Question: ATX Powersupply For AlphaPC164 Motherboard
Robert Alan Byer
personally as workstations and file servers running OpenVMS.
My problem is that one of the ATX power supplies in one of
AlphaPC164's died on me. I read the manual that came with
the motherboard and it says to use an ATX power supply. I bought
the cases with power supplies quite some time back and they were
designed to work with the AlphaPC164 motherboard.
I go out and get a new modern ATX power supply, but it doesn't work, it
won't power up and I ended up taking a power supply out of one of my
OTHER working AlphaPC164 systems so I could at least get
my e-mail server going.
My question is, is it even possible to use a modern ATX
power supply with this motherboard and if so, how? I would
like to put in something more than a 350W power supply in it.
Thanks in advance.
jor...@ccs4vms.com
Robert,
most current ATX cases use soft power controls instead of the old
hard switches. There's a pin on the large connector that needs to be
grounded to power the supply up; I don't remember which one. Even if
the supply has a built in switch, the soft power has to be grounded for
it to turn on.
Rich
Hans Bachner
> Robert Alan Byer wrote:
<snip>
>> My problem is that one of the ATX power supplies in one of
>> AlphaPC164's died on me. I read the manual that came with
>> the motherboard and it says to use an ATX power supply. I bought
>> the cases with power supplies quite some time back and they were
>> designed to work with the AlphaPC164 motherboard.
>>
>> I go out and get a new modern ATX power supply, but it doesn't work,
<snip>
>
> Robert,
> most current ATX cases use soft power controls instead of the old
> hard switches. There's a pin on the large connector that needs to be
> grounded to power the supply up; I don't remember which one. Even if
> the supply has a built in switch, the soft power has to be grounded for
> it to turn on.
You can find more details on http://www.omnistep.com/~advantag/pwrsup.htm
Instead of soldering the bridge onto the mainboard, I grounded pin 14
(green wire) of the power supply with a short piece of wire in the
connector that plugs into the mainboard (e.g. to adjacent pin 15, black
wire).
Hope this helps,
Hans.
David Turner, Island Computers US Corp
If you call ZIPPY (www.zippyusa.com) they could even build one for you
Our price for the PS is $199
Regards
David
--
David B Turner
Island Computers US Corp
2700 Gregory St, Suite 180
Savannah GA 31404
Tel: 912 447 6622 X201
Cell: 912 447 6622 X252
Fax: 912 201 0402
Email: dbtu...@icusc.com
Web: http://www.islandco.com
=====================================
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"Robert Alan Byer" <by...@mail.ourservers.net> wrote in message
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David Turner, Island Computers
Price is $150
--
David B Turner
=============================================
Island Computers US Corp
PO Box 86
Tybee GA 31328
Toll Free: 1-877 636 4332 x201, Mobile x251
Email: dtu...@islandco.com
International & Local: (001)- 404-806-7749
Fax: 912 786 8505
Web: www.islandco.com
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"Robert Alan Byer" <by...@mail.ourservers.net> wrote in message
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David Turner, Island Computers
A little late...
Had my dates out of order !
--
David B Turner
=============================================
Island Computers US Corp
PO Box 86
Tybee GA 31328
Toll Free: 1-877 636 4332 x201, Mobile x251
Email: dtu...@islandco.com
International & Local: (001)- 404-806-7749
Fax: 912 786 8505
Web: www.islandco.com
=============================================
"David Turner, Island Computers" <dtu...@islandco.com> wrote in message
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