Monitors, on the other hand, seem to like to be shut off regularly.
At work, we bought 9 Nanao F750's & &60's in 1993.
Only two survive, and one sits on my desk and is turned on and
off daily. Those that were left on 24/7 did not survive the last
cycle of cpu upgrades.
Ken
At 01:42 AM 4/19/2000 -0500, Ryan McGarry wrote:
>All this talk about PC's running 24/7 has convinced me of the
>reliability of processors. It's been my thoughts that if your computer
>is on, it's always running at full speed, whether or not you're running
>Prime95.
>I've always left my computers on all the time, and never had a problem.
>This reliability got me thinking about any other appliances that have
>the same level of reliability.
>
>For example, I remember reading an article about light bulbs which said
>that if you leave a light bulb on continuously, it will last much longer
>due to the fact that the the filament doesn't contract when it gets
>cold.
>
>I suppose my question is whether or not it's more of a risk to your
>processor in allowing it to cool off regularly than leaving it on 24/7?
>
>Thanks,
>Ryan McGarry
>
>John R Pierce wrote:
>>
>> > When pentium pro 200's were the hot new processor
>> > (in speed, more so than in wattage),
>> > I began running some dual-ppro-200 systems with two prime95 instances
>> each.
>> > Those processors are still running it.
>> > I've never had to replace a cpu or motherboard
>> > (though occasionally a motherboard power connector
>> > had to be replaced because it burned up).
>> > I'm not sure but I think that's three years.
>> ...
>>
>> Until last August, my *original* Prime95 participant, a Pentium-100 running
>> first Win95, later Win98, faithfully chugged along 24/7. I started this
>> CPU back when the very first Mersenne article came out in the San Jose
>> Mecury News. This was long before GIMPS had found a prime. Since this
>> win95 box's only other duty was print-server for a old inkjet, and the very
>> occasional fax, it went a month or more between reboots regularly. Said
>> machine is still alive and well, only now its a 133MHz 64MB ram linux based
>> internet server for my DSL connection. http://hogranch.com :) The P100
>> was new when the first 133Mhz pentiums were becoming available and the 90s
>> and 100s got a lot cheaper. Off the top of my head, I think it might be 5+
>> years old. And, yes, I have a dual PPro-200 which has been running prime95
>> 24/7 since it was built 3 years ago.
>>
>> -jrp
>>
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