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APM NH.SYS: Difference between revisions

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Replacement APM driver (APM_NH.SYS)
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.
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=APM_NH.SYS
  DEVICE=APM_NH.SYS


'''Tip:''' In System which only have ACPI it is reported that APM-NH.SYS works even it is a Intel chipset.
'''Tip:''' In System which only have ACPI it is reported that APM-NH.SYS works even it is a Intel chipset.


{| class="wikitable"
{{ProdS |V30=S|V31=S|V40=S|V45=S}}
|+Platform Support:
!OS/2 2.x
!OS/2 3.0
!OS/2 4.0
!OS/2 4.5x
|-
|No
|Yes
|Yes
|Yes
|}


[[Category:DEVICE Statements]]
[[Category:DEVICE Statements]]

Revision as of 14:24, 10 April 2019

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=APM_NH.SYS

Tip: In System which only have ACPI it is reported that APM-NH.SYS works even it is a 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 S
OS/2 Warp Connect S
OS/2 Warp 4 S
OS/2 Warp Server for e-Business S