Suitable PSU for SATA interface+drives

[NoSp]

I've just bought a dual Firewire/USB to SATA bridge board
(http://www.span.com/catalog/product_info.php?cPath=1308&products_id=7656).

It will be placed in an external enclosure and house two SATA drives.
What kind of power supply will be suitable for all of this?
I hate "wall warts" so common for external hard drives and aim for a
self-contained PSU which will mount inside the enclosure alongside the
drives and the mentioned PCB.
The enclosure will be a self made 19" rack enclosure with shock-mounts
to protect the drives and remove any vibration noise.

 

[Bob]

I've just bought a dual Firewire/USB to SATA bridge board
(http://www.span.com/catalog/product_info.php?cPath=1308&products_id=7656).

It will be placed in an external enclosure and house two SATA drives.
What kind of power supply will be suitable for all of this?
I hate "wall warts" so common for external hard drives and aim for a
self-contained PSU which will mount inside the enclosure alongside the
drives and the mentioned PCB.
The enclosure will be a self made 19" rack enclosure with shock-mounts
to protect the drives and remove any vibration noise.

Do you have size or other requirements that prevent you using a
standard
PC power supply?

Bob

 

[NoSp]

Do you have size or other requirements that prevent you using a
standard
PC power supply?

Aren't most PC power supplies quite big?
I'll be aiming at using a 1U height rack enclosure which will house the
two drives, the interface board and power supply. It can't be very big.
And how much current should the PSU give out at which voltages?

I don't have a pinout, but a connector which seems to be standard like
the ones used for hard drives, CD-ROM units etc. is provided for the
bridge board. It's color coded like this:

Yellow-black-black-red

 

[Andy]

Aren't most PC power supplies quite big?
I'll be aiming at using a 1U height rack enclosure which will house the
two drives, the interface board and power supply. It can't be very big.
And how much current should the PSU give out at which voltages?

I don't have a pinout, but a connector which seems to be standard like
the ones used for hard drives, CD-ROM units etc. is provided for the
bridge board. It's color coded like this:

Yellow-black-black-red

That connector is what a 3-1/2" floppy drive has. Like a floppy, the
bridge board uses only +5 volts. The SATA drives use +5 volts and +12
volts.

 

[ChairmanOfTheBored]

Do you have size or other requirements that prevent you using a
standard
PC power supply?

Bob

Not only that but external HD enclosures that yes, do use a dongle type
"wall wart" PS (so what?) are very quiet and vibration free. They are
also eSATA and USB capable. Great as a portable drive, or as in your
case, a home made enclosure installation. As far as it having wall warts
goes, whoopie doo, it's in your "rack enclosure", which should have power
strips in it for powering the components or your "rack". Why would you
even care? If you are making some kind of chassis that you can slide
drives in and out of, then you should already know that your cheapest
solution is to buy one of the power supplies you have been using for PCs.

 

[ChairmanOfTheBored]

Aren't most PC power supplies quite big?
I'll be aiming at using a 1U height rack enclosure which will house the
two drives, the interface board and power supply. It can't be very big.
And how much current should the PSU give out at which voltages?

I don't have a pinout, but a connector which seems to be standard like
the ones used for hard drives, CD-ROM units etc. is provided for the
bridge board. It's color coded like this:

Yellow-black-black-red

You have way overcomplicated this.

There are 1u server chassis out there WITH STABDARD computer power
supplies in them, that are meant to power a minimum of two hard drives,
and a mother board. They can certainly handle your two hard drive
scenario. they would also have the rear of the drive PS connectors in
them already. Not only that, but they would have cooling fans, and
mounting stations for the hard drives.

If you want quieter than that, then external enclosures are the only
way to go. They beat that dead horse many moons ago.