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#1 2007-04-15 10:20:39

raoul.grasselli
Member
Registered: 2007-04-14
Posts: 18

DNS 323 power supply, and Barracuda Hd

Another question upon DNS power supply...

reading datasheet (http://www.seagate.com/docs/pdf/datashe … 200_10.pdf) we see that spinup power comsumption (for all barracuda drives) is 2.8 Amps... so considering that drived are spinned up sequentially ...  if i suppose to have installed two barracuda, when the second is spinned up... remains very low current 0.2A to mantain 7200 rpm to first drive... so what i miss...? this cannot cause power supply failure... after many power on ?

May i swith to another drive (for example 7K1000 require only 2.0 A at spinup)....?

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#2 2007-04-15 11:26:53

skydreamer
Member
From: At the Atlantic Coast
Registered: 2007-01-06
Posts: 232

Re: DNS 323 power supply, and Barracuda Hd

There is a built-in current overload protection in the DNS-323 power supply so a short current spike is not going to destroy it.

SD

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#3 2007-04-15 11:49:33

raoul.grasselli
Member
Registered: 2007-04-14
Posts: 18

Re: DNS 323 power supply, and Barracuda Hd

skydreamer wrote:

There is a built-in current overload protection in the DNS-323 power supply so a short current spike is not going to destroy it.

SD

this don't mean that is safe use two Barracuda drive...  DNS323 may not work properly, working with not enought current... at least one barracuda drive i think can cause problem if spinning up as second drive...  but this is my opinion.. i'm not an electronic engeneer... but i wolud like to know the opinion of this forum...

thank to all...

Raoul

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#4 2007-04-16 15:00:38

skydreamer
Member
From: At the Atlantic Coast
Registered: 2007-01-06
Posts: 232

Re: DNS 323 power supply, and Barracuda Hd

There are separate 12V and 5V power lines, only the 12V line gets loaded during the disk spin-up, while 5V is used for the electronics so no worries.

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#5 2007-04-16 21:25:59

phil
Member
From: California
Registered: 2007-02-21
Posts: 32

Re: DNS 323 power supply, and Barracuda Hd

There's a list of Seagate drives that will work per D-Link at...
http://support.dlink.com/faq/view.asp?p … on=DNS-323
I also have a pair and it appears to work just fine...


cool D-Link DNS-323 • 2x Seagate Barracuda 7200.9 ST3500641AS 500GB SATA2 7200RPM 16MB NCQ • RAID1 • F/W: 1.03 • ext2
cool D-Link DSM-320RD MediaLounge Streaming Media Player with DVD and Card Reader • F/W: 1.04 • wired network
big_smile D-Link DSM-510 MediaLounge Streaming Media Player • HDMI 1080i • F/W: 1.07 • wired network

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#6 2007-04-16 23:10:33

raoul.grasselli
Member
Registered: 2007-04-14
Posts: 18

Re: DNS 323 power supply, and Barracuda Hd

skydreamer wrote:

There are separate 12V and 5V power lines, only the 12V line gets loaded during the disk spin-up, while 5V is used for the electronics so no worries.

ok, and then? 12V get overloaded and 5v no, but the 2.8 amp requested on 12v ..are to much...because 0,2 Amp left are too less to manteined spinned up the second drive.... i think that with this load, you don't have 12V output... and also you don't have +5v on output.. so nothing will work... i think...

Perhaps, you have not explained clearly your are thinking....

But i think there are some alternative seagate drives... that spin up with only 2 amp....

Last edited by raoul.grasselli (2007-04-17 10:24:55)

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