[ltp] What's this screw for?

[Ignacio Fernández Galván]

On Sat, 19 Feb 2005 06:13:34 -0600, wes schreiner <wes@infosink.com> wrote:

> I bet you are looking at a 2.5 mm Allen head screw, what IBM calls the  
> "security screw".  Its purpose is to replace the slotted screw that  
> retains the cover of the hard drive.  The idea is to make it more  
> difficult to remove the hard drive.

Oh, yes, that could be. I didn't find anything in the supplied  
documentation and, being there already another screw, I didn't pay it much  
attention.

> I don't know what screw hole you have found, perhaps it is for something  
> else?  It's not the Security keyhole, that's on the left side.  Does it  
> perhaps lock the Ultrabay device in place?

well, in that same diagram, at the same side of the laptop but much closer  
to the battery (close to the rubber pad too), there is a round shape, and  
the screw seems to fit nicely there, but doesn't lock the ultrabay as far  
as I can tell. Quickly browsing the pdf I didn't find any description for  
this hole, so it might be a red herring, or maybe I'd need a longer screw.  
Anyway, it looks like this screw is the "security" one for the HD.