on 1/9/03 2:27 PM, Jeff Walther at [EMAIL PROTECTED] wrote: > At 14:22 -0600 01/09/2003, Robyn J. Lyons wrote: > >> While it is okay in a native G3/G4 machine, you DO NOT want to turn >> speculative access on if you are using a g3 upgrade in a 601/3/4 >> machine. I forget what the reason is exactly but it has something to do >> with the firmware not knowing how to handle spec acc. correctly and >> causing errors and possibly crashing. > > It can also lead to data corruption on your hard drives. > >> Of an interesting note, OSX does >> know how to handle spec acc correctly on our machines and should be >> turned on if you are using OSX. > > Also, the Kansas machines (8600 Enhanced, 9600 Enhanced) have ROMs > which handle speculative processing properly. And the ROMs from > those machines work fine in the S900 and J700. However, getting them > into the J700 and S900 requires some soldering as there's no ROM slot > in those machines. They wouldn't work (I assume) in the C series > machines, though. > > Jeff Walther
I have been following this thread with interest. According to Gauge PRO, on my S900 (using NewerTech G4/400 daughtercard) speculative accesses are "Enabled (I/O compatible)". My machine operates fine with it on. I don't even see where I could switch this off in the Maxpower control panel. Was this perhaps compensated for in the Maxpower hardware? Would this also explain why NewerTech upgrades are picky about the type of RAM used? -- Gregg -- 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/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
