Hypertherm PCBS-0124 - Manual (Page 46)

Award BIOS Setup
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The following options are selectable only if the ‘IDE Primary Master’ item
is set to “Manual”
Cylinder: Options Min = 0, Max = 65535
Set the number of cylinders for this hard disk.
Head: Options Min = 0, Max = 255
Set the number of read/write heads
Precomp: Options Min = 0, Max = 65535
**** Warning: Setting a value of 65535 means no hard disk
Landing zone: Options Min = 0, Max = 65535
****
Sector: Options Min = 0, Max = 255
Number of sectors per track