>Hey all, > >I recently read that Apple chokes its USB speed to under 700k/s. That comes >from Roxio's website indicating why you can't burn a CD using a USB drive at >greater than 2x. > >I was wondering if USB 2 is better. I have a 7300/200, and I installed a USB >card in it. Would upgrading to a USB 2 card be beneficial? I don't want to >get anything that would be a waste, since my bus speed is only 33 or 66 I >forget which. Also, are USB 1 peripherals compatible on a USB 2 card? > >Does anyone know what the possible throughput is between mobo and peripheral? >I am operating under the assumption that installing firewire would just be a >waste of time, as my mobo couldn't possibly push data fast enough.
The problem is that Apple only supports USB 2 in OS X. They never released a USB driver set supporting USB 2 in classic OS (8.6 or 9.x). Finally, Apple pushes Firewire for high throughput devices such as CD-R's, DVD's and DV cameras. The short answer is that Firewrire is definitely an option for your computer. You will want to have either OS 8.6 or 9.1 up and running before you add it. Also, look for a PCI card marketed as for Macintosh computers. I have a firewire CD-R and write at 32x all the time without a coaster (the drive does support under-run protection, but I don't think it is being used.) As to your computer, yes the PCI bus runs at 33 Mhz, but it is 32 bits wide so the bandwidth is 132 MBytes/Second. FWIW, you system bus is probably 50 Mhz at 32 bits for a 200 MByte/Second bandwidth. Firewire is 400 Mbits/Second (50 MBytes) bandwidth, but has additional overhead so that total bandwidth is never available. The long answer is that a Firewire PCI card is limited by the firewire bus not the internal buses of your computer. -- -- Mr. PopMan - [EMAIL PROTECTED] - "Does anybody want to play a game of pinball?" Some people are born into wonderful families. Others have to find or create them. Being a member of a family is a priceless membership that we pay nothing for but love. Jim Stovall-The Ultimate Gift -- 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
