Author: Heiko Mikala
Date: 13:27:40 12/27/99
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On December 26, 1999 at 14:07:48, Christophe Theron wrote: >On December 26, 1999 at 13:28:03, Vincent Diepeveen wrote: > >>On December 26, 1999 at 11:03:17, Christophe Theron wrote: >>>I have never had any problem with the K6. I'm using AMD processors since 1993. I >>>used to have their 386dx40, K5-100 (equivalent to P200), K6-300 and now K6-450 >>>and I never had such problems. >>> >>>Maybe your microprocessor was broken somehow. Have you tried replacing it with >>>another K6? It might have worked as well... >>> >>>I can report problems with the Pentiums as well. Problems very similar to the >>>one you had. >>I've had major problems with my Pentium PRO 200 in the past when >>i overclocked it a bit. Already overclocking to 240Mhz caused serious problems >>at my ASUS motherboard, despite that there is a huge cooler on the processor >>which is attached with special very poisenous stuff to bring cooling better >>to the cpu. >> >>It ran better at 233Mhz, but then i got com port trouble. >> >>Even more trouble than this i had with all kind of cyrix processors in >>the past. Not many software is supporting cyrix. Sometimes you have to >>run special programs to slow down some things on the processor. >> >>Cyrix is out of the picture though they recently announced a new processor: >>Joshua. Let's see... ...cyrix never was fast for me, despite doing pretty >>well at the integer testsets. > >Cyrix processors were known to generate a lot of heat. Maybe it will change with >their next generation, but the previous one was too close to their physical >limits in my opinion. > >>In all other cases that i had problems with processors it was not >>the processor nor the overclocking, but the cooling that somehow >>broke somewhere in the computer. > >When I woke up this morning and entered my office, there was the special smell >of an electronic part getting real hot. I cannot describe this smell, but I >recognized it instantly. > >The CPU fan of one of my PPro200 motherboard was out of order (it was still >rotating, but very slowly, not enough to produce any significant air flow). > >Of course the computer was hung. I turned it off, replaced the fan (I always >have several of them nearby), and now the computer is working again... I don't >know how many hours the processor has been running without cooling. Maybe 6 >hours. > >I must be the 6th or 7th fan that has broke down in my office this year. > >If your computer crashes randomly, without apparent cause, always check if your >CPU fan is OK. For me it is the second main cause of computer problems (the >first cause being Windows). I have two computers with Cyrix MII-300 processors, and I have no problems at all. Except when they get too hot - either because a fan is defect (as you described above) or on extremely hot summer days (I'm living directly under the roof). Yes, you are absolutely right, the Cyrix gets amazingly hot! You need a very good fan for this thing, and you *really* need a fan - an old Intel P5 (MMX) may run without it, but a Cyrix MII... never! By the way, I have had the most problems because of defect motherboards and defect Ram-chips, not because of defect CPU's. I think I've only seen one defect CPU through all the years. Greetings, Heiko.
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