SOLVED? Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-07-15 Thread MacGuy


On Jun 24, 2009, at 7:23 AM, John Martz wrote:


 On Wed, Jun 24, 2009 at 7:10 AM, Ralph Greensfrea...@sbcglobal.net  
 wrote:

  As Peter said, the connectors for 2.5 and 3.5 SATA drives are the
 same.  But, the power draw is almost always a lot more on the 3.5
 drives.  A single USB port can supply 2.5 watts(.5 amps at 5V).

 My understanding when I read Jeff's note was that his enclosure was
 powered from an external 5v  12v AC-DC power supply, not from the
 USB port.

 What was confusing to me about Jeff's situation is that apparently the
 2.5 drive worked with USB (and I assumed also with eSATA ... though
 he may not have checked this).

 However, when he put the 3.5 drive into the enclosure it did not work
 with USB but it *did* work via eSATA.

 If it was strictly an enclosure power supply issue then I would expect
 the 3.5 drive to never work in the enclosure. Or USB to not work for
 either drive.

 I can't come up with a good rational for why the 3.5 drive would work
 with eSATA but *not* work with USB, other than possibly the 3.5 drive
 exceeded some GB capacity limit of the SATA-USB adapter/converter??

 Oh, well. Maybe it's gremlins? Makes as much sense to me as anything
 else at this point.

 -irrational john

Or maybe it's simply that I used the wrong cord (from wall to power  
supply?)... yes, it now works. Jeff

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-24 Thread Ralph Green

Howdy,
  As Peter said, the connectors for 2.5 and 3.5 SATA drives are the
same.  But, the power draw is almost always a lot more on the 3.5
drives.  A single USB port can supply 2.5 watts(.5 amps at 5V).  For
example, a Seagate 3.5 ST3500320AS 500 GB takes .65 amps at 5V and .42
ams at 12V.  USB does not supply 12V at all.  2.5 drives are almost
always 5V only and take around 2.5 watts(I've seen up to 5 watts).  So,
a 2.5 drive may work and a 3.5 almost never will.  Some higher power
2.5 drives need power from 2 USB ports.  I have burned out a USB port
from drawing too much power.
Good luck,
Ralph  

On Mon, 2009-06-22 at 19:55 -0400, John Martz wrote:

 If the 2.5 drive works with USB, then I would think there is no
 problem with USB. In other words, I'd expect the SATA-USB logic to
 either work or not work.



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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-24 Thread John Martz

On Wed, Jun 24, 2009 at 7:10 AM, Ralph Greensfrea...@sbcglobal.net wrote:

  As Peter said, the connectors for 2.5 and 3.5 SATA drives are the
 same.  But, the power draw is almost always a lot more on the 3.5
 drives.  A single USB port can supply 2.5 watts(.5 amps at 5V).

My understanding when I read Jeff's note was that his enclosure was
powered from an external 5v  12v AC-DC power supply, not from the
USB port.

What was confusing to me about Jeff's situation is that apparently the
2.5 drive worked with USB (and I assumed also with eSATA ... though
he may not have checked this).

However, when he put the 3.5 drive into the enclosure it did not work
with USB but it *did* work via eSATA.

If it was strictly an enclosure power supply issue then I would expect
the 3.5 drive to never work in the enclosure. Or USB to not work for
either drive.

I can't come up with a good rational for why the 3.5 drive would work
with eSATA but *not* work with USB, other than possibly the 3.5 drive
exceeded some GB capacity limit of the SATA-USB adapter/converter??

Oh, well. Maybe it's gremlins? Makes as much sense to me as anything
else at this point.

-irrational john

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread John Martz

On Mon, Jun 22, 2009 at 1:03 PM, MacGuymacgu...@gmail.com wrote:
 ok, got this 2.5 sata drive plugged into this 3.5 enclosure...
 question: can the power supplied to the 3.5 enclosure be too much for
 this 2.5 drive?

