ERSHC@CUNYVM (12/28/90)
My old but venerable XT clone, with 32 MB RLL drive was getting full
(the drive was), so I found a 40 MB MFM drive, and got a Western Digital
Gen2 plus to drive it. If I set the Gen2 to Bios address to ca00, I can
low level format, but not fdisk the drive. I took the drive and card
to a friend's machine and had no trouble formating it. Now, if I remove
the RLL drive, and set the MFM bios to c800, it will be drive C, but
of course I want BOTH drives to run. So here are two questions:
1) WHY? My best guess is that the RLL's Bios is larger than 200 (hex).
Is this possible? The RLL driver is an Adaptec 408100H BIOS 1987 411503-00A.
If so, does anyone know the jumper settings to move the address up?
2) And why can't I access the Gen2 card at an address higher than ca00?
I tried both cc00 and ce00, and no luck. Is this an XT limit?
Post a response or mail to me, I doubt this is of general interest,
but I'll summerize if anyone else wants to know.
Thanks
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eric schweitzer In theory, there is no difference
ershc@cunyvm.cuny.edu between theory and practice,
@cunyvm.bitnet But in practice there is.
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