axaris@acsu.buffalo.edu (vassilios e axaris) (11/19/90)
Hello, Yesterday I installed a 3.5 in floppy drive in my AT with Phoenix 3.06 bios and on board FDC. But something was strange and I'd like a possible explanation. After I plugged the 3.5 and booted the machine the BIOS did not complain about having a 1.44 Meg drive instead of the 1.2 meg that it knew and everything worked fine. I went and changed the cmos entry and successfully copied and read files off the 3.5 which I used with 720K disks formatted with dos 3.3. Then I replaced the 3.5 with the original 5.25 (1.2 M) and it also worked with the wrong cmos settings (ie drive B was listed as 1.44 Meg). Why isn't the bios complaining about the inaccurate cmos settings? Do the 1.2 and 1.44 drives appear the same to the bios? or is the bios smart enough to detect the type of drive it has to deal with? My 1.2 drives read and write 360k floppies without any changes or indications using either driver.sys or drivparam. Any possible explanation would be grately appreciated. Vassilios E. Axaris
lodzins@pilot.njin.net (Dean Lodzinski) (11/23/90)
If I remember correctly, I have Pheonix BIOS. If I do what you did the system won't complain but when I start to copy/format I will get errors. -- Dean Lodzinski DEAN_L@TURBO.Kean.edu, lodzins@pilot.njin.net 47 Mercury Circle csra19@TURBO.Kean.edu or D.LODZINSKI on GEnie South Amboy, NJ 08879 Dean Lodzinski on Hologram Inc., FNET Node 133, USA at 908/727-1914 (1200/2400/9600)