Author: Robert Hyatt
Date: 10:59:37 02/14/00
Go up one level in this thread
On February 14, 2000 at 03:14:46, Dave Gomboc wrote: >On February 13, 2000 at 13:55:06, Albert Silver wrote: > >>On February 13, 2000 at 12:57:14, Andrew Carey wrote: >> >>>On February 13, 2000 at 11:05:08, Robert Hyatt wrote: >>> >>>>On February 13, 2000 at 03:15:12, Tom Kerrigan wrote: >>>> >>>>>On February 12, 2000 at 19:53:12, Robert Hyatt wrote: >>>>> >>>>>>I don't believe they are doing this. They are applying -40c to the cpu, but >>>>>>the heat it is producing prevents the cpu from getting to -40 during operation, >>>>>>I'd bet. I'd bet the real cpu temp is well over 0c, if it has a temp >>>>>>thermocouple as my xeons. do. My xeons run at about 106F under heavy load, >>>>>>for a reference. >>>>> >>>>>Possibly. I wouldn't know. If they aren't getting the CPU down to -40, then I >>>>>don't see why they would be taking such precautions against condensation. >>>>>(Somebody else posted about this yesterday.) >>>> >>>> >>>> >>>>quite simply. The "cold box" attached to the cpu is removing heat by spraying >>>>freon into a small chamber where it evaporates and takes the temp down to about >>>>-40c. The cpu is providing enough heat that this temperature is never reached, >>>>which is the point of the device. If you shut the cpu off, you have a block of >>>>aluminum that _is_ suddenly at -40, so that you get first ice, then water. They >>>>turn on a heater device to replace the CPU's heat output, and get everything >>>>above the condensation point, before the thing gets shut off. Their cooling is >>>>not anything remarkable at all. The main problem they had to solve is that a >>>>cpu that is idle (halted in an O/S wait loop) produces almost zero heat, so they >>>>have to avoid turning the CPU and associated motherboard area into an icecicle. >>>> >>> >>>icicle >> >>This comment warms my heart. Bruce would be prowd. :-))) >> >> Albert Silver > >Proud! > >And I noticed that Bruce spells rumour without the second u. How tacky. > >;-) ;-) > >Dave Nah, it's the damned Europeans that are ruining spelling. Some examples: colour. rumour. I have fits when I write something for the JICCA. Jaap changes all the "colors" to "colours" then sends the edited text to me for final check. I change 'em all back. He goes bananas and changes them back. I keep telling him _I_ don't use "colour". It looks wrong to my eye. :) rumor is correct, IMHO. As is color. Of course, icecicle is wrong, but that was just a quick "icicle doesn't look right, icecicle doesn't look right, and I never went back to look at it a second time." colour will _never_ look right to me. :) neither will behaviour and all the other "our" rather than "or" words. wonder why they don't change for to four? :) or "tournado" for a serious storm. :)
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