Chapter  4  Award BIOS Setup 
 
 
 
Prox-1635LF USER
′
S MANUAL 
Page: 4-19 
 
4.  Primary Master/Slave UDMA 
Secondary Master/Slave UDMA 
Ultra DMA/33 implementation is possible only if your IDE hard drive 
supports it and the operating environment includes a DMA driver 
(Windows 95 OSR2 or a third-party IDE bus master driver).    If you 
hard drive and your system software both support Ultra DMA/33, 
select Auto to enable BIOS support. 
5.  IDE HDD Block Mode 
Block mode is also called block transfer, multiple commands, or 
multiple sector read/write. If your IDE hard drive supports block mode 
(most new drives do), select Enabled for automatic detection of the 
optimal number of block read/writes per sector the drive can support. 
 
VIA ONCHIP PCI DEVICE: 
The options for these items are found in its sub menu. By pressing the 
<ENTER> key, you are prompt to enter the sub menu of the detailed options 
as shown below: 
Phoenix – Award CMOS Setup Utility 
VIA OnChip PCI Device 
Item Help 
USB 2.0 Support 
VIA-3043 OnChip LAN 
OnChip USB Controller 
USB Keyboard Support 
 
 
 
[Enabled] 
[Enabled] 
[All Enabled] 
[Disabled] 
 
 
Menu Level    ► 
 
 
↑↓→←:Move  Enter: Select  +/-/PU/PD:Value  F10:Save  ESC:Exit  F1:General Help 
   F5: Previous Values    F6:Fail-Safe Defaults   F7:Optimized Defaults 
 
Descriptions on each item above are as follows: 
 
1.  OnChip USB Controller 
This should be enabled if your system has a USB installed on the 
system board and you want to use it. Even when so equipped, if you 
add a higher performance controller, you will need to disable this 
feature. 
2.  USB Keyboard Support 
Select Enabled if your system contains a Universal Serial Bus (USB) 
controller and you have a USB keyboard.