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[TRNSYS-users] urgent: PC gain!



Title: Messaggio
hi to all!
I urgently need to know what internal gain assign for PC. We know new computers are much more powerful (as processor) and new LCD monitors "sucks" few electricity.
 
En example (from tech data on their back):
traditional monitor: 220V x 2.5A = 625We
LCD monitor: 220V x 1.5A = 330We (but a shop catalogue gives 40-50W power consumption for a similar LCD!..).
 
(an LCD is approximately 50% saving...right? but if I touch a traditional monitor I feel it is actually pretty warm while the LCD one is at ambient temperature! It would seem less than -50% consuming (as thermal gain I mean...). And in any case the electricity charge it is not totally dissipated in heat...)
 
...so can anybody tell me an average reasonable thermal dissipation? for LCD monitor and PC?
 
thanks in advance
Pietro
 
PS
well, according to the following report found on internet (from CERN in Switzerland)
https://webh01.cern.ch/it-support-mrp/B513_Upgrade/reviewoct2002/pc_power_consumption.doc
 
but getting the total consumption and dissipation from it is not clear...
 

 

PC power consumption

 

 

Bernd Panzer-Steindel, CERN/IT/ADC

30.07.2002

 

 

 

 

            (PIII 1 GHz) up to 100 W more (variation of up to 30 % depended on the motherboard 

            and power supply)

 

 

 

 

 

 

à   at a ratio of  10 SpecInt2000 / Watt   ==  2.3 MW power for the CPU server

à   with 1 TB disks at 30 W                     ==  0.1 MW

       but scaling not yet really checked       current   GB/W curve

 

 

            PIII   Willamette (0.13 um)  256 KB L2                          == 28 million transistors

            PIV   (0.18 um)  256 KB L2                                             ==  42 million transistors

            PIV   (0.13 um)  512 KB L2                                             ==  55 million transistors

            Itanium 2  Mcinley (0.18 um) 256 KB L2 + 3 MB L3     ==  220 million transistors

            Itanium 2  Maddison (0.13 um) 256 KB L2 + 6 MB L3   ==  500 million transistors

            (L3 on chip !) à power

 

 

 

 
 
Ing. Pietro Filippi
Nier Ingegneria SpA
www.niering.it
Via Altabella 3, 40126 Bologna
tel: +39 051234359
fax: +39 051239530
 
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