Whisper

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Are we ever going to see CPUs again that can be cooled passively? My laptop's Pentium M takes impressively low power but is that technology feasable for desktops too?

Just curious if anyone got some insight about that. I don't want my next system to have a noticable impact on my power bill...
 

ChipDeath

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there'll always be passively cooled CPUs, just the top-end stuff will always have a fan. If AMD can get a 10Ghz x86 compatible chip out - but only with some huge FAN - then they're going to try to grab the headlines with it, as would intel. Any passively cooled chip can be clocked faster with active cooling, and speed sells, simply.

There was a posting on here a couple of months back (maybe more, can't remember) about some guy who used Some heat pipes and a HUGE passive HS (something like 1 ft square) to cool a Athlon XP. It worked, but not exactly at cool temps, so it is possible.

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c0d1f1ed

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Yeah, but I mean a <i>reasonable</i> performance. :wink:

Surely if Intel or AMD would have a line of desktop CPUs that focus on low heat production, we would see some interesting products. Think about the rage of small computer case form factors. I'd rather have one of those sexy 'amplifier' looks instead of a tower that's mainly just empty for all the necessary airflow.
 

cdpage

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i know that there are a few G4 (Mac/Apple) Processors that are passivly cooled, I know for sure you can get them up to 1Ghz, possible higher.



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Crashman

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The old Tualatin Celerons could be passively cooled with an old oversized Pentium heatsink if you dropped the core voltage to 1.30v.

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ytoledano

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My dad had a P3 733 and one day I was inserting a PCI LAN card and I said dude, your CPU fan's off! Apperantly, it hasn't worked for months, I never noticesd it, and he had no problems at all!

And I doubt your Pentium M is passivly cooled, isn't there an oppening where warm air comes out?

Got a nice overclocked overvolted system to keep you warm at night? That's great. Guess I'll have to settle for a woman...
 

SoDNighthawk

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Any manufacturer that makes computer hardware that still sells it with passive heat cooling should have their vendors licence revoked. Unless they attach a 20 pound block of copper to it and call it a transformer!!

No reason at all why all systems should not have extremely high quality fans in all hardware as well as good cooling heat sinks.

In fact they could base maintenance and warranty on how long a fans life span should be.

You just know your CPU melts after the Cat Hair builds up on the CPU cooling fan. About 30 days after purchase.

The old Lap-Tops used to keep the top of my legs warm and my brain on fire....................I would like to see COOLING SYSTEMS in all consumer hardware one of the top Priorities of Electronics manufacturers.

Cheating dirty rotton SoD's the lot of them!!

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Whisper

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I actually have such a desktop system. It has a Celeron 1.2 GHz, passively cooled with a Zalman copper flower. But it still needs one extra case fan. It's still terribly loud compared to the laptop, so at night I work on the laptop. I play games on the desktop since it has a Radeon 9600 Pro.

How can I lower voltage?<P ID="edit"><FONT SIZE=-1><EM>Edited by Whisper on 01/11/04 08:50 AM.</EM></FONT></P>
 

Whisper

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And I doubt your Pentium M is passivly cooled, isn't there an oppening where warm air comes out?
There is a fan. But most of the time it's off. When I do a little intensive work it starts to spin but the noise is absolutely inaudible. I have to watch it to see it spin. And there's no "warm" air coming out. When I play a game for longer than twenty minutes, it goes to a higher speed but you have to concentrate to hear it. If there was more room, it could possibly be cooled completely passively without huge blocks of copper.

Either way, there's nothing that compares to it for desktops, at this performance.
 

Ed_Phoon

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I think an athlon can run by passively cool if you underclock it and lower the voltage. Would you like to get a barton 3200+ and running it at 1 ghz?
 

SoDNighthawk

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wusy fried his XP 2500+ he said in one of his posts even if he did mention that he had enough cooling going to snuff out a Titan rocket......

I think wusy did not realize that the pure amounts of voltage he was running through that chunk of silica sand simply melted all the an-gates out of it. Had nothing to do with keeping it cool the actual an-gates died, they must have been opening and closing more times the then washroom door at a frat party.

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HolyGrenade

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Depends, What you want to do. For desktop work, watching Divx, DVDs, Mp3s etc, The nehemiah is perfectly fine. Of course I wouldn't expect it to do great in the latest games or video processing etc.


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Vapor

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No reason at all why all systems should not have extremely high quality fans in all hardware as well as good cooling heat sinks.
Some people like <b>silent</b> systems, even if the performance isn't topnotch. Fans aren't silent, if they want silence, they will get passively cooled hardware.

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