VAX-11/750 EMC Memory Board LEDs

[Ian King]

> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-
> bounces at classiccmp.org] On Behalf Of David Comley
> Sent: Wednesday, July 08, 2009 12:50 PM
> To: cctalk at classiccmp.org
> Subject: VAX-11/750 EMC Memory Board LEDs
> 
> 
> Can anyone tell me what the yellow LED signifies on the EMC 1MB memory
> boards that can be used in the 11/750? The EMC part number of the
> boards is 240-011-900.
> 
> The green LED appears to be for power but I'm curious about the exact
> meaning of the yellow LEDs since they start out bright, on powerup, and
> then dim quite dramatically after a few seconds, presumably after or
> during initialization of the boards.
> 
> Thanks,
> -Dave

We have some of those in our 11/785s but I was never able to find any documentation.  I think your interpretation is likely correct.  When I was having problems getting one machine to boot, those LEDs stayed on.  -- Ian