Intel MDS Series II IOC question

[Dave Mabry]

Thanks, George, and Randy.  Good suggestions.  In this case the only 
scanbe sockets are the eight ram chips.  I'll check them but I would bet 
the RAM test in the diagnostics is the first beep.  All the rest of the 
sockets are already the Augat type.

Looks like I'm going to start disassembling the firmware to see what 
that might reveal.

George L. Rachor Jr. wrote:

> Greetings Dave,
>
>
> Possibly helpful hints from a friend not on this list:
> ------------
> Subject: Re: Intel MDS Series II IOC question (fwd)
>
> Hi George,
>
> My first thought is SCANBE.
> My second thought is SCANBE.
> My third thought is... can you guess?
> Replacing the SCANBE sockets with AUGAT barrel type on the older IOC's
> has always solved my 5 beep test problems.  Making sure all socketed 
> components
> are properly seated in reliable sockets.  The manuals, flow charts, 
> etc...
> all say to replace the IOC if the 5 beeps test fails.  The manual called:
> Customer Engineer Diagnostic System Test Operating Instructions For 
> Series II Systems
> (121619-001)  may break down the 5 beep test, but I do not have a copy.
>
> Tips for replacing the SCANBE sockets.
> 1. Pull the plastic housing of the SCANBE socket off the board.
> 2. Remove the mylar sheet from between the pins.
> 3. On the component side grab one of the pins with needle nose pliers
>     while heating same pin on the solder side, pull to remove.
>      Repeat for all pins.
> 4. Use solder wick to remove solder from holes and clean up.
> 5. Clean area with flux-off if needed.
> 6. Install AUGAT machine barrel socket.
> 7. Clean area with flux-off.
>
> Randy
>
>
> =========================================================
> George L. Rachor Jr.        george at rachors.com
> Hillsboro, Oregon               http://rachors.com
> United States of America        Amateur Radio : KD7DCX
>