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● Notes on installation
• If you want to install file bay options to your PC, set up Windows and then turn off the PC before
doing so.
• An internal hard disk can be set to Ultra DMA/100. With the DMA initialization, channel 0 is enabled
and channel 1 is disabled for a Windows NT model, while the standard hard disk is set to Ultra
DMA mode and the CD-ROM drive is set to PIO mode for a Windows Me/98/2000 model.
Refer to the manual for your hard disk to check whether it supports Ultra DMA.
When installing a hard disk unit that does not support Ultra DMA, be sure to set DMA to OFF or
disable it. If it is used with DMA set to ON or enabled, the unit may not work properly and may
destroy data.
• To operate an internal hard disk that supports Ultra DMA/100 under this standard, attach it to
the primary IDE. If attached to the secondary IDE, it operates under Ultra DMA/33, not under
Ultra DMA/100.
• Only one ATAPI-compliant magneto-optical disk drive can be installed on the PC. When installing
a drive, connect it to the secondary IDE.
● Master and slave
On standard models
This PC can accommodate up to four IDE-compliant devices. Install the first and second devices
to the master and slave of the primary IDE. Install the remaining two (third and fourth) devices to
the master and slave of the secondary IDE.
This master and slave setting depends on the connection between the internal IDE devices and
flat cables (this configuration is referred to as Cable-Select). Connecting the master connector of
a flat cable to an IDE device makes the device configured as a master, while connecting the slave
connector to a IDE device makes the device configured as a slave.
To enable Cable-Select, set the jumper switch of the internal IDE device to Cable-Select.
When connecting an internal IDE device that does not support Cable-Select to Master, configure
the device as a master. When connecting it to Slave, configure it as a slave.
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