nu bet zinai, pajemkim notebuka su 1 gb ram ir su 4 gb ram, vienam diska 
dazniau droz, kitam maziau, kazkaip kaip praktika rodo batarkes gerokai 
maziau uztenka ten kur hardas labiau sukasi

"MRT" <martynas@fastlink.lt> wrote in message 
news:ji52j4$sd9$1@trimpas.omnitel.net...
>> ale pasirodo buna laptopai su dviem hdd, totalus battery sink saltinis :)
>
> ale zinok ne :D.. kodel?.. ogi HDD niam niam pakanka per USB, t.y. 5V 0.5A 
> = 2.5W max..
>
> WD 750GB 7200rpm 2.5" ( WD7500BPKT) :
> Read/Write 1.75 Watts ..  Idle 0.80 Watts
>
> Hitachi 750GB 7200rpm 2.5"
> http://www.hitachigst.com/internal-drives/mobile/travelstar/travelstar-7k750
> Requirement: Read/Write (W, avg)  1.8W
> Requirement: Low power idle (W, avg)  0.69W
> Dissipation: Seek (W, Avg)  2.0W
> Performance Idle  1.7W
> Requirement: Start-up (W, peak, max)  5.5W << hmm.. 2xUSB tokiam kaip ir 
> reiketu..
>
> *******
>
> ~2.0W per HDD ne idle, o darbiniam rezime .. Jei 5400rpm - na bus kokiais 
> 0.5W maziau..
>
> Imam energy-friendly laptop'ika.. na ciupinejes V131 su LV Celeron'u 
> 1.1GHz dual core..
> Akumas 65Wh, laiko ~6.5h .. Aida64 rodo, kad eda jis 10W .. tai viskas 
> true..
> Jame 320GB 7200rpm HDD berods.. su dviem HDD, jei +2W.. 6,5h * 10W/h / 
> 12W/h = 5.4h
> Antras HDD kainuotu akumo valanda !!!! .. siaubas :) .. o jei koks 
> XPS'as?..
>
> http://www.notebookcheck.net/Review-Dell-XPS-17-Notebook-i7-2630QM-GT-555M.51949.0.html
> In comparison to other high performance multimedia laptops, such as the 
> Acer Aspire 7750G,
> the XPS 17's power consumption is surprisingly high. 25.6 – 39.1 watts in 
> idle mode and 102.3 – 121.8 watt
> during load sooner correlate to the power requirement of a full-fledged 
> gaming laptop (e.g. see Asus G73SW).
>
> The hard disk provides a perfect performance. Dell has supplied our test 
> device with a
> ST9500420AS from Seagate – a 500 GB HDD with a speed of 7200 rpm.
>
> Tai prie 25.6W idle jei pridet dar viena HDD, tai butu visi 27W ..
> 90Wh/25.6W=3,52h su vienu HDD, tai su dviem bus - 90Wh/27.6W=3,26h
> 0.26h * 60min = ~16minuciu laikys maziau :)
>
> Taigi jei ne koks ultra-low-voltage-super-light-ultra-portable
> (pvz. jei butu koks nors 4cell - 24Wh akumas ir apetitas 4W/h - laiko 6h, 
> tai 6W/h = 4h),
> tai antras HDD akumui itara daro, bet tikrai ne tokiau jau didele..
> jei piktas laptop (pvz. XPS) tai antras HDD nebus tas, kad bus jame 
> "battery sink source" :D
>