Antec900 black gaming case (September 2010 purchase)

[RickMorgan]

I have the antec 900 case and wish to extract the large top fan for cleaning.
A google shows that it's fixed from the top with some barely discernable screws.
Unfortunately I don't appear to have these screws fitted on mine and must presume I have an earlier model case. (Sept 2010).
Any ideas please guys?

 

[vanthus]

Have a look at the case manual,if you still have it.

 

[RickMorgan]

Have a look at the case manual,if you still have it.

I still have the case manual, nothing in it re. fitting the big boy top fan other than to state that it's already fitted.
It does show a pic without the complete top section showing but gives no indication on how to remove it.
I am loath to start unscrewing here and there on the off chance something will eventually happen.

 

[RickMorgan]

problem now passed to Antec direct.