This little guy stands out from the competition by being a bit smaller than most and fabricated entirely of copper. It has four copper heat pipes, copper fins, and a 92mm fan. The fan features pulse-width modulation (PWM), which varies speed according to your CPU’s temperature (although this feature is supported only on LGA775 boards as of press time).

When the CPU core reaches a designated temperature (set in the BIOS), the fan spins up to 3,200rpm; but we never reached that level in our testing, so the fan ran at a constant—and quiet—1,440rpm.

This product was one of the easiest to install of the entire roundup (in fact, all the Cooler Master units were a cinch). In our tests, the Hyper 48 performed better than the stock coolers across the board, but it didn’t reduce temperatures as efficiently as the other coolers in this roundup.
--Josh Norem

Month Reviewed: September 2005

Verdict: 8

URL: www.coolermaster.com

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