Option ROM Error

T

toml_12953

New Member
#1
I have a motherboard with an Intel 845 chipset and a mix of PCI and ISA slots. I'm trying to use an Adaptec AHA-1522A SCSI adapter (ISA bus) in it. When I boot the system, I get this message:

warning: Have option ROM can not be invoke

(The grammar is exactly the way it shows on the screen)

The SCSI board uses INT 11, I/O 340h and BIOS address DC000h.
I've tried caching the DC000 range and reserving INT 11 for the ISA slot. No good.
Is there some way to get this board to work?

TIA
Tom Lake
 
Justintime

Justintime

Moderator
#2
I had this error with another Adaptec card many years ago on a more modern board, think it was a 775.. seem to recall disabling legacy USB support freed up memory for the option ROM to load. Does the board have any onboard devices like a RAID or SCSI to disable? any reason for using such ancient hardware?
 
T

toml_12953

New Member
#3
Thanks for the reply. My goal in using this old system is to create 5.25" floppies for the TRS-80, Poly-88 and Superbrain systems I have. I need a way to take disk images from websites and create actual floppy disks. The Adaptec SCSI board has an onboard floppy controller that can read/write 360K disks with 128 byte sectors as well as 256 byte sectors and it can also read/write single density disks. Most floppy controllers made for PCs have problems with some old disk formats. I got the Adaptec to at least load by changing the I/O address but it still doesn't boot when I use it to replace the floppy controller on the motherboard. I get either message: Floppy fail (80) or Floppy fail (40).
 

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