Date   : Sun, 23 Oct 2005 00:18:56 +0100
From   : "Ian Wolstenholme" <BBCMailingList@...>
Subject: Re: Master power supply ratings

Actually my earlier message reminded me to have another go
with the old Rodime RO352 (2.5A at 12V, 0.6A at 5V) which had thus
far refused to format, always giving Error 24 in format on Superform
when it does the first re-format.  However I modified SuperForm to
take out the loop so it only does one format and then goes onto to
write the map & root directory so now it works!  There's about 80
errors in the defect list but at least it's usable!

It was running from the Master PSU probably for about 2 hours
without any problems.

I still can't get the NEC D3142 to format.  It just formats FOREVER,
never getting out of the first attempt.

Best wishes,


Ian

----- Original Message -----
From: Jules Richardson
To:  bbc-micro@...
Sent: Sat, 22 Oct 2005 17:29:52 +0100
Subject: Re: [BBC-Micro] Master power supply ratings

Ian Wolstenholme wrote:
> I have successfully run old ST506 hard drives requiring 2.5A off
> the Master auxilary output although this is probably not recommended!
> 
> No bangs or pops yet though.........

Wow - I'm really surprised you got away with that. Even the original IBM 
PC used to shut down when loaded up with a hard disk (that PSU was rated 
at 63W though IIRC)

I suppose I'd be more concerned about PSU overheating that anything as 
there's no fan and it's tucked away in the corner of the case with a lot 
of plastic around it. But if it works.... :)

cheers

Jules