Piix4 Limitations; Reconfiguring Ultra Dma Support - NEC PowerMate VT 300i Series Service And Reference Manual

This completes the OS Restore (or "Fix OS") procedure. The system is now in a
state where data can be backed up. System settings previously located in the
C:\WINDOWS directory are now in a backup directory C:\WINDOWS.ORG.
Some or all applications might not exhibit full functionality
after the Fix OS is performed. To restore the system to its
factory-installed state, perform another OS Restore using
the Auto or Custom option.
Using the Fix OS option repetitively without using the Auto
or Custom option afterward might cause unpredictable
results.
To restore the system to its factory-installed state, perform another NEC OS
Restore using the
in Chapter 3 of the PowerMate VT 300i Series User's Guide).

PIIX4 Limitations

The following operating limitations apply to PIIX4 (PCI ISA IDE Xcelerator).

Reconfiguring Ultra DMA Support

The PCI IDE interface on the PowerMate VT 300i Series system supports the
latest ATA ULTRA DMA/33 interface. In order to do so, the PIIX4 component
that was recently released from Intel Corporation was incorporated in the
system. However, standard versions of Windows
release of PIIX4; these versions do not recognize the PIIX4 as capable of
supporting ULTRA DMA/33.
Several information files (.INF files) need to be added to standard versions of
Windows 95 so the operating system can incorporate PIIX4 features. NEC CSD
already includes these .INF files in the preinstalled software that comes with
your system. NEC CSD recommends that customers use the version of
Windows 95 that is included with their system.
Note:
version of Windows 95 that is included with their system
because this version is already configured for Ultra DMA/33.
! CAUTION
! CAUTION
or option (see "Launching the OS Restore CD"
Auto Custom
NEC CSD recommends that customers use the
NEC PowerMate VT 300i Series Release Notes A-9
®
95 were released prior to the