APM NH.SYS

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Replacement APM driver (APM_NH.SYS) APM_NH.SYS is based on 10.037 level of IBM's APM.SYS (same as XR_D002). Its purpose is to honour the APM hooks installed by VIAAPM.SYS while allowing usual APM tasks such as power-down or suspend mode. It is therefore essential that one installs APM_NH.SYS rather than APM.SYS, so the KT266A idle hook would not be taken out by IBM's driver.

DEVICE=\OS2\BOOT\APM_NH.SYS
Tip
In System which only have ACPI it is reported that APM-NH.SYS works even it is an Intel chipset.
Product Support
OS/2 1.3
OS/2 2.0
OS/2 2.1
OS/2 2.11 SMP
OS/2 Warp 3 C
OS/2 Warp Connect C
OS/2 Warp 4 C
OS/2 Warp Server for e-Business C