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usb 3.0, sata 2.5 hdd and external enclosures

post #1 of 15
Thread Starter 
hi,
i just bought 2x 2.5" external hdd usb 3.0 enclosures from ebay.
i thought i'll use the internal 20pin usb 3.0 headers to add 2 more 2.5 hdd to my collection gunner.gif

i just experimented with an intel x25m80g, a seagate momentus 5400.6 and wd scorpio blue 320g,
to my surprise the WD had difficulty powering up, i couldnt do a read test, the intel ssd worked perfect and the momentus too, though the read results were non impressive.
so what should i be aware when i want to put 2.5 hdd with a usb to sata enclosure? to make sure the hdd has enuff power, what options should i be aware of. which 2.5" hdds/models (save ssds) are best suited for this kind of setup?
post #2 of 15
I've never had an issue with an external enclosure not supplying enough power to power up a HDD. Are you sure the HDD is inserted all the way into the enclosure?
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by HWI;14650726 
I've never had an issue with an external enclosure not supplying enough power to power up a HDD. Are you sure the HDD is inserted all the way into the enclosure?

no, i took out the pcb portion, its all visible, i tried intel ssd, seagate momentus and wd scorpio ... i did read tests on all 3 ... if it didnt power up enuff, it didnt ...

btw, its usb powered, there's no AC adapter, so insufficient power is a real possibility.
this is the item, u cant miss it if u didnt connect the hdd correctly
http://www.ebay.com.sg/itm/260786854838?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Edited by helloicanseeu - 8/20/11 at 2:56am
post #4 of 15
Yes it happens, I've had a seagate having trouble powering up in an external enclosure. Sometimes the HDD's just require a little extra while powering up.
I dont know why but this only happens with third party enclosures and not factory made ones like WD, seagate themselves.

Try to get a Y cable. It basically has two USB ports on the other end(one for data/ one for extra power)
http://www.google.co.in/imgres?q=external+hard+disk+Y+cable&um=1&hl=en&sa=N&biw=1366&bih=667&tbm=isch&tbnid=BG5r3HQsOaUjOM:&imgrefurl=http://www.toshibadirect.com/td/b2c/adet.to%253Fpoid%253D438342&docid=ia1HviAHJzvILM&w=300&h=300&ei=bYVPTvv_AZGIrAewxonMBQ&zoom=1&iact=rc&dur=295&page=1&tbnh=162&tbnw=162&start=0&ndsp=16&ved=1t:429,r:9,s:0&tx=19&ty=103
Edited by chip94 - 8/20/11 at 3:05am
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by chip94;14650905 
Yes it happens, I've had a seagate having trouble powering up in an external enclosure. Sometimes the HDD's just require a little extra while powering up.
I dont know why but this only happens with third party enclosures and not factory made ones like WD, seagate themselves.

Try to get a Y cable. It basically has two USB ports on the other end(one for data/ one for extra power)
http://www.google.co.in/imgres?q=external+hard+disk+Y+cable&um=1&hl=en&sa=N&biw=1366&bih=667&tbm=isch&tbnid=BG5r3HQsOaUjOM:&imgrefurl=http://www.toshibadirect.com/td/b2c/adet.to%253Fpoid%253D438342&docid=ia1HviAHJzvILM&w=300&h=300&ei=bYVPTvv_AZGIrAewxonMBQ&zoom=1&iact=rc&dur=295&page=1&tbnh=162&tbnw=162&start=0&ndsp=16&ved=1t:429,r:9,s:0&tx=19&ty=103

i got a y-cable, left over from my mobile usb modem, it didnt help, i doubt other y-cable would help, maybe the WD Scorpio has stricter power requirements compared to the Seagate Momentus, usb power just didnt help ..., the other solution would be to separate the power/data cable and connect improvised fashion ...gunner.gif
post #6 of 15
These are SATA drives right? If yes connect the WD to a desktop and run WD diagnostics, it may be having spinning up issues. This should not happen with a Y cable. Have you tried switching the Y cable? There can be a possibility of it going bad, very less though.

PLus- Was OCN down for a couple of minutes?
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post #7 of 15
Thread Starter 
Quote:
Originally Posted by chip94;14650934 
These are SATA drives right? If yes connect the WD to a desktop and run WD diagnostics, it may be having spinning up issues. This should not happen with a Y cable. Have you tried switching the Y cable? There can be a possibility of it going bad, very less though.

PLus- Was OCN down for a couple of minutes?

ok, i got a nexstar dock here, now trying to detect for spinup issues? never occured to me ...
post #8 of 15
Thread Starter 
Quote:
Originally Posted by helloicanseeu;14650945 
ok, i got a nexstar dock here, now trying to detect for spinup issues? never occured to me ...

nah, its the usb power supply issue, the hdd passed SMART short test.
post #9 of 15
Quote:
Originally Posted by helloicanseeu;14650945 
ok, i got a nexstar dock here, now trying to detect for spinup issues? never occured to me ...

Or just open HD tune when its connected to a desktop and post a screenshot of the health tab here
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post #10 of 15
Thread Starter 
Quote:
Originally Posted by chip94;14650974 
Or just open HD tune when its connected to a desktop and post a screenshot of the health tab here

if ubuntu tells u the drive is fine, its fine .. cool.gif
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