Author: Aaron Gordon
Date: 02:54:39 01/03/05
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On January 03, 2005 at 05:01:13, Ray Banks wrote: >On January 03, 2005 at 03:05:46, Aaron Gordon wrote: > >>I'm just curious as to how long these new blazing hot P4s are going to last, and >>what is going to happen to Intels reputation if they start dying left and right >>on people after a year or two. Guess we'll see in a few years (assuming people >>keep the chips that long and don't upgrade). > >I agree with what you say, but the fact that the P4 throttles down to much >slower speeds when it gets hot (and will shut off altogether if it has to) >avoids the issues you mwntion above. The chips won't die becuase they protect >themselves. They just run very slowly - and people don't get the performance >they paid for - or in extreme cases just switch off. > >In an office situation, where offices are air conditioned, and where the CPU >almost never spends long periods under full load, the problems don't occur too >much. Of course i those situations you don't need too fast a CPU anyway It throttles at a specific temperature. This means if it starts to throttle at say, 80C, then it'll continue to throttle down and keep it just under 80C.. doesn't matter if it runs 1GHz or 4GHz, it'll try to run as fast as possible while staying under that temp. 80C is just too hot however, throttled or not. The chips over long periods of time will have problems. Throttling is there to prevent immediate death from getting up into the 100C+ range. Throttling also won't run your 3.8 at say, 2.8 and 45C.. it'll try to maintain UNDER the maximum throttle temp. Clock itself up to 3.8, hits 80C and then starts switching between 2.8, 2.4ghz, 3ghz, etc trying to keep the temp under that.. and it WILL stay just under that. All I'm saying is that 80C is simply TOO hot and accelerated electromigration is going to happen. You may put better cooling on it as well, but unless it is liquid you'll only see less throttling and the temps will remain about the same (just under max throttle temp).
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