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ASUS High-Speed CD-ROM Drive User’s Manual
V.TROUBLESHOOTING
PROBLEM
Data transfer rate performance seems slower than expected.
CAUSE
Given the signal quality issues with PIO Mode 4 transfer rates in
some systems and such variables as error correction, caching, pro-
cessor overhead, and rotational speed, higher transfer rates may
not be achievable with the default transfer mode. Thus transfer
rates may be lower.
SOLUTION
Change the transfer mode of your CD-ROM Drive to Multi-word
or Ultra DMA Mode to maximize its capability.
• For DOS, see Custom Setup under SOFTWARE INSTALLA-
TION for more information.
• For Windows 95 or Windows NT, Bus Master driver must be
installed. Unless your computer dealer installed the driver when
you bought it or your motherboard supports Bus Master mode,
Windows will not use bus mastering for your CD-ROM Drive.
• Click My Computer | Control Panel | System | Device Man-
ager | CD-ROM controllers. If you are using the bus master,
PCI Bus Master will be displayed. If not and your mother-
board has the new PCI controller chipsets from Intel, for ex-
ample, the 430TX or 440BX, but does not have a CMOS set-
ting for Bus Master mode, you may have to get the driver
from Intel. Check with your dealer for more information.
PROBLEM
Cannot display the directory on an audio CD disc with the DIR
command.
CAUSE
The DIR command does not work with audio CD discs while in
DOS. You can use the command, however, to display the direc-
tory on a data CD.
NOTE: You can use the DIR command to display the directory
on an audio disc while in Windows using the command prompt or
MS-DOS Prompt. Refer to your Windows manual on how to find
the command prompt.
V. TROUBLESHOOTING