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iBook (dual USB) mod help wanted - adding 2nd HD
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Mac Enthusiast
Join Date: May 2001
Location: NY
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I have had my iBook for 6 months, and only used the CD drive a couple of times - I'd like to swap it out and put a 2nd HD in there. Are the IDE and power connectors the same for the HD and CD drive? Is there enough room? I'm guessing the CD drive is much bigger than a 9.5mm drive, so that won't be a problem.
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Mac Enthusiast
Join Date: Jul 2001
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Originally posted by jtc:
<STRONG>I have had my iBook for 6 months, and only used the CD drive a couple of times - I'd like to swap it out and put a 2nd HD in there. Are the IDE and power connectors the same for the HD and CD drive? Is there enough room? I'm guessing the CD drive is much bigger than a 9.5mm drive, so that won't be a problem.</STRONG>
I think that it would probably work, assuming the connectors are pin-compatible. Check the apple developer page for the hardware specs on the machine and on both drives.
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Mac Enthusiast
Join Date: May 2001
Location: NY
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Unfortunately I can't find any info on the CD connectors. It says this about the HD connectors:
The internal hard disk has a 48-pin connector that carries both the ATA signals and the power for the drive. The connector has the dimensions of a 50-pin connector, but with one row of pins removed, as shown in Figure 3-4. The remaining pins are in two groups: pins 1–44, which carry the signals and power, and pins 45–48, which are reserved. Pin 20 has been removed, and pin 1 is located nearest the gap, rather than at the end of the connector
The CD page has this info
One configuration of the 12.1-inch model has an internal CD-ROM drive. The drive has a tray for loading the disc. The drive supports 24X data transfer rates using constant angular velocity (CAV) and a data buffer.
The CD-ROM drive supports the worldwide standards and specifications for CD-ROM and CD-digital audio discs described in the Sony/Philips Yellow Book and Red Book. The drive can read CD-ROM, CD-ROM XA, CD-I, PhotoCD, and Video CD discs as well as play standard audio discs.
Digital audio signals from the DVD-ROM can be played through the sound outputs under the control of the Sound Manager.
Does anyone know whether they are both masters on different channels, or are they master/slave? I may not bother if they are on the same channel. I was hoping for a bit of a performance bump by putting the swap partition and some apps on the second drive.
[ 05-08-2002: Message edited by: jtc ]
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Mac Elite
Join Date: Dec 2000
Location: In support of our troops
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Originally posted by jtc:
<STRONG>Unfortunately I can't find any info on the CD connectors. It says this about the HD connectors:
Does anyone know whether they are both masters on different channels, or are they master/slave? I may not bother if they are on the same channel. I was hoping for a bit of a performance bump by putting the swap partition and some apps on the second drive.
[ 05-08-2002: Message edited by: jtc ]</STRONG>
To me (using Apple system profiler) it looks like they are on the same bus. Since they both share the same cable I don't believe they could be seperate busses could they? Also their connectors are completely different. The CD uses the standerd laptop CD connector. The HD uses the HD one 
I do believe it's possible to do, but worth it? No
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