CPU upgrade? or not

[p1r3 m1g3]

hey guys, currently i have a Intel Celeron 3.06ghz CPU and i want to know what upgrades would best suit my budget of around $150, so any ideas would be great thanks

 

[ThatGuy16]

What are the full specs on your computer?

 

[bigbird]

most importantly, what motherboard do you have?