Added hard drive - but only have 4-pin molex - no available SATA power cables

Mark Lloyd wrote:
On 06/03/2018 05:50 AM, Stephen Wolstenholme wrote:

[snip]

All my drives are USB powered. They don't need a separate power
supply. The one I like most is made by Verbartim. It is a Verbatim
53177 2TB Store and Go. That capacity would have taken up a whole
floor when I started working on computers about 40 years ago. How
things have changed!

Steve

About that time I had a job interview at a major aircraft plant. They
showed me their computer room, which had 3 washing-machine sized hard
drives with a total capacity of 1.5GB.

Now I'm trying to imagine 1,3334 times that, as would be required to
hold 2TB.

Now try to imagine 6,168,094 [1] times this washing-machine sized
dis[c|k] drive:

http://www.hpmuseum.net/display_item.php?hw=548

We actually sold/ran/supported 32-user systems which had one of these
ones. A whopping 10KB per user!

[1] I hope I calculated this right. Never mind multiplying/dividing by
1000 versus 1024.

Sam E wrote:
On 06/02/2018 02:47 PM, VanguardLH wrote:

[snip]

SATA HDD with just the Molex power connector:
https://qph.fs.quoracdn.net/main-qim...d9c7ff71f5a7-c

So what looks like a SATA power connector must not work.

[snip]

No, both power connectors work.

But the recommendation is not to connect a SATA 15 pin
and a Molex 4 pin at the same time. And the "corner case"
for this is so obscure, it's hardly worth mentioning.

Normal I/O looms will be using the same 12Vn output for
powering drives. All the power will be coming from the
same 12V and there won't be a loop.

There were a few supplies with four independent 12V transformers
inside. This would give a 12V1, 12V2, 12V3, 12V4 supply. It was
very confusing as to which supply went where. The owner of such
a supply, was well advised to find a block diagram of the looms,
and make sure it was understood before installing the supply.

If (somehow) one drive power source ran off 12V3 and one off 12V4,
you wouldn't want current flow between the two connectors,
because it could burn something (burn the pins on a connector).

It's for that obscure reason, you're not supposed to plug
in the SATA 15 pin and the Molex 4 pin on a drive like
that, at the same time. The chances of that happening
are pretty damn close to zero (cross-flow).

Now, a person *could* put two separate ATX supplies in
a machine, and run 12V from one supply to the SATA, and
12V from a second supply to the Molex. So that's another
way you could encourage cross-flow.

Paul

On Sun, 3 Jun 2018 10:57:00 -0500, Mark Lloyd
wrote:

On 06/03/2018 05:50 AM, Stephen Wolstenholme wrote:

[snip]

All my drives are USB powered. They don't need a separate power
supply. The one I like most is made by Verbartim. It is a Verbatim
53177 2TB Store and Go. That capacity would have taken up a whole
floor when I started working on computers about 40 years ago. How
things have changed!

Steve

About that time I had a job interview at a major aircraft plant. They
showed me their computer room, which had 3 washing-machine sized hard
drives with a total capacity of 1.5GB.



Three was a small number. Back in those days (and maybe still today),
there were many computer rooms with dozens of such drives. They were
often called DASD farms.

Peter Jason wrote:
....
I use a quality power board ....
https://postimg.cc/image/ng7tr8bgt/
with individual switches. The board is fixed to
the wall, to get it off the bench, with plumber's
roofing silicone (use a broom handle or similar to
hold it until the silicone sets (usually
overnight)) and this gives a secure fix without
any drilling for screw holes etc. To remove it,
use a bread knife of similar to prise it off.
I have several, & they work OK; but buy the
quality ones.

Do you even open that window blind and its window? Things look like they
can fall over! :O

--
Quote of the Week: "... Here's intelligent things, and it seems they
want us for food. First, they'll smash us up -- ships, machines, guns,
cities, all the order and organisation. All that will go. If we were the
size of ants we might pull through. But we're not. It's all too bulky to
stop. That's the first certainty." Eh? ..." --H.G. Wells' The War of the
Worlds
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In message , Paul
writes:
Sam E wrote:
On 06/02/2018 02:47 PM, VanguardLH wrote:
[snip]

SATA HDD with just the Molex power connector:
https://qph.fs.quoracdn.net/main-qim...d9c7ff71f5a7-c
So what looks like a SATA power connector must not work.
[snip]

No, both power connectors work.

I think Sam E was just saying that, if that is the case, VanguardLH's
word "just" is incorrect.