I've always gone by the rule that if they have exactly the same
connectors then they are/should be getting exactly the same power.
http://en.wikipedia.org/wiki/Serial_ATA#Power_supply

If the 2.5 drives have different power requirements than the 3.5
then I would think that is something which is handled internal to the
drive. But as always I am curious to see what other have to say.

-irrational john

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Bruce Johnson


On Jun 22, 2009, at 10:03 AM, MacGuy wrote:


 ok, got this 2.5 sata drive plugged into this 3.5 enclosure...
 question: can the power supplied to the 3.5 enclosure be too much for
 this 2.5 drive? (what I'm doing is testing the enclosure to see if
 it's good, and the only drive I have to use is a 2.5 sata drive from a
 mac mini). Jeff

No. So long as you can connect them (and both 2.5 and 3.5 drives  
require the same volatges) things should work out fine.

-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs



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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread John Martz

On Mon, Jun 22, 2009 at 2:00 PM, Bruce
Johnsonjohn...@pharmacy.arizona.edu wrote:

 No. So long as you can connect them (and both 2.5 and 3.5 drives
 require the same voltages) things should work out fine.

I don't know how pertinent to this thread this is, but I'm not
positive they use the same voltages.

I agree that since both 2.5  3.5 drives use the same connector then
the same voltages should be *supplied* to the drive. However, I don't
know how they could pull off the trick of powering a 2.5 drive from a
USB connector unless the 2.5 drives required anything other than 5v.

I've always assumed that the 2.5 drives simply ignored the 12v power
line in the connector (and probably also the 3.3v ... as apparently
most (all?) of the 3.5 drives do in order to allow them to be powered
via a 5v  12v 4-pin molex connector plugged into a SATA power
connector adapter).

I hate it when manufacturers take shortcuts and don't fully
implement a spec. But it's a fact of life that they do this when
everbody knows it will work. It wouldn't surprise me at all if the
12v (and 3.3v) pins on most laptop supplies were open.

Sorry to view off point so far.

-irrational john

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread MacGuy


On Jun 22, 2009, at 11:14 AM, John Martz wrote:


 On Mon, Jun 22, 2009 at 2:00 PM, Bruce
 Johnsonjohn...@pharmacy.arizona.edu wrote:

 No. So long as you can connect them (and both 2.5 and 3.5 drives
 require the same voltages) things should work out fine.

 I don't know how pertinent to this thread this is, but I'm not
 positive they use the same voltages.

 I agree that since both 2.5  3.5 drives use the same connector then
 the same voltages should be *supplied* to the drive. However, I don't
 know how they could pull off the trick of powering a 2.5 drive from a
 USB connector unless the 2.5 drives required anything other than 5v.

 I've always assumed that the 2.5 drives simply ignored the 12v power
 line in the connector (and probably also the 3.3v ... as apparently
 most (all?) of the 3.5 drives do in order to allow them to be powered
 via a 5v  12v 4-pin molex connector plugged into a SATA power
 connector adapter).

 I hate it when manufacturers take shortcuts and don't fully
 implement a spec. But it's a fact of life that they do this when
 everbody knows it will work. It wouldn't surprise me at all if the
 12v (and 3.3v) pins on most laptop supplies were open.

 Sorry to view off point so far.

 -irrational john


Well after plugging the 2.5 into the I/O board and the power supply,  
the 2.5 booted and ran fine. However when the 3.5 drive was used, it  
wouldn't even mount on the desktop? This icydock enclosure has always  
given me grief when it was hooked up via USB... it would unmount  
itself after 3 mins or less time plugged/ mounted on the desktop? This  
must be a power supply issue then... wonder where to get another power  
supply for it? I hate to chuck it in the trash Jeff

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Bruce Johnson


On Jun 22, 2009, at 11:34 AM, MacGuy wrote:

 Well after plugging the 2.5 into the I/O board and the power supply,
 the 2.5 booted and ran fine. However when the 3.5 drive was used, it
 wouldn't even mount on the desktop? This icydock enclosure has always
 given me grief when it was hooked up via USB... it would unmount
 itself after 3 mins or less time plugged/ mounted on the desktop? This
 must be a power supply issue then... wonder where to get another power
 supply for it?

