OT: How many internal IDE drives maximum off of an ATX power supply?

[Tyler Aviss]

It depends on the power-supply and the wattage rating, as well as the
voltage on each rail of the PSU as well.

On 9/20/07, Salman Ahmed <fia_wrc_fanatic-/E1597aS9LQAvxtiuMwx3w at public.gmane.org> wrote:
> What's the maximum number of IDE (UltraDMA 100/133) drives that I can
> safely power from a ATX power supply (assuming that you have enough
> IDE/UDMA connectors of course)?
>
> I have an old PIII system (Abit BH6) in an ATX case that currently has
> 3 UltraDMA 100/133 hard drives connected to a Promise UltraDMA 133
> controller card. And I am wondering if it's OK to add a 4th such HD in
> there without running into any power supply issues.
>
> I am not sure what the wattage is of the power supply in the case but
> it is an ATX case. This system does not have an optical drive and the 3
> HDs connected to the Promise controller card are only ones in there
> presently.
>
> Thanks.
>
>
> Salman Ahmed
>
>
>
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