Oh I'm getting close! ;-) The link to the Mot documentation from your page, Mad Dog, doesn't work - it just sends me back to e-www.motorola.com's homepage... Besides, I think that documentation is for the 603r (is that right?)... Anyway, I found this : <http://e-www.motorola.com/brdata/PDFDB/docs/MPC603EEC.pdf>
Page 14 of that document shows a diagram w/ the pinout of the 603e. It goes something like this: 213: PLL_CFG0 212: SYSCLCK 211: PLL_CFG1 210: PLL_CFG2 209: AVDD (this is connected to pin 4 of the oscillator - Vdd - and is what I previously called pin 30 on the CPU) 208: PLL_CFG3 Page 24 (or section 1.8.1) outlines how to set the bus multiplier. I guess now all that remains is to trace out the circuit to the proper resistors, then "just do it!" Oh yeah, the chart there seems to imply that PLL_CFG[0-2] set the bus multiplier... PLL_CFG3 sets the core to VCO multiplier. Would that be noticeable when you clock chip? -- If not, that might explain why "no effect" is observed when certain resistors were moved about in the 1400 chipping... Hmmm... Thanks to Dave Ip, I now have a handful of 5300c mobo pics for the appropriate area. I'll post them to my website a little later tonight (I'll let you know when it's done), but right now I'm going to go fetch some dinner! Peace out, Drew P.S. - R128 and R129 are on the bottom of the mobo, almost literally under the oscillator. R127 is pretty much on top of R128. P.P.S - Oh yeah, from preliminary inspection, it looks like R47 is connected to PLL_CFG2 -- Having graduated (with a physics BS :-P), I will be using the email address <[EMAIL PROTECTED]> Please update your address book. <http://homepage.mac.com/alk/> "Anyone can fly, all you have to do is throw yourself at the ground and miss." -Douglas Adams, Hitchhikers Guide to the Galaxy -- PowerBooks 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> PowerBooks list info: <http://lowendmac.com/lists/powerbooks.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/powerbooks%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
