Re: [tlug] Dell Dimension-C Autopsy - Chemical Spill!

["Lyle (Hiroshi) Saxon" <ronfaxon@example.com>]

Jim wrote:

> > [LHS] one of them [bad cap] leaked a very dark 
> > brown goo that flowed about 8cm across the main circuit board - that's 
> > probably the detail that stopped the board from functioning.
> >    
> The presence of the goo on the board is likely _not_ what caused 
> the board to fail. The _absence_ of the goo from the inside of the 
> cap is what caused the board to fail. _Most_ of the bad caps I've 
> seen did _not_ leak. 
>  
So *most* of yours *didn't* leak.  Okay, that means that *some* of them 
*did*.  How many?  Specifics please!!!  Related to that - after 
explaining how I hadn't been meaning to suggest that the brown goo 
caused the death of the computer, but rather only indicated which 
capacitor it was coming from, I had a closer look at the board and two 
things occurred to me.

1) (Actually, this thought occurred to me *before* I took a second 
look.) - A *liquid chemical spill* on an *electronic circuit boast* is a 
*very bad* thing!

2) Looking at the path the liquid chemical spill took, it flowed over 
the legs of one of the boards IC chips!  Ouch!  Liquid chemicals flowing 
over IC chip legs... no, I don't think I want to waste my time trying to 
fix that board!

Lyle