Re: TwinAx Connection Problem only at Manual modes

[c sl <ai_fans@xxxxxxxxxxx>]

hi there,

any advise would of great help ..



--- On Tue, 4/11/08, c sl <ai_fans@xxxxxxxxxxx> wrote:

> From: c sl <ai_fans@xxxxxxxxxxx>
> Subject: TwinAx Connection Problem only at Manual modes
> To: midrange-l@xxxxxxxxxxxx
> Date: Tuesday, 4 November, 2008, 11:00 AM

> hi there,
>
> i come across this somewhat odd case with a 820 machine.
>
> It was successfully booted into D>M by my colleague and
> was scratched up to only OS level.  i then continued with
> installation of Licensed Programs.
>
>
> 1. In B>N mode, no problem with twinax connection &
> console display :-
> The server was initially in B>N mode,but it was found to
> have the issue of user ID locked during sign-on, after the
> exisitng twinax controller at the back of system unit
> connected to the 8-port twinax (MUX?) box. 
>
> 2. In B>M or D>M, everytime IPL into either of these
> 2 manual modes, always the console seemed unable to obtain
> signal from the existing twinax controller,with attention
> light at display panel.  Already set console to Address 0,
> Port 0.
>
> 3. After replacing a twinax controller at the back of
> system unit, console display back to normal when IPL into
> manual modes.  
>
>
> my concerns are :-
>
> - Why a 'intermittent-faulty' (is this the right
> word to say?) twinax controller would caused attention light
> & caused no signal to be transmitted to console ? 
>
> - How are the detailed IPL process at Manual mode (Attended
> IPL) ?  
>
>
> hope u could shed some lights ..  thx a lot..