Prevents dangerous explosions when the Cap breaks down, the indents weakens
the housing to allow for pressure to be released thus preventing a build up
and explosion. Very good idea. You need to replace and figure out why
yours failed.

DRLee

"Meee" wrote in message
...
I was wondering why vertical mounting electrolytics have like an
indented cross on them. The reason I ask is because there's 4 largeish
one around my CPU on the motherboard and they have all split open,
along the indentations.