But the recommendation is not to connect a SATA 15 pin
and a Molex 4 pin at the same time. And the "corner case"
for this is so obscure, it's hardly worth mentioning.
[]
Separate 12V supplies.
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

I have never liked children, even when I was one.
- Miriam Margolyes (RT 2014/11/1-7)

Bennett Price wrote:

On 6/3/2018 2:02 AM, Lucifer Morningstar wrote:
On Sat, 2 Jun 2018 14:47:50 -0500, VanguardLH wrote:

I didn't bother to verify Lucy's claim that there are "still" HDDs
around with a Molex power connector. I didn't notice any being
currently sold at Newegg; however, Newegg doesn't sell everything
currently available, so I've had to go elsewhere for more unique
hardware.

More unique is impossible as unique means one only.


Just get a molex-sata adapter cable: https://goo.gl/JZWkGY

https://smile.amazon.com/Power-Cable...+adapter&psc=1

Which I and others already previously mentioned. I only replied in THIS
subthread to Char's inquiry about SATA drives with Molex power
connectors.

On 06/03/2018 03:59 PM, J. P. Gilliver (John) wrote:

[snip]

SATA HDD with just the Molex power connector:
https://qph.fs.quoracdn.net/main-qim...d9c7ff71f5a7-c

Â*So what looks like a SATA power connector must not work.
Â*[snip]

No, both power connectors work.

I think Sam E was just saying that, if that is the case, VanguardLH's
word "just" is incorrect.

yes

[snip]

On Sat, 02 Jun 2018 19:42:44 -0500, Char Jackson
wrote:

On Sun, 03 Jun 2018 10:28:19 +1000, Peter Jason wrote:

On Fri, 01 Jun 2018 22:55:58 -0400, Paul
wrote:

Peter Jason wrote:
You can by-pass all this, and reduce the clutter
and tangle by using one of these.....
https://www.aliexpress.com/item/2-5-...354341581.html

I have two for 3 HDD & an SSD and I'm getting a
third for some old IDE HDDs.

Note for the power they plug into a wall socket
via a small transformer.


And how many wall adapters do you have so far ?

I have eight of them right now.

I don't really have room for any more. There
are no good bays left for them. (Some of mine are
mounted in 3D, using cross-shaped 1 to 3 adapters.)

These things are great. And give you extra mileage from
your power strip. You may not be able to use these
on adjacent strip outlets, as you need them to be
spaced to make room for the height of the adapter.
I have around four power strips (the one for the
wall adapters is switched).

https://www.amazon.com/3-grounded-Ou.../dp/B0065N2T5A

*******

Some of the docks aren't properly ballasted so they
stay put. They can also transfer vibration to the drive
(versus a tray that uses silicon grommets for shock relief).

Paul

I use a quality power board ....
https://postimg.cc/image/ng7tr8bgt/
with individual switches. The board is fixed to
the wall, to get it off the bench, with plumber's
roofing silicone (use a broom handle or similar to
hold it until the silicone sets (usually
overnight)) and this gives a secure fix without
any drilling for screw holes etc. To remove it,
use a bread knife of similar to prise it off.
I have several, & they work OK; but buy the
quality ones.

In your first post, you referred to "reduce the clutter and tangle."
After viewing your photo, I see that you were joking. What a mess.



.....uh, well you should have seen it before I
tidied it up.

Sam E wrote:

VanguardLH wrote:

SATA HDD with just the Molex power connector:
https://qph.fs.quoracdn.net/main-qim...d9c7ff71f5a7-c

So what looks like a SATA power connector must not work.

Why I mentioned that only ONE of the power connectors should be used on
those SATA drives. BOTH are usable but use only ONE. Besides, there is
no value in using both power connectors at the same time. I suppose
some noobs would see an unused connector and just must fill it.

On Sun, 03 Jun 2018 15:24:16 -0500,
(Ant) wrote:

Peter Jason wrote:
...
I use a quality power board ....
https://postimg.cc/image/ng7tr8bgt/
with individual switches. The board is fixed to
the wall, to get it off the bench, with plumber's
roofing silicone (use a broom handle or similar to
hold it until the silicone sets (usually
overnight)) and this gives a secure fix without
any drilling for screw holes etc. To remove it,
use a bread knife of similar to prise it off.
I have several, & they work OK; but buy the
quality ones.

Do you even open that window blind and its window? Things look like they
can fall over! :O

Never. The glare from the morning sun, the noise
from hundreds of container trucks, the dust thrown
up by them, and the cold and the heat and rain he
flies etc make this unadvisable.