I got adventurous and popped open my S900. I guess that it is older than I originally thought. I looked inside and lo and behold, there (factory installed) were 2 pins on a jumper block nicely labled J38.
What position is the jumper supposed to be in to enable the cache. I assume that having the pins shorted would disable it since mine has no jumper on it. 2nd question, just out of curiosity, does anyone know about how many of these machines were made with the pins already installed? -Robyn On Wednesday, July 10, 2002, at 05:45 PM, Jeff Walther wrote: > > The J38 jumper position is present on all of the S900/J700 > motherboards. However, the pins for the J38 position are only > installed on a very few machines. So, on a few machines there is a > pair of pins sticking up on which it is a simple matter to install a > .1" pitch jumper (the larger of the two common jumper sizes). On > other machines, there are simply two solder filled holes where the > jumper pins would go. > > On the latter machines, using the J38 position requires either > soldering in a wire or other conductor across the two holes, or > installing one's own pins in the wholes so that a jumper may be used. > > The machines without the pins still have a silk screened J38 label > and a tiny white rectangle drawn around the two pins. Don't be > confused by the nearby position for the Delay Line (labeled DL) > though. The Delay Line position is closer to the CPU socket. > > Jeff Walther -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; 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/supermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
