need help upgrading everything

[Adnan Ibrahim]

i had a dell studio slim 540s but moved everything to a bigger case, also changed the psu bcuz of my new psu of 500 watts. i need help in choosing the best motherboard and processor of at 3.5 ghz, nothing too expensive please thank you

 

[aznricepuff]

We need to know a few more things before we can help you:

What mobo form factors can your case support? (or better yet just tell us what case you have)
What is the specific budget you have in mind?
What are you going to be using this computer for?

 

[Adnan Ibrahim]

We need to know a few more things before we can help you:

What mobo form factors can your case support? (or better yet just tell us what case you have)
What is the specific budget you have in mind?
What are you going to be using this computer for?

its a mid-tower case budget is $200, im using for this calculating physics app that runs for days