On 2000-10-17 [EMAIL PROTECTED] said:
>> had suspected that my problem could be caused by
>> overheating,
>Usually a chip for civil purpose works without problems from -40�C
>upto 85�C. Of course, if you touch it with your finger it is very
>hot (from 50�) , but this does not mean it is damaged.
>Keep chips cold it is a way to longer their life, but it does not
>repair them. A common and studied degenerative process bring chip
>damage by junctions contamitation, this process runs quickly at
>high temperature. It for sure overclocking short CPU life time.
>As far I know the most common problem coming with heat is bad
>electrical contact because metals enlarge with heat and this
>affects bad solders.
Hi --
I recently opened up the PC/XT, and the 8253 timer chip is soldered on
the board. So if it's damaged, it will have to be replaced, and I don't
know where I could find a replacement. I re-installed all of the 18
RAM chips, too, but after testing the system again, it only runs about
10 minutes before locking up, which seems worse than before. Although
I have noticed some of the chips are warmer than others, I wouldn't
know what is too much heat for any given chip. None of them get too
hot for a casual touch, however.
Jerry [o:--] "The" IBM AT/5170 model 319 [--^~---] 9600kbps/30M HD
*1986 ||||||||||||||||||||||||||||||||||||| [ =====_] 512k RAM - 8MHz
Net-Tamer V 1.11.2X - Registered
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