W
WilliamC
Guest
Does having the backlit keyboard on lower the battery life. Also i am intrested in adding a 7200rpm notebook harddrive can i do that? and will it lower the battery life?
Thanks
William C.
Thanks
William C.
tariq said:upgrading to a 5400 or 7200rpm drive WON'T reduce battery life, there are quite a few benchmarks which prove there is almost little to no difference.
MoltenLava said:In general, 7200rpm drive has higher power consumption than 5400rpm drives. In this case you can't change the law of physics. With higher power consumption, the battery life will be reduced.
WilliamC said:You don't need to change any laws of physics to achieve that goal all you need is a simple thing called optimization. These drives are designed to consume as much power as a 5400rpm. Apple themselves achieved this with the 5400rpm they have some adaptive power implementations that result in about as much of a power consumption as their 4200 rpm. Research it.
Obviously, Hitachi succeeded in getting the energy use of the Travelstar 7K60, which turns at a speed of 7200 rpm, lower than the typical demand of a fast and economical 5200-rpm drive like the Momentus from Seagate. For one, the Travelstar 7K60 has a femtoslider. The femtoslider is not only considerably smaller, it is also significantly lighter than a "normal" picoslider. However, less volume means that less power is needed to move the slider back and forth across the disks. This, in turn, results in lower energy use by the hard drive. For another thing, Hitachi uses a very effective, adaptive power-saving mechanism - the A.B.L.E. (=adaptive battery life extender).