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2.2 KiB
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34 lines
2.2 KiB
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Floppy and CD-ROM drives
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The *Floppy and CD-ROM drives* page contains settings related to the emulated machine's base removable devices.
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Floppy drives
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Up to four floppy disk drives can be attached to the emulated system, although not all BIOSes provide support for more than two drives. The following options apply to the selected drive:
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* **Type:** Type of floppy drive to emulate. Some drive types have special properties:
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* **5.25" 1.2M PS/2** and **3.5" 1.44M PS/2:** IBM PS/2 drives, which have inverted polarity on the Density Select pin.
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* **5.25" 1.2M 300/360 RPM** and **3.5" 1.44M 300/360 RPM**: "3-mode" drives, which are capable of reading 360K 5.25" or PC-98 3.5" disks. BIOS support for 3-mode floppy drives is required.
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* **3.5" 1.44M PC-98:** NEC PC-98 drives, which are 3-mode and have inverted polarity on the Density Select pin.
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* **Turbo timings:** Run the drive mechanism as fast as possible. This decreases access time and makes some incorrectly-dumped floppies readable, but may cause issues some operating systems and applications.
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* **Check BPB:** When disabled, 86Box will skip checking the `DOS BIOS Parameter Block <https://en.wikipedia.org/wiki/BIOS_parameter_block>`_ when determining the physical media format for a floppy image on this drive. See :ref:`usage/diskimages:Floppy disk detection` for more details.
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.. note:: Disabling "Check BPB" may be required in order to access UNIX/Linux installation floppies or other raw stream disks, as outlined on the page linked above.
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Floppy disk images can be inserted and removed through the status bar or the *Media* menu.
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CD-ROM drives
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-------------
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Up to four CD-ROM / DVD-ROM optical disc drives can be attached to the emulated system. The following options apply to the selected drive:
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* **Bus:** bus to attach the drive to. ATAPI (IDE) and SCSI are supported.
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* **Channel**/**ID:** where to attach the drive on the selected bus. See :ref:`settings/hdd:Adding a new disk` for more information on IDE channels.
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* **Speed:** maximum transfer speed for the drive. Up to 72x is supported.
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CD-ROM / DVD-ROM disc images can be inserted and removed through the status bar or the *Media* menu.
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