Author: Aaron Gordon
Date: 12:04:37 03/28/02
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No, this is absolutely not true. Don't worry. Your CPU will not decrease in speed when the CPU heats up. I've run distributed processing applications for years. In those years I've ran CPU's (sustained) from negative 50 celsius to 60 celsius. During that wide range of temprature there was a 0% speed increase/decrease. Now, if you like overclocking then you'll want to get the cpu as cold as possible as the colder it gets the higher you'll be able to run it. For example. My old Tbird 1.0 (AXIA stepping) did 1.5GHz with standard cooling, 1.7GHz with liquid. If you cooled that CPU down to -120C it would effectively run 3.0-3.2ghz or so theoretically (Graph for those interested, ftp://speedycpu.dyndns.org/pub/cmoscool.gif). At stock speeds however you could let the CPU get up to around 60C before any instabilities occur. This won't affect speed, though. Just stability. Only thing you'd really need to worry about is your particular OS getting bogged down via memory leaks in poorly written applications and similar fun stuff. This won't affect raw processing power (what chess engines use), however. Eventually though if it's bad enough (memory leaks and whatnot) you'll have most everything swapping to disk and slowing stuff down to a crawl.
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