well i got belrac advisor and this is what it said
Operating System System Model
Windows 7 Professional (x64) Service Pack 1 (build 7601)
Install Language: English (United States)
System Locale: English (United Kingdom)
Installed: 12/09/2012 04:29:10 LENOVO 1577G3G ThinkCentre Edge71
System Serial Number: PBAXRL8
Chassis Serial Number: PBAXRL8
Enclosure Type: Desktop
Processor a Main Circuit Board b
3.30 gigahertz Intel Core i3-2120
32 kilobyte primary memory cache
256 kilobyte secondary memory cache
3072 kilobyte tertiary memory cache
64-bit ready
Multi-core (2 total)
Hyper-threaded (4 total) Board: LENOVO
Bus Clock: 100 megahertz
BIOS: LENOVO 9QKT37AUS 02/14/2012
Quiet, foo'!