Definitely sounds like a power issue, what does the spec on the  
current power supply say? If it's a typical wall wart all you need to  
match are the voltage, the connector size and polarity and provide as  
much or more current.

(ie: if it's 12v 500MA, a 12V 800MA supply will work just fine, but a  
14V 500MA supply will not.)

That said, 'sounds like a power issue' doesn't mean it's the power  
supply. More than likely it's the IO board in the enclosure.

If it's a built-in power supply, I'd forget about it; get a new  
enclosure. If USB2 is good for you they're cheap 
http://www.geeks.com/products.asp?cat=CSE 
 


-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs



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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread insightinmind




 On Jun 22, 2009, at 11:14 AM, John Martz wrote:


 Well after plugging the 2.5 into the I/O board and the power supply,
 the 2.5 booted and ran fine. However when the 3.5 drive was used, it
 wouldn't even mount on the desktop? This icydock enclosure has always
 given me grief when it was hooked up via USB... it would unmount
 itself after 3 mins or less time plugged/ mounted on the desktop? This
 must be a power supply issue then... wonder where to get another power
 supply for it? I hate to chuck it in the trash Jeff


Is the 3.5 drive jumpered correctly? (do SATA drives still have  
jumper requirements?)

Is the 3.5 drive bad, and not the enclosure?

Bill Connelly
artsite: http://mysite.verizon.net/moonstoneartstudio
myspace: http://www.myspace.com/moonstoneartstudio




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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Clark Martin

John Martz wrote:
 On Mon, Jun 22, 2009 at 2:00 PM, Bruce
 Johnsonjohn...@pharmacy.arizona.edu wrote:
 No. So long as you can connect them (and both 2.5 and 3.5 drives
 require the same voltages) things should work out fine.
 
 I don't know how pertinent to this thread this is, but I'm not
 positive they use the same voltages.
 
 I agree that since both 2.5  3.5 drives use the same connector then
 the same voltages should be *supplied* to the drive. However, I don't
 know how they could pull off the trick of powering a 2.5 drive from a
 USB connector unless the 2.5 drives required anything other than 5v.
 
 I've always assumed that the 2.5 drives simply ignored the 12v power
 line in the connector (and probably also the 3.3v ... as apparently
 most (all?) of the 3.5 drives do in order to allow them to be powered
 via a 5v  12v 4-pin molex connector plugged into a SATA power
 connector adapter).
 
 I hate it when manufacturers take shortcuts and don't fully
 implement a spec. But it's a fact of life that they do this when
 everbody knows it will work. It wouldn't surprise me at all if the
 12v (and 3.3v) pins on most laptop supplies were open.

The standard 3.5  5.25 drive power connector supplies +12V and +5V. 
2.5 drives only need 5V so they would just use that power line.  There 
is no 3.3V line on drive power cables.





-- 
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

I'm a designated driver on the Information Super Highway

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread John Martz

On Mon, Jun 22, 2009 at 2:34 PM, MacGuymacgu...@gmail.com wrote:

 This icydock enclosure has always
 given me grief when it was hooked up via USB... it would unmount
 itself after 3 mins or less time plugged/ mounted on the desktop? This
 must be a power supply issue then... wonder where to get another power
 supply for it? I hate to chuck it in the trash Jeff

Which ICY DOCK enclosure? Just curious ... I occasionally look at the
ICY DOCK MB881US-1S-1
http://www.newegg.com/Product/Product.aspx?Item=N82E16817198029
and go Hmm but (1) it costs more than I'd want to pay and
(2) the *last* thing I need is yet another enclosure.

