>1. Why is the ATA card a shorter data path than the IDE bus on themobo? This is not intuitive (but still may be true! :-) ) Are you saying that the performance will be noticeably quicker through the ATA card than directly on the mobo? If the difference will be very noticeable, I'll probably keep the ATA card where it is. If it's not that noticeable, if at all, I want to move it to the Supermac because it currently has no ATA/IDE capability.
The G3 has to access data between to busses - from its IDE controller and from the ATA card recognized as a SCSI device on a PCI slot, a kind of round about way data is tossed around.. Also the onboard controller represents the IDE standard of the day (when the G3MT was designed) being ATA-33 vs the ATA-100 card capable of faster transfer rates. You remove a bottleneck by using one kind of controller for both drives.
I hardly think that makes a difference. Regardless of whether or not he's got two controllers, he's got two disks - the computer still has to issue _two_ requests for data. Also, the seek time on the disk is probably substantially greater than the time it takes for the PCI bridge chip to figure out which controller to send the request to. Finally, all this is moot. Even with two controllers (UltraSCSI and UATA-133), his system w/ PCI cards is SIGNIFICANTLY faster than the on-board IDE (which, by the way, isn't ATA-33 - that's in the B&W, but not the beige G3). The beige G3's on-board IDE is bog-standard EIDE at a pokey 16.7MB/s - virtually anything is faster than that (except the IDE in Performas, maybe).
2. I was afraid this might be the case. No big deal. . .just the lazy streak in me coming out. 3. You mean, without Expost Facto, it will only boot with all extensions off? Period?
What runs well on a G3 may hang with a 604e. To be safe boot with extensions off.
9.2.2 requires a G3+ unless patched by OS 9 Helper. It won't boot the S900, even with extensions off I'd wager. It'll probably put up a dialog saying this OS won't work on this Mac, please update - or something to that effect.
OS 9 Helper does some tweaking to the System suitcase's boot code to get it to run on non-G3+ PowerPCs.
Will OS 9 Helper patch an existing installation of 9.2.2?
Peace, Drew
--
Author of ClassicStumbler email: <[EMAIL PROTECTED]> web: <http://www.alksoft.com/>
Visit the PowerBook 5300 FAQ! <http://www.alksoft.com/5300_FAQ/>
-- 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
