Additional psu for additional hard drives...

  • Thread starter Thread starter \(0v0\)
  • Start date Start date
0

\(0v0\)

I intend to build a server case and have an additional psu inserted to power
additional hard drives...

My question:
Is this possible to do this without the need of a motherboard to 'control'
the hard drives?
If so what connections are needed to have an external switch to power the
drives on and off?
Can I fool the psu in to thinking that a motherboard is running it?

Regards

Reply to: quiksilva AT dsl.pipex.com
Or to the group.
 
I intend to build a server case and have an additional psu inserted to power
additional hard drives...
Click to expand...
Why not just get a couple of 300GBs?
My question:
Is this possible to do this without the need of a motherboard to 'control'
the hard drives?
Click to expand...

Yeah but then what's the point in having the drives?
If so what connections are needed to have an external switch to power the
drives on and off?
Toggle?

Can I fool the psu in to thinking that a motherboard is running it?
Click to expand...
Yup. Either use an old AT PSU or there's a couple of pins to jump.
 
(0v0) said:
I intend to build a server case and have an additional psu inserted to power
additional hard drives...

My question:
Is this possible to do this without the need of a motherboard to 'control'
the hard drives?
If so what connections are needed to have an external switch to power the
drives on and off?
Can I fool the psu in to thinking that a motherboard is running it?
Click to expand...


all one need do is ground the green wire
to get the PS to turn on...
so just get a double pole switch and turn both supplies on at once...
or else turn the 2nd supply on first.

btw: you may want to use just a single supply of sufficient power
to handle all the drives...I think the power consumption of a single drive
is fairly small...maybe 15 watts or so...
but some SCSI drives can take quite a bit more on initial startup
 
Back
Top