You say it has given you grief when used via USB. Does it have another
mode (eSATA perhaps?) where it works reliably? If that's the case then
I'd suspect the SATA-USB logic board rather than the power supply. (I
expect there's not much if any logic required to convert SATA
-eSATA.)

No chance the enclosure is still under warranty?

-irrational john

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread John Martz

On Mon, Jun 22, 2009 at 2:55 PM, Clark Martincm...@sonic.net wrote:
 The standard 3.5  5.25 drive power connector supplies +12V and +5V.
 2.5 drives only need 5V so they would just use that power line.  There
 is no 3.3V line on drive power cables.

I'm not sure exactly what you mean. Yes, I think all the external
power supplies I've seen have only supplied at most +12v and +5v.

But the SATA spec apparently specifies that pins 1 to 3 of a standard
15 pin SATA power connector should supply 3.3 volts. I doubt any of
the current 3.5 drives actually depend on this, but it's apparently
part of the spec.

I don't know about 2.5 drives, but I suspect they only need 5 volts
as you said.

I've seen speculation that some of the solid state memory drives might
require the 3.3v supply, but it was just speculation. I really have no
idea why the SATA power connector is supposed to provide 3.3 volts to
some pins. But apparently that's what the spec says.

(I thought about ... and immediately rejected ... poking around with a
volt meter in my SATA external enclosure's power connector to see what
it supplies to pins 1 to 3. Knowing me, I would be sure to short some
pins to ground and destroy a perfectly good enclosure. A geek's gotta
know his limitations ...)

-irrational john

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread insightinmind


On Jun 22, 2009, at 2:51 PM, insightinmind wrote:
 On Jun 22, 2009, at 11:14 AM, John Martz wrote:

 Well after plugging the 2.5 into the I/O board and the power supply,
 the 2.5 booted and ran fine. However when the 3.5 drive was used, it
 wouldn't even mount on the desktop? This icydock enclosure has always
 given me grief when it was hooked up via USB... it would unmount
 itself after 3 mins or less time plugged/ mounted on the desktop?  
 This
 must be a power supply issue then... wonder where to get another  
 power
 supply for it? I hate to chuck it in the trash Jeff


 Is the 3.5 drive jumpered correctly? (do SATA drives still have
 jumper requirements?)

 Is the 3.5 drive bad, and not the enclosure?


I guess I should have also asked ... how did you know the 2.5 drive  
was working? Did it mount on your desktop? and was that through the  
USB? Did you decide the 2.5 and 3.5 both required the same voltage?

If all true, it sounds more like the 3.5 drive is bad.

Have you tried the 3.5 drive elsewhere? (apologies if you state this  
earlier in the thread).

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Clark Martin

John Martz wrote:
 On Mon, Jun 22, 2009 at 2:55 PM, Clark Martincm...@sonic.net wrote:
 The standard 3.5  5.25 drive power connector supplies +12V and +5V.
 2.5 drives only need 5V so they would just use that power line.  There
 is no 3.3V line on drive power cables.
 
 I'm not sure exactly what you mean. Yes, I think all the external
 power supplies I've seen have only supplied at most +12v and +5v.
 
 But the SATA spec apparently specifies that pins 1 to 3 of a standard
 15 pin SATA power connector should supply 3.3 volts. I doubt any of
 the current 3.5 drives actually depend on this, but it's apparently
 part of the spec.
 
 I don't know about 2.5 drives, but I suspect they only need 5 volts
 as you said.
 
 I've seen speculation that some of the solid state memory drives might
 require the 3.3v supply, but it was just speculation. I really have no
 idea why the SATA power connector is supposed to provide 3.3 volts to
 some pins. But apparently that's what the spec says.
 
 (I thought about ... and immediately rejected ... poking around with a
 volt meter in my SATA external enclosure's power connector to see what
 it supplies to pins 1 to 3. Knowing me, I would be sure to short some
 pins to ground and destroy a perfectly good enclosure. A geek's gotta
 know his limitations ...)

