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From: rbowman <bowman@montana.com>
Newsgroups: comp.os.linux.misc
Subject: Re: Uh Oh ... Newest Nvidia Chips OVERHEAT
Date: 21 Nov 2024 19:59:06 GMT
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On Thu, 21 Nov 2024 12:04:12 +0100, Carlos E.R. wrote:

> On 2024-11-21 05:45, rbowman wrote:
>> On Thu, 21 Nov 2024 07:35:47 +0800, Woozy Song wrote:
>> 
>>> 1000 watts TDP?
>>>    Seems just making more powerful chips by brute force has to end
>>>    soon.
>> 
>> Faster == hotter. I remember a seminar about 40 years ago when CMOS was
>> coming into its own and touted as low power. The dirty little secret
>> was the power required to switch capacitive loads is a function of the
>> voltage and frequency so the dynamic power dissipation exceeded that of
>> 74LS parts when you drove them hard.
> 
> Still, they are fantastic for things like a battery powered clock. Or
> processors that stay a lot of the time waiting.

Definitely. Like all design decisions they have their place. To really 
date myself I sent my Osborne 1 back to the factory for the 100 column and 
DS/DD floppy upgrade. The new video would work for a while and then die. I 
isolated the problem chip with a can of cooler. It was CMOS and when I 
replaced it with the equivalent 74LS problem solved.