For longer blades, I was talking about the Nidec. It's a 38mm deep fan at least according to the one datasheet I saw, but 5" (127mm) so the blades would be a little longer. The exact model wasn't in there, so it might be that the A34538 is a deeper fan. Do you have a DS for it?
Edit: That might actually make sense.
http://www.nidecpg.com/fanpdfs/c2003_4546.pdfAll the fans in there are AXX3XX models. The AXX5XX could be 50mm vs 38mm versions.
Sorry, do not have the datasheet.
The exact model I am running is AX34538-90 as read from the sticker (and I believe that is the same in the link I gave), and it is definitely NOT a 38mm form-factor .... more like a 50mm one.
I am popping out for a while to pick my kids from school but will look again when I get back and update you.
Just looked at the directory of the datasheets and it seems there is no datasheet for the TA500DC .... probably these were made on order for Compaq only?! The only ones I've ever seen are all branded with the Compaq tag ..... so that may be the case.
(from your link above).
But hey, you can pick this fan up for ~ $5 + shipping and the resistor for the mod is ~ $1 ...... who needs a datasheet?