I haven't looked into the SATA spec but I would think that in time the 
drives will use 3.3V for the logic in place of 5V.  Most computer logic 
is going this way.

A lower power supply voltage means not only lower power consumption but 
also faster speed.


-- 
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

I'm a designated driver on the Information Super Highway

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread MacGuy


On Jun 22, 2009, at 4:08 PM, insightinmind wrote:

 I guess I should have also asked ... how did you know the 2.5 drive
 was working? Did it mount on your desktop? and was that through the
 USB? Did you decide the 2.5 and 3.5 both required the same voltage?

 If all true, it sounds more like the 3.5 drive is bad.

 Have you tried the 3.5 drive elsewhere? (apologies if you state this
 earlier in the thread).

2.5 mounted on the desktop via USB, I booted from a leopard volume on  
it..all looked ok. Then I connected the 3.5 (which works perfectly in  
several other macs/ and enclosures) and it would not even mount. The  
drive would spin up light comes on, that's it.   I looked at  
reviews of this particular icydock enclosure and other people had  
power issues as well... strange... don't think I'll be buying another  
one of these.
I am open to other good quality enclosures..

John Martz

As for the one I'm having troubles with: 
http://www.icydock.com/product/mb664us-1s.html
It has esata.. and funny that you'd ask, yes it worked great via esata  
connection. And lastly, no, it's not under warranty. Jeff

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread insightinmind

On Jun 22, 2009, at 7:23 PM, MacGuy wrote:


 On Jun 22, 2009, at 4:08 PM, insightinmind wrote:

 Have you tried the 3.5 drive elsewhere? (apologies if you state this
 earlier in the thread).

 2.5 mounted on the desktop via USB, I booted from a leopard volume on
 it..all looked ok. Then I connected the 3.5 (which works perfectly in
 several other macs/ and enclosures) and it would not even mount. The
 drive would spin up light comes on, that's it.

About boot-a-bility of external USB drives ... is that OS X (Leopard  
vrs Tiger) dependent in any way? I thought I read somewhere that USB  
2 bootable became good (or was that became flaky?) under Leopard,  
and was not good under Tiger. If so, what OS were you trying to boot  
from on the 3.5 drive?

I'll stop here ...

Bill Connelly
artsite: http://mysite.verizon.net/moonstoneartstudio
myspace: http://www.myspace.com/moonstoneartstudio

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Doug Burton

On Jun 22, 2009, at 1:03 PM, MacGuy wrote:


 ok, got this 2.5 sata drive plugged into this 3.5 enclosure...
 question: can the power supplied to the 3.5 enclosure be too much for
 this 2.5 drive? (what I'm doing is testing the enclosure to see if
 it's good, and the only drive I have to use is a 2.5 sata drive from a
 mac mini). Jeff

 Jeffrey Engle
 macgu...@gmail.com
 PowerMac G4

No, I have a Vantec  NexStar USB/SATA HD dock and the 2.5 and 3.5  
drives plug into the same power and data connectors.  HTH

Just a message from Doug...

http://groups.google.com/group/hq-a + A home for the Hackintosh  
community.

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+subscr...@googlegroups.com





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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread MacGuy


On Jun 22, 2009, at 4:35 PM, insightinmind wrote:


 On Jun 22, 2009, at 7:23 PM, MacGuy wrote:


 On Jun 22, 2009, at 4:08 PM, insightinmind wrote:

 Have you tried the 3.5 drive elsewhere? (apologies if you state this
 earlier in the thread).

 2.5 mounted on the desktop via USB, I booted from a leopard volume on
 it..all looked ok. Then I connected the 3.5 (which works perfectly in
 several other macs/ and enclosures) and it would not even mount. The
 drive would spin up light comes on, that's it.

