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What you would Gain is just more Speed. Depending on how stable it is and how far you go that is. I only overclock so F@H will run faster that and Im bored.
Preparing to Overclock: Adding sufficent Case cooling so all components are Cooled. Usually 1 or more Fans in and out. My setup is: 120MM out, 1 120MM in, 2 80MM in 1 Out. 2 Fans on RAM.
After market heatsink on CPU w/ Artic Silver 5 as thermal Paste. Best heatsink are all Copper and usuasly have heatpipes. A high speed fan on the heatsink is also a good Idea. Good heatsinks for this socket are The XP-90 and XP-120. Draw backs are that they are expensive, heavy and Large. (Other cooling choice include but are not limited to Phase change, Peltier, watercooling)
What you should have: A digital multimeter to test Power supply for stability. Temparture programs such as Motherboard moniter 5, everest or Speed fan. A temp probe is suggested. Torture and Benchmark programs to test Overclock Stability. Such as Prime 95 or OCCT.
Patience.
How to start: Start in slow incriments, Upping CPU clock by 2-3 Mhz. Until tempartures exceed safe limits or Windows/gamming and torture tests can no longer run without Stability/BSODing/ Error issues. Determining a stable overclock requires alot of time. At the least 8 hours of torture testing followed by 2 or more days of regular computer useage. Once an overclock has been determined unstable you can enter the CMOS and up the Vcore by 1 incriment and or loosening RAM timmings. A RAM divider may be needed at some point. Upping the DDR Voltage may also be needed. For example: RAM timminngs 3-4-3-7. My Defualts were 2-3-2-5 By Increasing the Values you effectivly allow the RAM to "keep up" with a given overclock. You may need to test different Values and combinations of CPU Clock, Vcore, DDR Voltage, RAM divider and RAM timmings before finding a stable plateau.
Notes: Overclocking is Limited by, quality of Power supply, motherboard, RAM and cooling.
Dangers: Overclocking Can cause hardware Instibility and if NOT properly monitered can Burn up and permantly Damge RAM/CPU/Motherboard?Graphic Card or Harddrive.
In some cases a windows installation can be currupted by High overclocks. Therefore it is suggested you back up important information frequently.
Example:
My Current Overclock. Stability: Not fully Accepted ATM
Others: Check your CMOS Setup for SATA/EIDE Lock. Enabling this option will help prevent the overclock from currupting windows.
In some cases a BIOS flash is required for some options to become available in the CMOS. A good test of Stability is not only Running Torture tests but having F@H or SETI run all the time.
If you have any other questions, don't Hesitate to ask them.
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Btw, you don't want to overclock labtops even if you could.