Thanks, PeterH, Eugene G and David Ensteness for clear answers. I am getting a better understanding of this one now! So there is a capacity in the board up to a limit, in the 7300, up to 50 MHz. In my 7300, I have an XLR-8 and it runs at 333. In my 7600 I have a PowerLogic G3/4 chip and it runs higher, about 360. Both stable as rocks. I know the XLR-8 chip is jumpered optimum for speed and stability. And I am confident of the PowerLogic being right too in the 7600, there's a history here I will leave out. I had wondered whether the PowerLogic (which uses 9x - multiplying up to 450 MHz) would better suit the 7300 and say run at 400 MHz. But I'll not do this if the 7600 board is essentially the 7300 board minus the AV circuitry.
> No that is the difference, the bus speed is determined by the processor clock, > so there is a moderate change in bus speed but that happens with the change in > processor clock and is not an inherent change in the board. > > On Sep 10, 2003, at 7:54 PM, David Elmo wrote: > >> I know this has been discussed before but I forget now ... here are two macs >> one sometimes sees for sale: a 7300/180, 7300/200. Now the 180 and 200 refer >> to the processor. OK. But apart from this, is there any other difference? In >> motherboard? In any bus speeds (apart from that which is integral to the >> processor)? Anyone please... >> -- 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
