in the bios, if you have a K cpu i.e i5 3570k, i5 2500k also get a aftermarket cooler

for god sake , don't do it , look at a tutorial first , Or you might set the cpu on fire.

What motherboard, CPU model, and CPU cooler do you have?

Packaged Quantity 1.0
System Type Notebook
OS Provided Microsoft Windows 7 Professional 64-bit Edition
Service & Support 3 years warranty
Notebook type Midsize,
HD display
Processor / Chipset
CPU Intel 2nd Gen Core i5 2 i5-2520M / 2.5 GHz
Max Turbo Speed 3.2 GHz
Number of Cores Dual-Core
Cache L3 cache - 3.0 MB
64-bit Computing Yes
Chipset Mobile Intel QM67 Express
Platform Technology Intel vPro Technology
Features Integrated memory controller,
Intel Turbo Boost Technology 2.0,
Hyper-Threading Technology
Memory
RAM 4.0 GB ( 1 x 4 GB )
Max RAM Supported 8.0 GB
Technology DDR3 SDRAM
Speed 1333.0 MHz / PC3-10600
Form Factor SO DIMM 204-pin
Slots Qty 2
Empty Slots 1.0
Storage
Hard Drive 320.0 GB HDD / 7200.0 rpm
Interface Serial ATA-300
Optical Drive DVD-Writer - Fixed
Display
Type 14.0 in
LCD Backlight Technology LED backlight
Max Resolution 1600 x 900 ( HD+ )
Widescreen Yes
Image Aspect Ratio 16:9
Features Anti-glare
Audio & Video
Graphics Processor Intel HD Graphics 3000
Memory Allocation Technology Dynamic Video Memory Technology
Camera Yes
Resolution 0.92 Megapixel
Capture Resolutions 1280 x 720
Sound Stereo speakers , Stereo microphone
Codec CX20672
Compliant Standards High Definition Audio
Input
Type Keyboard,
TrackPoint,
UltraNav
Features Spill-resistant,
Multi-touch touchpad
Communications
Wireless 802.11n,
Bluetooth 3.0
Wireless Controller Intel Centrino Advanced-N 6205
Network Interface Gigabit Ethernet
Wireless Broadband (WWAN)
Generation 3G upgradable
Battery
Technology 6-cell Lithium ion
Installed Qty 1.0
Max Supported Qty 2.0
Run Time 5.5 hour(s)
AC Adapter
Voltage Required AC 120/230 V ( 50/60 Hz )
Output 65.0 Watt
Connections & Expansion
Expansion Bays 1.0 x Ultrabay Slim
Slots 1.0 x ExpressCard/34 ( 1.0 free )
Interfaces USB 3.0,
DisplayPort,
USB 2.0,
PoweredUSB,
Headphone/microphone combo jack,
LAN,
VGA
Memory Card Reader 4 in 1 card reader ( SDXC Memory Card ),
( SDHC Memory Card ),
( SD Memory Card ),
( MultiMediaCard )
Software
Software Included ThinkVantage System Update,
ThinkVantage Access Connections,
ThinkVantage Power Manager,
Skype,
ThinkVantage Toolbox,
Norton Internet Security 2011 (30 days subscription),
Corel DVD MovieFactory Lenovo Edition,
Corel Burn.Now Lenovo Edition,
Windows Live Essentials,
Adobe Reader,
Corel WinDVD,
ThinkVantage Rescue and Recovery
Microsoft Office Preloaded Includes a pre-loaded image of select Microsoft Office 2010 suites. Purchase an Office 2010 Product Key Card or disc to activate preloaded software on this PC.
Miscellaneous
Integrated Options ThinkLight
Embedded Security Trusted Platform Module (TPM 1.2) Security Chip
Features Power-on password,
ThinkPad Roll Cage,
Intel Active Management Technology (iAMT),
Hard drive password,
Administrator password,
ThinkVantage Active Protection System,
Security lock slot (cable lock sold separately)
Compliant Standards RoHS
Localization English
Dimensions & Weight
Width 13.5 in
Depth 9.1 in
Height 1.0 in
Weight 3.7 lbs
Manufacturer Warranty
Service & Support Details Technical support - Parts and labor - Battery - 1 year - Pick-up and return - availability: 24 hours a day / Monday-Sunday,
Limited warranty - Phone consulting - 3 years,
Limited warranty - 1 year
Sustainability
ENERGY STAR Qualified Yes
EPEAT Compliant EPEAT Gold
Greenpeace policy rating (Nov 2011) 3.8

It's a mobile CPU, it overclocks itself in response to load (simply put). Can't overclock it in a normal sense. What you CAN do is use more aggressive power settings.

r00t wrote It's a mobile CPU, it overclocks itself in response to load (simply put). Can't overclock it in a normal sense. What you CAN do is use more aggressive power settings.

oh yh ok i have heard about a program called "Turbo Boost 2.0" but not too sure

davidman wrote

r00t wrote It's a mobile CPU, it overclocks itself in response to load (simply put). Can't overclock it in a normal sense. What you CAN do is use more aggressive power settings.

oh yh ok i have heard about a program called "Turbo Boost 2.0" but not too sure

That's it. It will save you power by downclocking when you don't need the speed and overclocking when you do. Cool stuff.