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In Reply to: RE: The power consumption of the my new platform. posted by Mihaylov on September 26, 2010 at 15:36:16
I can easily understand isolating the HDD from the system/MB but once it is powered independently what difference could it possibly make whether it uses ten watts or one?
If one was to power with a battery I could understand this concern. Using AC makes it very hard to understand the motivation.
Follow Ups:
- 2.5 inch hdd allows to use less powerful PSU which to make qualitative easier, i.e. with smaller level of ripple, which is cheaper and which releases less heat.
- More powerful electric motor in 3.5 inch hdd emits stronger RF noise and an electrical noise into ground bus.
My fear was that you were saying you could hear a difference.
I am relieved!
Rick I was a late comer to the 2.5" hd's. I used 3 3.5" disks and because of the electrical reasons mentioned above by Mihaylov the 2.5" disks put a lower strain on any power supply and yes I heard more purity with 2.5" disks. Just think about the ssd's... they are a further reduced load on the power supply and they definitely sound different (but not necessarily better). They are too 'upper bass' shy sonically in my system. The 2.5" disks are just right for my system balance.
if one is powering the HDDs from the same supply as the computer I can easily see the advantage that would arise from the one requiring the least power BUT if the HDD has its own supply I cannot imagine it could possibly make a difference.
I used to use the originally recommended 2.5" HDD's (were they SAMSUNG? can't remember, when I changed to the WESTERN Caviar Black I heard no difference whatsoever, but that is simply my experience.
Maybe I am lucky but the WESTERN drive makes a little noise when starting but after that is silent. It is placed on a sorbothane pad within my think walled wooden box. Even if it did make noise it would not be heard from the listening sofa.
Just my experience.
Wish I was brave enough to try an SSD for software but I have read too many stories of difficulty with XP and SSD so I will wait.
I measured it to confirm I wasn't going over the current limits of the LT3080 I wanted to try a few weeks back.
As far as hearing a difference, I have here three HDD's (500Mb WD, 640Mb Samsung, 1Tb WD) and will be swapping among them to see if I can hear any differences between them... I also want to try home-made SATA data cables (Ala Peter Daniel... anyone got a source for SATA cables with snap-on ends? I know they are available... but I can't find them!), additional bypass caps at the HDD, screen, and USB connectors, and I now have copies of both XP SP1 & SP2 and need to setup a dual-boot setup so I can compare them.
So many things to try, so little time!
Greg in Mississippi
Later!
Everything matters!
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