Here is a link to a photo and description of the location of the relays.Just feel the largest relay while operating any of the switches you mentioned.If you feel the click, the relay and the switch and that fuse are O.K.
http://www.pelicanparts.com/techarticles/Boxster_Tech/22-FUEL-Fuel_Pump/22-FUEL-Fuel_Pump.htm
https://www.google.com/search?q=relays+Boxster+Pelican&tbm=isch&imgil=fxqWWLRi6BS0NM%253A%253BQrN6cHeGZFoqHM%253Bh ttp%25253A%25252F%25252Fwww.pelicanparts.com%25252 Ftecharticles%25252FBoxster_Tech%25252F22-FUEL-Fuel_Pump%25252F22-FUEL-Fuel_Pump.htm&source=iu&pf=m&fir=fxqWWLRi6BS0NM%253A%252CQrN6cHeGZFoqHM%252C_&usg=__GPd8xuhvALMA32ktu7p7fR64LoY%3D&biw=1536&bih=725&ved=0ahUKEwjnzcvTuavOAhUJ9IMKHd4EDLYQyjcIaA&ei=HySlV6fCI4nojwTeibCwCw#imgrc=fxqWWLRi6BS0NM%3A
But we're wasting time and bandwidth unless you have done a proper check of the appropriate fuses and wet carpet.Lots of vulnerable electrics under the seat and at the lowest part of the floor so blocked drains from the top will cause corrosion down there and endless electrical problems until you remedy that.
For more info ,look in the Bentley Manual. If you don't have one ,you'll be lost working on the Boxster.A great investment Your Owners manual shows relay locations(2)
https://www.amazon.co.uk/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=porsche+boxster+Bentley+manual
Also search the Boxster Forums. Common problem - see RennTech for a whole section devoted to your issue.
http://www.renntech.org/forums/topic/24146-top-is-not-moving/#comment-126193
Just search in Renntech986 section for for "Relays top windows" lots there and here on the 986 Forum.