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To: muzosi who wrote (135497)5/19/2001 3:29:59 AM
From: THE WATSONYOUTH  Read Replies (1) | Respond to of 186894
 
i am looking at it now. apparently you are having comprehension problems again. you say "What that says to me ... design less that optimal thermal solutions, should they choose to do so". where do you get this crap about any choice?

Elmer's interpretation of that section is as perverted as I've ever seen. And when called out on it, he responds with the typical Elmer cop-out....... dumbed silence.

THE WATSONYOUTH



To: muzosi who wrote (135497)5/19/2001 11:31:54 AM
From: Elmer  Read Replies (2) | Respond to of 186894
 
i am looking at it now. apparently you are having comprehension problems again. you say "What that says to me ... design less that optimal thermal solutions, should they choose to do so". where do you get this crap about any choice?

Sigh.... You're getting about as boring as theWatsonCryBaby.

Let me walk you through it slowly and then maybe it will make sense.

First off, the only reading comprehension problems are on your end,IMO. My statement and your complaint are unrelated. You are noting that the Automatic Mode is required. That's correct. But what I said was that it offers the system designer an option of designing to a less than optimal thermal solution. These two statements are not mutually exclusive. Consider the two possibilities, optimal thermal design and non optimal thermal design. Here's what the datasheet says in the very first paragraph(if you'd bothered to read the whole paragraph).

I have to type this so please excuse any typos:

"Thermal Monitor is a new feature found in the Pentium 4 processor which allows system designers to design lower cost thermal solutions[note: it says "allows" not "requires"], without compromising system integrity or reliability. By using a factory-tuned, precision on-die thermal sensor, and a fast acting thermal control circuit (TCC), the processor , without the aid of any additional software or hardware, can keep the processors die temperature within factory specifications under real world operating conditions. Thermal Monitor thus allows[note: there's that word "allows" again] the processor and system thermal solution to be designed much closer to the power envelopes of real world applications, [emphasis mine]instead of being designed to the much higher maximum theoretical processor power envelopes. [note: 2 choices here. That qualifies as an "option" in my book]"

So, in short, it offers the system designer two choices: #1 - The option of designing to the lower "real world" thermal requirements should the designer choose to do so and the thermal throttling will provide a safety mechanism in the event of overheating.
#2 - The system designer can always design to the maximum theoretical thermal requirements should he choose to do so and expect no performance impact.

Pretty clear to me. 2 design choices. The only question remaining in my mind is, why is the Automatic Mode thermal sensor required to be on? Why can't the designer just design to the max requirements and be done with it? Answer: I don't know. I didn't design it and I didn't write the documentation.

EP