[coco] A couple of PC hardware questions

[peak at mail.polarcomm.com]

No No NO
Do NOT short the VSB line to ground!! Not even momentarily!!
Instead you must connect the "PS-ON" line to groung! In my 
ATX supply the PS-ON wire is grey and the VSB line is BRown 
but these colors may be different on yours! Also my ATX 
supply has two different strings of power cables for the 
drives. I at first thought that loading either one was the 
same as loading both but that did not work. When I placed the 
load on the correct string it turned on!!
Eric


---- Original message ----
>Date: Sat, 17 Jan 2004 07:34:03 -0800 (PST)
>From: Bob Emery <theother_bob at yahoo.com>  
>Subject: Re: [coco] A couple of PC hardware questions  
>To: rayanddoraleew at earthlink.net, CoCoList for Color 
Computer Enthusiasts <coco at maltedmedia.com>
>
>
>--- Ray Watts <rayanddoraleew at earthlink.net> wrote:
>> Mark,  That REALLY deserves a WOW!  Note that I still have 
not
>> received any replies except for your bit on the internal 
ZIP drives.
>> 
>> Cheers, Griz
>> >>>>1.  What is the difference between an AT and an ATX 
power supply?
>> I note that the specs for an ATX show a +5V VSB lead.  How 
is that
>> used?
>
>This is from memory, don't take this as gospel. For the 
gospel, search
>Google. Basically there is a +5V line (probably the one that 
you
>mention) that stays active when the computer is OFF. ISTR 
it's usually
>a grey wire and you momentarily short it to ground to get 
the PS to
>turn on. You MUST have a load attached! at least an IDE 
drive or
>something before it will even come on. I don't think the 
CoCo itself is
>enough of a load to run safely, but add a couple of drives 
and no
>problem.
>
>I look forward to hearing how it goes, as I have a portable 
CoCo3 with
>internal floppy (hoping to add HD soon) that runs off a 12V 
lighter
>socket. :-)
>
>Cheers,
>Bob
>
>
>
>=====
>theother_bob at yahoo.com
>http://www.geocities.com/theother_bob
>
>"As a pessimist I'm either always right
> or pleasantly surprised" -unknown
>
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