 About boot-a-bility of external USB drives ... is that OS X (Leopard
 vrs Tiger) dependent in any way? I thought I read somewhere that USB
 2 bootable became good (or was that became flaky?) under Leopard,
 and was not good under Tiger. If so, what OS were you trying to boot
 from on the 3.5 drive?

 I'll stop here ...


I'm using an intel-based mini for the booting of that usb connected  
enclosure (all the intel based macs boot from usb without issues) I  
don't believe that PPC macs ever did. Jeff

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread John Martz

 As for the one I'm having troubles with: 
 http://www.icydock.com/product/mb664us-1s.html
 It has esata.. and funny that you'd ask, yes it worked great via esata
 connection. And lastly, no, it's not under warranty. Jeff

OK, I'm stumped and am now waiting for someone else to post the
obvious explanation which is escaping me.

If the 2.5 drive works with USB, then I would think there is no
problem with USB. In other words, I'd expect the SATA-USB logic to
either work or not work.

But if the 3.5 drive works with eSATA, then I would assume there is
no problem with the power supply provided by the enclosure to the
drive.

So why wouldn't the 3.5 drive *also* work with USB?

Is there a big difference between the capacities of the two drives?
(Maybe there USB has a capacity limit?) Was the 3.5 drive partitioned
 formatted? Did you try more than one USB connector or connecting to
another computer? Sorry, I realize that these questions aren't that
helpful, but I've got nothing else. :-(

-irrational john

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread MacGuy


On Jun 22, 2009, at 4:55 PM, John Martz wrote:


 As for the one I'm having troubles with: 
 http://www.icydock.com/product/mb664us-1s.html
 It has esata.. and funny that you'd ask, yes it worked great via  
 esata
 connection. And lastly, no, it's not under warranty. Jeff

 OK, I'm stumped and am now waiting for someone else to post the
 obvious explanation which is escaping me.

 If the 2.5 drive works with USB, then I would think there is no
 problem with USB. In other words, I'd expect the SATA-USB logic to
 either work or not work.

 But if the 3.5 drive works with eSATA, then I would assume there is
 no problem with the power supply provided by the enclosure to the
 drive.

 So why wouldn't the 3.5 drive *also* work with USB?

 Is there a big difference between the capacities of the two drives?
 (Maybe there USB has a capacity limit?) Was the 3.5 drive partitioned
  formatted? Did you try more than one USB connector or connecting to
 another computer? Sorry, I realize that these questions aren't that
 helpful, but I've got nothing else. :-(

 -irrational john


Hey john... what's your number, I'll call ya or you me at  
208-935-0992, Jeff

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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread PeterH


On Jun 22, 2009, at 4:55 PM, John Martz wrote:

 Is there a big difference between the capacities of the two drives?

2.5 SATA has the very same power and data connectors as all current  
3.5 SATA.

2.5 SATA goes to 500 GB.

3.5 SATA goes to 1.5 TB (1500 GB), with 2 TB (2000 GB) being sampled.

As most host SATA buses are supporting 3.0 Gb/s, there is probably no  
need for 1.5 Gb/s, or the jumper which forces a drive to 1.5 Gb/s.

The iSATA/eSATA cards for most G series Macs are 1.5 Gb/s, but the  
jumper really isn't necessary as the drive and the host will mutually  
determine the best speed.

My Initio-based G4 cards (1.5 Gb/s) are perfectly happy with my eSATA  
drives which are jumpered for 3.0 Gb/s, and which I use  
interchangeably on my Intel Hackintoshes, all of which, even my Intel  
Atom Netbook, are 3.0 Gb/s.



http://groups.google.com/group/hq-a + A home for the Hackintosh  
community.

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+subscr...@googlegroups.com




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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Doug Burton

On Jun 22, 2009, at 7:55 PM, John Martz wrote:


 As for the one I'm having troubles with: http://www.icydock.com/ 
 product/mb664us-1s.html
 It has esata.. and funny that you'd ask, yes it worked great via  
 esata
 connection. And lastly, no, it's not under warranty. Jeff

 OK, I'm stumped and am now waiting for someone else to post the
 obvious explanation which is escaping me.

