performance difference between sql server 2008 R2 and sql server 2008

[baran121]

i need to know is there any performance difference between sql server 2008 R2 and sql server 2008 express R2?
i have a customer that use sql server 2008 express R2 edition, there is a problem, it doesnt work after 18:00 oclock, CPU is almost full. but when i look at the programs which is opened i couldnt see any program that use CPU very much.

i want to add that my database is 1.7 GB for now.

can anyone help me please?
thank you.

 

[markros]

Is there something running after 18:00 ? SQL Server Express 2008 R2 has 10GB limit for the database. This also refers to tempdb.

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[baran121]

thank you markros,
i see sql server 2008 express has limit about CPU and RAM ,can the problem be because of limitation?
no there is nothing running after 18:00 ,i also stopped antivirus.

 

[markros]

I guess it's possible, but not enough information for anyalysis.

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