Int 15 Fn 4601  - Compaq Slt/286 - Modify Power Conservation/modem Config  [b]

   AX = 4601h
   BL = system inactivity timeout (1-21 minutes)
       FFh do not change
   CL = video display inactivity timeout (1-63 minutes)
       FFh do not change
   DL = current fixed disk drive inactivity timeout (1-21 minutes)
       FFh do not change
   DH = new modem state (00h turn off, 01h turn on, FFh don't change)

Return: CF clear if successful
       AH = 00h
       BL = current system inactivity timeout (1-21 minutes)
       CL = current video display inactivity timeout (1-63 minutes)
       DL = current fixed disk drive inactivity timeout (1-21 minutes)
       DH = modem state (FFh unchanged, 00h turned off, 01h turned on)
   CF set on error
       AH = error code
       01h input is out of range
       02h no modem present

See Also: AX=4600h,INT 77