Avalue EBM-LX800 User Manual
Page 57

User’s Manual
EBM-LX800 User’s Manual
57
Mode 3 
Mode 4 
successively increased performance. In Auto 
mode, the system automatically determines the 
best mode for each device. 
IDE Primary Master UDMA
IDE Primary Slave UDMA
Auto
Disabled
Ultra DMA 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 the hard drive and the system 
software both support Ultra DMA, select Auto to 
enable BIOS support. 
IDE DMA Transfer Access
Enabled
Disabled
This item allows to enable or disable DMA 
(Direct Memory Access) support for all IDE 
devices. 
3.5.5
IT8888 ISA Decode IO
The decode I/O spaces can be programmed to claim PCI I/O cycle with 
Fast/Medium/Slow/Subtractive DEVSEL# (Device Select) timing speed. 
3.5.6
IT8888 ISA Decode Memory
The decode Memory spaces can be programmed to claim PCI Memory cycle with 
Fast/Medium/Slow/Subtractive DEVSEL# (Device Select) timing speed. 
