"Robyn J. Lyons" wrote:
> > Speculative access allows the processor to guess what the next > instruction is going to be and will prefetch it to reduce wait times. > If it guesses right, you get a nice speed boost, if it guesses wrong, > you break even. Why you should turn it off or on is noted below. > > > 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. 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. > > > This would be normal, if you overclock your motherboard, you should see > an increase in the MB/sec rate. Also keep in mind that the G3 uses a > faster kind of memory than the c500 does. Even if you did manage to get > the C500 to 66mhz (nie impossible), your MB/sec still wouldn't match > what the G3 could do. Still, 31MB/sec is pretty good for one of these > machines. > > -Robyn > > -- Thanks for the quick replies guys. I found the Powerlogix control panel installer and installed it. I've enabled the speculative access and restarted and the machine seems snappier, reading 33.2 MB/sec now, but running hotter. Eeek, after reading Robyn's reply above I think I'll turn it off again for safety's sake and check the MB/sec speed again. Having to sign off for the moment regards, Ian B (UK) C500, G3 P-Jolt320, 112mbRAM, OS8.6, 2GbHD, 2 x 9GbExtHD, Zip250SCSI, Astra610S, StyleWriter2500, PACE56KModem - - - - - - - - - - - - - -- 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 ---------------------------------------------------------------
