1-10 Dell Precision 410 Systems Service Manua l

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The enhanced dual-interface EIDE subsystem supports two EIDE interfaces
(primary and secondary), each of which can support up to two EIDE devices.
The EIDE controller resides on the high-speed PCI bus.
T he primary EIDE interface (IDE1) supports up to two high-per formanc e EIDE
devices. The computer’s boot drive should be connected to the primar y EIDE
interface.
The secondary EIDE interface (IDE2) also supports up to two high-
performance EIDE devices, typical ly EIDE tape dri ves or CD-ROM drives.
NOTE: The externally accessible drive bay s at the front of the computer are
normally used for diske tte drives, CD-ROM drives, and/or tape drives.
Hard-disk drives should be installed in the internal hard-disk drive positions
described in “H a r d-D i s k D rive O p t i ons ” fo u n d e a r l i e r in t h i s cha pte r. Fo r d e t aile d
inf ormati on about the data storage subs yste m, see Chapte r 1 0 , “Installing Driv es,”
in the
User’s Guide
.

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SCSI drives are supported by using two integrated SCSI channels:
T he primary (Adaptec AIC-7890) channel provides Ultr a2/Wide LVD
(80-MB/sec) support fo r high-performance SCSI har d-disk drives and an
optional RAID subsystem.
NOTE: To achieve 80-MB/sec support, all of the installed SCSI devices
must support the Ultra2 specification’s 80-MB/sec transfer rate. If they do
not, the transfer rate will default to the speed of the slowest device in the
SCSI chain.
T he secondary (Adaptec AIC-7880) channel provides internal Ultra/Narrow
and external Ultra/Wide (40-MB/sec) support for SCSI CD-ROM and tape
drives, opt ical drives , scanners, and so forth.

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T he syst em board has an onboard 16-bit Plug and Play Crystal 3D CS4237B
audio control ler chip and connec tor s on the ba ck panel for c onnecting the com-
puter to e xternal audi o devices such as speak ers/headphones an d microphone.
T he controller support s all sound functions contained on the Sound Bla ster P ro
expansion card from Creative Laboratories, Inc.
Chapter 6, “Using the Integrated Audio Controller,” in the
User’s Guide
pro-
vides instructions for connecting the computer to external audio devices and
configuring the integrated audio controller to a void resource confli cts.