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Chaintech BX board overheating with Tualatin

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Reply 20 of 24, by CharlieFoxtrot

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shevalier wrote on Today, 08:48:

That’s why there can be no excessive heating of power components on a Pentium 3. With the exception of AGP linear regulators, but the motherboard manufacturers only have themselves to blame for coming up with such nonsense.

Agree on this, I find it unlikely that the regulators would reach even 100C on OPs motherboard. And where this regulator is still more than capable of operating.

OP doesn't seem to give all relevant information at once, so until then I'm going with "feels hot to finger" measurement, which means anything from 50C or more and is for all practical purposes useless. Until OP specifies that he has actually measured the package temperature, we can only guess if there is any actual overheating or "exessive heating" as you say. When we know the temperature, we can deduce from that if the regulator is actually abnormally hot or at worst somewhere close to junction limit.

Reply 21 of 24, by The Solutor

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shevalier wrote on Today, 08:48:

Listen, we’re talking about the year 2000.
There were still 20 years to go before the release of the Cadence Celsius Thermal Solver.

So say Michelangelo when built the S.Peter's Cupola placed a brick on top of another, and hoped for the best, because calculations were invented by millennials? 😁

They simply built in a margin of about 100 per cent, and that was it.

It's basically what I told you, it's basically the answer to your own question, overspec by 100% and then if there is a 50% derating you are still in the safe side.

Pretty simple

ATI also fell for the semiconductor manufacturers’ claims about 100500 degrees Celsius in the Radeon 9700/9800.
As a result, they had to remove the fan controller from the board and glue heat sinks onto the MOSFETs in the reference design.

Aside that infortunate design happen to everyone and every company (Mercedes in the 80s made an engine where the distribution chain was driven by gears with even teeth on both sides, something that even stones know must be absolutely avoided), ATI was and still is a fabless company. Isn't said that something they projected was partly ruined by the foundry.
The world is complicate, the world is analogue, hardly you can divide things in right and wrong.

That’s why there can be no excessive heating of power components on a Pentium 3. With the exception of AGP linear regulators, but the motherboard manufacturers only have themselves to blame for coming up with such nonsense.

Blame who? blame what? we are talking of things with a life expectancy of a decade that after 30 years are still alive and kicking, they should path themselves on the back. Not blame.

Reply 22 of 24, by shevalier

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The Solutor wrote on Today, 09:25:
shevalier wrote on Today, 08:48:

Listen, we’re talking about the year 2000.
There were still 20 years to go before the release of the Cadence Celsius Thermal Solver.

So say Michelangelo when built the S.Peter's Cupola placed a brick on top of another, and hoped for the best, because calculations were invented by millennials? 😁

/offtopic
And even the Leaning Tower of Pisa, despite everything, is still standing. 😀
Although so many similar structures have already collapsed.
The Voyagers are still operational too, but comparing their R&D to the development of a mass-produced motherboard isn’t really a great idea to begin with.

Aopen MX3S, PIII-S Tualatin 1133, Radeon 9800Pro@XT BIOS, Audigy 4 SB0610
JetWay K8T8AS, Athlon DH-E6 3000+, Radeon HD2600Pro AGP, Audigy 2 Value SB0400
Gigabyte Ga-k8n51gmf, Turion64 ML-30@2.2GHz , Radeon X800GTO PL16, Diamond monster sound MX300

Reply 23 of 24, by The Solutor

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shevalier wrote on Today, 09:45:

And even the Leaning Tower of Pisa, despite everything, is still standing. 😀

Which means they calculated the structure with large safety margins, albeit were too confident about the solidity of the ground in that specific place.

Not that different from what we are discussing here.

In reality Pisa's tower is a complicate example, given it started to move when it was in construction, so isn't just inclined, it looks somewhat like a banana, given corrections were applied during the construction phase

Reply 24 of 24, by Mamba

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Guys….
I appreciate your comments but please I asked something else.
As per the specific request, the VRMs are di definitely hot and caps are hot too.
Definitely hotter than with the Pentium II even overclocked.
I ordered Nichicon 1000uf 10v caps anyway.