since this came up, I'll jump right in with my question, which is related:
last night I took my IIsi apart to some extent, in order to replace the PRAM battery. while i was in there, i took a good hard look around. yug. I don't know how long ago the last owner had this thing running, but were oily black dust bunnies clogging the floppy drive , both inside where the disc is suposed to sit, and on top of the casing. same story in the air vents. same story in the cooling fan grilles. so i set to work with my trusty antistatic wipes, grounded myself, drained off the static by clasping the power suppy for a minute, and then unsnapped the drive casing, wrapped a wipe around a flat butter knife blade, and gently slipped the wipe aroudn in the drive slot, bringing out junk until it was clean inside. then got the metal case off, then the plastic sleeve around it, and still grounded, wiped the gunk up off the works with a fresh towelette. reassembled the skin, the case, the ribbon cable, clicked it back down on the frame. couldn't slip anything thru the vents to clear out the junk caught in them, so i made a judgement call and decided that my standard technique for modifying plastics was in order: i heated up a long thin bread knife and cut down thru the air vents like a hot knife thru butter, widening them so i could see straight thru, and then pared away the bubbling with a sharp penknife to restore the plane of the lid. did the same on the side where the side vents are. I think I left enough integrity of the top to not break if i put a 12" monitor on top of it. now for the fan: it struck me that i have never heard this fan rev up when I turn this on.. I must need a new one. studied the mounting. it seems to look like the housing is a snap-in affair that plugs straight down onto the logic board for its power, when it reaches flush with the bottom. so I jiggled and leaned and squeezed and pressed--but couldn't get it to unsnap and come up and out. by the appearance, I think the black fan fin wheel must be held inside the housing by two 5 pointed screws on opposite corners. apparently you unsnap the housing, clear the anchor tabs, and lift out the whole thing, and then unscrew the wheel at those two screws and remove it to replace it with a new one. WHAT'S THE SECRET TO GETTING THAT HOUSING CAGE OUT OF ITS SPOT AT THE BACK OF THE IIsi? how is it supposed to work? and am I right about the removal steps and concept? what kind of a screwdriver takes out those 5 pointed screws? and when I go to the computer show on april 27th, what do i tell them I'm looking for? do i just take the whole little box to the show with me and show it to them? FWIW, I now know the inside of my IIsi, and now understand why the nubus cards have to be right angled in order to reach the expansion slot on the back. what is the white long strip that runs parallel to the nubus mount? (my inside case top says i have a revision B IIsi, assembled in Ireland, BTW) the breadboard says SIMM RAM printed beside it, but that ain't no 30 pin slot. it is as long as the nubus mount or longer. what is it for? i closed winkii twosie back up and turned her on, and everything's lovely. she has her little yellow duckies on a turquiose sea, i found that spiro gyra screen saver in after dark and set it, and whoever it was who told me to watch the difference after refreshing the PRAM batteries and turning on 32 bit addressing was sooooo right... before, with a dead PRAM, her system software was taking up , like, 90% of her memory after bootup. now, the reverse is true: it takes up maybe 1700k of her space, and leaves me 90% of the space open for more stuff. huzzah! and the new battery ought to last me, what--5 years?? or more?? so I gotta understand about this fan, guys. school me. janet http://community.webtv.net/mensabrains/BADCODE -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> The FAQ: <http://macfaq.org/> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