 If the 2.5 drive works with USB, then I would think there is no
 problem with USB. In other words, I'd expect the SATA-USB logic to
 either work or not work.

 But if the 3.5 drive works with eSATA, then I would assume there is
 no problem with the power supply provided by the enclosure to the
 drive.

 So why wouldn't the 3.5 drive *also* work with USB?

 Is there a big difference between the capacities of the two drives?
 (Maybe there USB has a capacity limit?) Was the 3.5 drive partitioned
  formatted? Did you try more than one USB connector or connecting to
 another computer? Sorry, I realize that these questions aren't that
 helpful, but I've got nothing else. :-(

 -irrational john

Actually, USB-SATA (or IDE for that matter) connections do tend to be  
a bit more complicated than the direct connect eSATA.  Keep in mind  
you are going through a mess of interfaces with any one of them being  
able to mess up the entire connection at any time.  It can be a bit  
flaky at times also, especially if you disconnect one drive and  
insert another.  The eSATA connection is almost a direct connection  
to the motherboard with just a cable switch.HTH

Just a message from Doug...

http://groups.google.com/group/hq-a + A home for the Hackintosh  
community.

To subscribe to the HQ-A group, send email to hq-a 
+subscr...@googlegroups.com





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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread insightinmind


 I honestly don't know why the thing works with everything BUT 3.5
 drives using the USB interface? just strange.


Is the size of the drive that's not working, making it push on  
something USB internally, that is shutting down that capability?

2.5 small ... 3.5 bigger ... i.e., does size matter?

Bill Connelly
artsite: http://mysite.verizon.net/moonstoneartstudio
myspace: http://www.myspace.com/moonstoneartstudio




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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread Doug Burton

On Jun 22, 2009, at 9:24 PM, insightinmind wrote:



 I honestly don't know why the thing works with everything BUT 3.5
 drives using the USB interface? just strange.


 Is the size of the drive that's not working, making it push on
 something USB internally, that is shutting down that capability?

 2.5 small ... 3.5 bigger ... i.e., does size matter?

 Bill Connelly
 artsite: http://mysite.verizon.net/moonstoneartstudio
 myspace: http://www.myspace.com/moonstoneartstudio

I think most docks are setup to accommodate either size, I know mine  
has a cutout in the little access door for a 2.5 drive and if you  
insert the larger 3.5 drive the door is spring loaded and just  
collapses to allow the bigger drive insertion.  HTH

Just a message from Doug...

http://groups.google.com/group/hq-a + A home for the Hackintosh  
community.

To subscribe to the HQ-A group, send email to hq-a 
+subscr...@googlegroups.com





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Re: sata 2.5 plugged into a 3.5 sata enclosure?

2009-06-22 Thread insightinmind


On Jun 22, 2009, at 9:24 PM, insightinmind wrote:



 I honestly don't know why the thing works with everything BUT 3.5
 drives using the USB interface? just strange.


 Is the size of the drive that's not working, making it push on
 something USB internally, that is shutting down that capability?

 2.5 small ... 3.5 bigger ... i.e., does size matter?



In one of the other models, the following switching bug is noted:
***
While the rear panel Interface Converter Switch switched to eSATA  
interface, it only support SATA I transfer rate.
This is known issue and should be fixed in future releases.

Please switch to USB interface.

Note: While the enclosure is switched to USB interface, both USB and  
eSATA interface works and supports SATA II transfer rate via eSATA.

Maybe the switch is being blocked by the bigger drive? or did you not  
switch to USB/eSATA from eSATA only?

Bill Connelly
artsite: http://mysite.verizon.net/moonstoneartstudio
myspace: http://www.myspace.com/moonstoneartstudio




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