Philip Black wrote: >on 12/1/02 12:34 AM, Tim at [EMAIL PROTECTED] wrote: > > >>>This worked. System booted. Running 432 MHz w/216 cache @ 54 MHz bus. >>> >>>Tried 56 MHz but system would not boot. Put back to 55 and restarted. >>> >>> > > > >>>How high can the bus on a 7500 run ? >>> >>> >>I wouldn't push it much more than 55. From experience, that's about the max >>safe. >> >> >> >When I used a XLR8 ZIF card in my 7500, I couldn't get the bus to go >reliably past about 51 or 52 MHz; much beyond that and I'd get occasional >lockups and crashes. Eventually, for the sake of security, I left it at 50 >MHz which is what it ran before the G3 upgrade... > > > > 53Mhz was the highest reliable bus speed I obtained with my Kansas 9600, xlr8 ZIF carrier g4/450. Since it ran hot enough with the crappy heatsink fan supplied by xlr8 I switched it back to 50MHz. I've since replaced the heatsink fan (it died right after xlr8) but figure a few MHz isn't worth the extra heat. (With all six PCI slots filled it gets hot enough inside the case as-is.)
I remember reading somewhere at xlr8yourmac.com about someone pushing a 9600 to 60MHz. Must have been the best logic board of the batch. -+-+-+- RPM -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.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/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
