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ISA DoubleROM - Dual Bootable ROM Card
Product Code: DoubleROM
Product Description
Add two ROM sockets to any system with ISA slots.
No ROM chips are included by default. Select them with the drop-down boxes.

  • Choose from memory addresses between C0000 and F0000.
  • Supports 27(C)64, 28C64B, and 28C256 ROM chips.
  • Supports writing to EEPROMs.

Some example uses are:
  • Add HD floppy support to an XT (provided you already have an HD Floppy Controller).
    Add XT-IDE Universal BIOS to any machine, including 386, 486, and Pentium machines, to support more hard drive types.
  • Use as an EEPROM programmer. (XTIDECFG can program non-XT-IDE ROM images)
If choosing to include a ROM programmed with XT-IDE BIOS, you must specify in the checkout comments, what configuration you'd like. If you do not specify, it will come configured for 16-bit ISA interface at port 1F0 (for 286 and up).
You can always change the configuration with XTIDECFG at any time, since you can write to the EEPROMs.

Some possible XT-IDE BIOS Controller Types:

  • 16-bit IDE Interface (on a MultiIO or Sound card) (Primary (1F0), Secondary (170), Other)
  • 32-bit VLB/PCI IDE Interface (Primary (1F0), Secondary (170), Other)
  • 16-bit IDE interface in 8-bit mode (for CF card adapter only) (Primary (1F0), Secondary (170), Other)

If using in a 386 or up, and your System BIOS has the Option, and you have everything configured how you want it, you should enable ROM Shadowing at the addresses of the ROM Sockets in use, to improve performance.

The Airmail postage is untracked. Usually 2 weeks, but has taken up to 2 months on rare occasions.
The Courier postage is 3-7 days tracked, but only available to certain destinations.
The Express postage is 2-3 days tracked, but costs a lot more. You must supply a phone number with the Expedited option.
These postage times can be delayed by your country's customs service.

XT-IDE Universal BIOS Firmware and config utility
XT-IDE Universal BIOS Source
$30.00 inc. tax
Add to Cart Quantity:
Product Details
weight: 80g
Product Condition: New
Product Description
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