dual core e5800 on page 10
Not that abnormal that a processor not listed in the tech guide has in fact being used. CNET shows that the 380 was supplied with E5800.
https://www.cnet.com/products/dell-optiplex-380-n-series-p-e5800-3-2-ghz-monitor-none-series/specs/
Main thing is that under the "MT" in the table on page 10 they list the four Quad cores that are supported. Other than that I cannot say.
Not that abnormal that a processor not listed in the tech guide has in fact being used. CNET shows that the 380 was supplied with E5800.
https://www.cnet.com/products/dell-optiplex-380-n-series-p-e5800-3-2-ghz-monitor-none-series/specs/
Main thing is that under the "MT" in the table on page 10 they list the four Quad cores that are supported. Other than that I cannot say.
Ok thanks i go with my pc on service because i am not sure on site if i buy this pc he said 4 gb ddr3
But i see on more site and on crucial he work with 8 gb ddr3 1333 mhz
If he have last bios update he work to put 8 gb ddr3