Thinkpads Forum

ThinkPad Oct 17, 2005
Power Management Driver for Windows 98 SE/Me/2000/XP (ACPI)

Version 1.32(Certified)
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This package provides ACPI power management support (Fn+F3/F12 keys)
to the following ThinkPad computers for Windows 98 SE/Me/2000/XP users
only under the following configurations:

Windows 98 SE ACPI support:
- ThinkPad G40
- ThinkPad R30, R31
- ThinkPad TransNote
REMINDER: Windows 98 APM mode is not supported.

Windows Me ACPI support:
- ThinkPad A20m, A20p, A21e, A21m, A21p, A22m, A22p, A22e
- ThinkPad A30, A30p, A31, A31p
- ThinkPad R30, R31, R32
- ThinkPad s31
- ThinkPad T20, T21, T22, T23
- ThinkPad T30(*2)
- ThinkPad X20, X21, X22, X23, X24
- ThinkPad TransNote

Windows 2000 ACPI support:
- ThinkPad 570E, i Series 1157(*1)
- ThinkPad A20m, A20p, A21e, A21m, A21p, A22m, A22p, A22e
- ThinkPad A30, A30p, A31, A31p
- ThinkPad G40, G41
- ThinkPad R30, R31, R32
- ThinkPad R40
- ThinkPad R50, R50e, R50p, R51, R51e, R52
- ThinkPad s31
- ThinkPad T20, T21, T22, T23
- ThinkPad T30
- ThinkPad T40, T40p, T41, T41p, T42, T42p, T43, T43p
- ThinkPad X20, X21, X22, X23, X24
- ThinkPad X30, X31, X32
- ThinkPad X40, X41
- ThinkPad Z60m, Z60t
- ThinkPad TransNote

Windows XP ACPI support:
- ThinkPad 570E, i Series 1157(*1)
- ThinkPad A20m, A20p, A21e, A21m, A21p, A22m, A22p, A22e
- ThinkPad A30, A30p, A31, A31p
- ThinkPad G40, G41
- ThinkPad R30, R31, R32
- ThinkPad R40, R40e
- ThinkPad R50, R50e, R50p, R51, R51e, R52
- ThinkPad s31
- ThinkPad T20, T21, T22, T23
- ThinkPad T30
- ThinkPad T40, T40p, T41, T41p, T42, T42p, T43, T43p
- ThinkPad X20, X21, X22, X23, X24
- ThinkPad X30, X31, X32
- ThinkPad X40, X41, X41 Tablet
- ThinkPad Z60m, Z60t
- ThinkPad TransNote

(Note)
*1: For ThinkPad 570E, i Series 1157:
- Suspend service after ejecting the system from Port Replicator
while suspending.
- Does not support Fn + F3/F12 keys
*2: Only the following T30 models support the Windows Me:
2366/2367-x1x, x2x, x3x, x4x, x5x, A6x and A7x except for
M1x, M2x, M3x, M4x and M5x.
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<1.32 (Certified)>
-(Fix) Fix the installation failure when a domain user account is used.

Available via ThinkVantage Software Installer. Gets rid of PM driver notification on Windows Update.

Thanks for the info GomJabbar.


BTW I've been wondering, does it make a difference in battery life if, while on battery power, you set your ThinkPad to run in Lowest vs. Adaptive (vs. Highest) maximum CPU speed?

I previously had my X40 set to Lowest max CPU speed while on battery power, but then I noticed on my X41T that the ThinkPad extended power scheme software lists no difference in estimated battery life no matter what max CPU speed I choose (which doesn't make sense to me).

But I ended up changing the battery power mode to run at Adaptive CPU speed now. Thing is, I now notice that the 4-cell battery gives me a rather short battery life, but I'm not exactly sure if it's really any shorter than before when I had the CPU set to Lowest speed.

Has anyone else noticed a perceivable difference between the various max CPU speed modes (specifically Lowest vs. Adaptive) in regards to:

- battery life
- browsing/office apps performance