SiS IDE Driver Installation For DOS ===================================== 01) Run INSTALL.EXE in the install utility diskette to install SiS IDE DOS PIO mode driver or SiS IDE DMA mode driver. 02) INSTALL.EXE program will add the following line in CONFIG.SYS file : "DEVICE=C:\SISIDE\SISDR.SYS" for PIO mode driver or "DEVICE=C:\SISIDE\SISDR.SYS /M" for DMA mode driver. 03) Users can use /A /R parameters to set the wait states and IDE BUS MASTER CONFIGURATION SPACE BASE ADDRESS manually. For example: "DEVICE=C:\SISIDE\SISDR.SYS /A3456 /R6543" means active time for channel 0 master is 3*30ns channel 0 slave is 4*30ns channel 1 master is 5*30ns channel 1 slave is 6*30ns recovery time for channel 0 master is 6*30ns channel 0 slave is 5*30ns channel 1 master is 4*30ns channel 1 slave is 3*30ns 04) Hard Drives' default wait states are set by using Hard Drive internal information automatically. The recommended value table for different mode Hard Drives is as follow : Hard Disk Mode 4 3 2 1 0 ================================================== Recovery Time 1 3 8 A 0 Active Time 3 3 6 6 0 ================================================== Note that the range for Recovery Time is 0-F and for Active Time is 0-7. 05) After IDE DOS driver installed. Some mode 4 hard disks may cause the system hang when we reboot the system. Users can avoid this by downing the speed in manual way as described in 03) 04). For example, change "DEVICE=C:\SISIDE\SISDR.SYS" into "DEVICE=C:\SISIDE\SISDR.SYS /A3 /R3"