Int 15/AX=4601h

Compaq SLT/286 - MODIFY POWER CONSERVATION/MODEM CONFIGURATION

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

Category: Vendor-specific BIOS Extensions - Int 15h - C

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