O su salyga, kad antras diskas butu 64GB SSD, tai praktiskai akumui itakos neturi:) "MRT" 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