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Tuesday, August 30, 2005
  blackhole- CPU manufacturing secret
Here's a CPU manufacturing secret:

Most CPUs can be overclocked to run at least a bit faster than usual, giving your PC a free speed boost. And on some rare occasions, low-end chips are capable of running just as fast as much more highly priced CPUs.

But while overclocking can speed up your system, note that you must take care to properly cool your PC, or you might damage the CPU--and most system warranties won't cover that damage.

The big speed jumps usually come along when Intel or AMD has transitioned to a new manufacturing process and is getting great yields on even its high-end chips.

When that happens, slower CPUs that use the same technology are ripe for overclocking.

The classic example: Intel's Celeron 300A chip, a 300-MHz CPU that overclockers routinely ran at 450 MHz. Check in periodically with enthusiast sites like Anandtech (and HardOCP--they go wild when those situations arise.

To overclock most of today's CPUs, you bump up your computer's bus speed, either through the system's PC Setup (or BIOS) program or via a Windows-based utility such as NVidia's NTune.

Each time you increase the speed, you should use a utility like Motherboard Monitor to check the CPU's temperature while you stress the system by encoding video or playing a 3D game.

If the core temperature rises above 60 degrees centigrade, or if you experience any system instability (crashes, corrupt graphics, etc.), roll back to the next-lowest setting and stay there.

-secret revealed-

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