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5338
August 13th, 2011 10:00
XPS M1330 Battery Time Win 7 64 bit Problem ...
hey, first of all sorry for my "not perfect" english ..
my problem: i have updated my laptop from vista 32bit to win 7 64 bit everything works fine, but with vista i have a battery time with round about 7 hours at 100% BUT with win 7 i have only 4 hours .
i have every automatic update from windows, additionaly the "newest" dell driver (Bios, Intel ...)
but this "error" keeps on existing
what can i do ?
thank you all for every helping idea
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speedstep
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August 14th, 2011 06:00
Acpi 64 bit drivers need to be installed. Install the vista drivers for chipset and for power management.
If the battery is more than a few months old it could also have lost some capacity.
atom13
3 Posts
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August 14th, 2011 09:00
thank you for you answer, but where can i found this drivers ? (acpi / power management)
ejn63
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August 14th, 2011 09:00
They are part of the Dell notebook system software and the chipset driver. There may not be NSS for WIndows7-64 bit on this model, though.
atom13
3 Posts
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August 14th, 2011 10:00
thank you again, both drivers are installed, but the problem keeps on ...
the battery is not the newest and have lost some capacity, but under vista i have today nearly 7 hours and one day later under win 7 i have only 4 hours ... i have the 8 cell battery (the big one)
i cant understand this "error"