At 18:49 -0400 2005/08/14, Alan Roberts wrote: >The PTP has removable L2 cache, but the L2 on the 9500/9600 can also be >physically disabled by clipping a resistor if it is necessary to go that far.
I'd be very hesitant to physically disable the 9600 cache in a way I couldn't easily reverse. The reason: I got a 9600 (pre-Mach V) with a MaxPowr G3/500/1M card that was working fine. I tried using the card in my PTP that had been working with a Sonnet G3/450/1M card until I accidentally fried the latter. (Explanation below!) I couldn't get it to work - it kept freezing, usually just after "Starting Up" appeared, whether with or without any or all extensions disabled. Since it would still work with the original 604e/250 card, it wasn't a motherboard problem. Finally, I got it to work by putting the L2 cache back in! My guess as to why the PTP worked with the Sonnet card without the cache DIMM, but the MaxPowr card required it, has to do with the 50 MHz bus speed that the latter operates at, while the Sonnet ran the bus at 45 MHz! At 07:04 -0400 2005/08/14, The Grand Wazoo wrote: >The 9600 looks better but I suspect that the PTP cools >better. The PTP has a separate internal fan that blows >directly onto the processor card, which I think is >probably a good idea unless your upgrade daughter card >comes with its own fan. I managed to fry two Sonnet CPU cards in my PTP by the simple "expedient" (:-<) of forgetting to reconnect the internal fan after working inside the case! Fortunately, the first time it was still under warranty and the second time I had the MaxPowr card available. The latter card, BTW, has a much larger heat sink, so it might not burn up so easily. I'm not going to experiment, though! Anyway, my preference is for the PTP over the 9600 because of it has more space internally for drives and it's much narrower. But if I ever need more RAM slots in one of these old machines, I'd switch to the 9600. - Aaron -- 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/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
