> From: Frederick Silliman <[EMAIL PROTECTED]> > Date: Thu, 09 Jan 2003 16:23:12 -0500 > > i.bradley wrote: > > "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. - > > 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. > > > If you want to turn it back on, put a fan on the heatsink, blowing > down on to the heatsink. This should keep the processor and cache cool > enough not to pose any problem. A good source of fans: if you have any > old external HD cases that have bad PSs, cables or plugs, the fans in > them are either 5 or 12 vdc, which either is readily available in the > computer. I found one that the screw holes fit perfectly to the four > holes in the PowerLogix circular heatsink. According the PowerLogix > Profiler, the fan keeps things at a steady 32 deg C. > > -- Fred....
Fan or no fan I found that when running Mac OS 8/9 sooner or later with Spec Processing on Apps and or the machine will start crashing. Both my C500 and J700 had this issue and most upgrade companies recommend turning it off. OSX( which can be ran on a C500 with a G3 Zif upgrade...It's not an easy thing to get running but it is possible) lets you run with Spec processing on and you do get a bit of speed from it. It also can cause data corruption on your hard drive when crashing so be careful trying it. Will S -- 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 ---------------------------------------------------------------
