linux-kernel - Re: Problem of using a PCI device in a Hot Plug PCI slot

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Message-ID: <BAY103-F365FA452C152C9CF32478385250@phx.gbl>
Date:	Tue, 26 Sep 2006 16:21:48 -0400
From:	"Igor Sharovar" <ig_sh@...mail.com>
To:	hancockr@...w.ca
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Problem of using a PCI device in a Hot Plug PCI slot

Robert,
I checked these pins. They are grounded.
I wonder if a Hot Plug slot doesn't have enough power to feed the card. I 
measured voltages (12, 3.3 and 5). I saw a spark during power on, but this 
spark never goes to a normal voltage level. For example, in the +12v pin I 
saw a spark +3.5 volt.

Igor


>From: Robert Hancock <hancockr@...w.ca>
>To: Igor Sharovar <ig_sh@...mail.com>
>CC: linux-kernel@...r.kernel.org
>Subject: Re: Problem of using a PCI device in a Hot Plug PCI slot
>Date: Mon, 25 Sep 2006 18:16:32 -0600
>
>Igor Sharovar wrote:
>>Hello,
>>
>>A PCI card, which developed in my company, isn't powered in a Hot Plug PCI 
>>slot(  Intel server ).
>>During boot-up, a populated slot powers up, then immediately powers off.
>>The card works fine in non Hot Plug slots. The Hot Plug PCI specification 
>>says that a regular PCI card should at least be powered in a Hot Plug PCI 
>>slot.
>>What are requirements for running a PCI card in a Hot Plug slot.
>>I would appreciate any help.
>
>Maybe the card isn't grounding the right PRSNT pins to allow the machine to 
>detect the presence of the card?
>
>--
>Robert Hancock      Saskatoon, SK, Canada
>To email, remove "nospam" from hancockr@...pamshaw.ca
>Home Page: http://www.roberthancock.com/
>

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