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Adaptec 1542
I tried playing with the Bios options.
same results.
to make suggestions practical I copied the options in my BIOS to this
email.
Host adapter IRQ - 12 (i tried turning IRQ12 in the mummieboard bios to
Legacy ISA and ISAPnP/PCI and neither worked. i can only select IRQ
9,10,11,12,14,15)
Host Adapter DMA Channel - 5 (tried other DMAs as well)
Host Adapter SCSI ID - 7 (i am not sure how the hard disks are terminated
- there is no jumper table on them) but i suppose that if all 3 work in
DOS both every one single and all together then termination is automatic
and is working just fine :-)
SCSI parity checking - Disabled (tried when enabed - nada)
DMA transfer rate - 5MB/sec
Host adapter SCSI termination - Enabled (obvious)
SCSI device configuration:
Enable SYNC negotiation on all devices - YES (tried to disable this -
didnt solve the problem)
Enable FAST Scsi - NO on all devices
Enable Disconnection - No on all devices, tried YES and didnt help
Send Start Unit Command - Yes on ID's 0,2,3,7
Ignore on Bios Scan - No on ID's 0,2,3,7, YES on all the rest.
Advanced Config Options
-----------------------
Floppy Controller IO Port - 3F0h-3F7h (doesnt matter, i disabled the
floppy using DIP switch)
Reset SCSI Bus at Power-On - Enabled
Host Adapter Bios - Enabled
System Boot (INT 19h) Controlled by Host Adapter Bios - Enabled
Extended BIOS translation for DOS drives >1GB - Disabled (150MB drives)
Support removable disks under bios as Fixed Disks - Enabled
Dynamically scan SCSI bus for BIOS devices - Enabled
BIOS support for >2 Drives (MSDOS 5 and above) - enabled
Immediate return on seek command - Disabled (played with this one too)
Bios support for floptical drived (what the hell are floptical drives?) -
disabled
thats it. the cont sits on IO 334 (tried moving it)
anybody have any helpful suggestions or encountered something like this in
the past?
Regards
Miki Shapiro <Aris>
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