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ATA 133 on ATA 66 bus?
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Fresh-Faced Recruit
Join Date: Oct 2005
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I know similar questions have been asked, but I can't find a clear answer.
Can I put an ATA 133 (30GB) HD on my Quicksilver's ATA 66 bus?
I'm not looking for tons of performance here, just more storage.
Are the connectors different?
Thanks
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Addicted to MacNN
Join Date: Jan 2001
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Should work. The SATA (serial) drives won't work without a PCI adaptor card. I think the 66, 100 & 133 numbers are max.speeds, depending on the system bus.
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When a true genius appears in the world you may know him by this sign, that the dunces are all in confederacy against him. -- Jonathan Swift.
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Admin Emeritus  Join Date: Oct 1999
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It will work. ATA devices (with a VERY few exceptions) are forwards- and backwards-compatible. (Even SATA is compatible with a cheap adapter.)
ATA/33/66/100/133 are indeed just the maximum supported speed. They use the same connectors. SATA uses different connectors, but adapters exist and work fine.
tooki
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Posting Junkie
Join Date: Oct 2005
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Depending on which Quicksilver revision you have, you may only be able to use 128GB (137 billion bytes) of the drive if the drive is larger than 128GB. With ATA-66 I'd guess your Mac does not support LBA48. See the "PowerMac Storage FAQ" at the top of this forum for details.
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Admin Emeritus Join Date: Oct 1999
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Yup. But the OP said it's just a 30GB drive.
tooki
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Forum Regular
Join Date: Sep 2001
Location: Japan
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Originally Posted by chris v
Should work. The SATA (serial) drives won't work without a PCI adaptor card. I think the 66, 100 & 133 numbers are max.speeds, depending on the system bus.
 Yes, that's right, and it will work. But.... The data on the drive may show up if you just connect the drive to the internal IDE cable, but depending on the interface on which the drive was initialized, you may run into problems. Ideally, the drive should be erased after connecting it using OS X's disk utility to ensure that the drive is setup for the bus speed, the bus it is connected to after the move. Far less risk of trouble that way. 
However, with the low prices of hard drives now, 120 GB for less than a 100 bucks, why not go for a reasonably large drive?
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Admin Emeritus Join Date: Oct 1999
Location: Zurich, Switzerland
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The drive doesn't need to be "set up" for the bus speed, that's done automatically by the hardware, the software knows nothing about it.
Reformatting should not be necessary at all, so long as the drive is formatted as HFS+. If for some reason it's HFS standard, then it reformatting as HFS+ would be beneficial.
Also, if the old drive was formatted on certain models of ATA PCI card (the kind that pretends to be a SCSI card), then it might need reformatting, but this is very unlikely.
tooki
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