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New Prescotts, No Heat Issues??

Forum CPU & Components : CPUs - New Prescotts, No Heat Issues??

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Starfishy   01-21-2005 at 06:03:22 PM

I am a TA for a first year biology course (as many of you know), anyway today one of my students tried to convince me that the heat problem with the Intel Prescott 3.0 Ghz CPU is no longer an issue, and that these CPU's run at the same temps as an AMD A64 3200+. I disagreed, and proceded to ignore all of the other students in the class (whom probably had real problems) just so that I could argue the point with him. It's not that I am trying to prove him wrong or anything, but I would be interested in hearing some of your input on the issue.

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phial   01-21-2005 at 06:45:26 PM
- 0 +

i hear theres a new stepping that runs cooler, but its supposed to be like they run at 55-60c load, not 75+

A64's are still cooler than 55-60c load. definately.

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Crashman   01-22-2005 at 11:42:40 AM
- 0 +

I believe they put out around 10% less heat. That's still over 30% more than the A64.

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JCLW   01-22-2005 at 05:26:15 PM
- 0 +

I just posted this in another thread, but I'll post it here too:

Here's my Celeron 2.66 (133FSB) 330J on a P5GDC running at 4ghz (200FSB). This is with a CoolerMaster Hyper 48 heatsink with a Zalman fan running at ~1250rpm.

Idle, 26C:
<A HREF="http://img136.exs.cx/img136/5738/idle8hi.gif" target="_new">http://img136.exs.cx/img136/5738/idle8hi.gif</A>

Loaded, 39C:
<A HREF="http://img136.exs.cx/img136/5502/loaded6vi.gif" target="_new">http://img136.exs.cx/img136/5502/loaded6vi.gif</A>

The stock intel heatsink gives similar temps (a little higher) but I was going for a completely silent system and it had a bit of a whine to it.

At stock speeds temps are ~26C at idle and ~32C loaded.

*Dual PIII-800 @900 i440BX, Tualeron 1.2 @1.6 i815, Celeron 2.6 330J @4.0 i915*

Reply to JCLW
Scout   01-22-2005 at 05:40:07 PM
- 0 +

I agree, the last Celeron D I built ran much cooler at 3.5 GHz. than I expected - 53 C under load. 'Course with that smaller L2 cache, there's far fewer transitors generating heat than the P4!

My last 3.0 P4 Prescott also ran cooler - in the upper 50's under load which was about 10 degrees lower than my earlier P4 Prescott.

So they've made some progress, but my A64 definitely runs cooler.

Scout
700 Mflops in SETI!

Reply to Scout
JCLW   01-22-2005 at 05:43:05 PM
- 0 +

What stepping is your Celeron-D? The new "E0" stepping is by far the coolest. And running them on a s775 board seems to keep them cooler too.

*Dual PIII-800 @900 i440BX, Tualeron 1.2 @1.6 i815, Celeron 2.6 330J @4.0 i915*

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Scout   01-23-2005 at 07:21:14 AM
- 0 +

It was a D0 stepping. Looks like most of the E0 steppings are for the 775 socket...

Scout
700 Mflops in SETI!

Reply to Scout
endyen   01-23-2005 at 09:07:24 AM
- 0 +

Here is a pretty crazy idea so please feel free to blow it out of the water.
As we all know, the new itanics can change thier speed, dependant on need. What if the new steppings is just this function on desktop. It is common knowledge that the new chips run on lower voltage depending on need. It is also true that they draw about 115w if they are run at full load.
It does not seem to far fetched to think that, while part runs at a standard speed, the main part of the chip clocks to need. It might also explain why Intel was in such a hurry to dump the chip's speed from it's name.

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