Hello, all. Now that the rush has passed, I can turn again to my trials with my B&W.
[Marty Said:] 1) I find it odd that the motheboard has one connector maked "IDE" and the other one marked "Ultra ATA". Is this implying that the first is ATA/66 and the other is ATA/100? [Dan said:] > The on-board IDE is Ultra ATA/33. [Marty continues:] Hm. System Profiler notes the first channel as "ATA" and the second channel as "ATA-3" which I understand equates to EIDE. My reference <pcguide.com> also notes that ATA goes only to 33 MB/sec and can be used with 40-wire ribbon cables, whereas all higher speeds require the better noise rejection provided by 80-wire cables. And -both- of the drive cables on the Yosemite are 80-pin, maybe chosen by apple "just because". (*sigh*) The more I read about this, the more clear it becomes that the ATA world is a swamp of ambiguous protocol statements. Does anyone know of a utility that will disclose the I/O modes being used between the mobo ATA subsystem and a given drive? [Dan noted:] > Apple's TIL and the service manual have details. [Marty:] OK. <docs.info.apple.com> article 58226 is an overview of the specs, but is mute to ATA bus details. Article 30510 leads to article 24342, neither shedding light. Can anybody point me to a specific source for a PDF service manual, or other TIL articles that go into details? Thanks in advance for any pointers. - Marty -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:g-list@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
