Power Management Issues (Underclocked Processor)

A few months ago, I installed Windows Vista on my Uniwill P50CA Notebook.
Ever since installation I've had an issue with Vista's power management
system. My CPU will only clock at 800 Mhz no matter which power scheme I've
selected. I've even created a custom scheme in which the processor throttling
is set to 100%. I've also noticed that the memory is not clocking as fast as
it should. To check for a possible hardware problem, I installed Windows XP
x64 on a second partition. In XP, the CPU and memory behave just fine. The
PowerNow! functionality of the CPU also works fine. I've been having this
problem for months now, and have been hoping for a driver release or some
patch from Microsoft to fix this problem. I've been all over the internet and
I simply cannot figure out what my problem is. I've also run the Windows
Vista Upgrade Advisor from Microsoft's site, and it told me I was fine to
upgrade. Their hardware compatibility website also says nothing about this
computer. Please someone help me! I'm at my wits end.

Uniwill P50CA (AKA Fujitsu-Siemens Amilo A1667G)
AMD Turion 64 2.2 GHz

Your wits should end at the likely realization you can't run
Vista on that machine, I'd stick with XP.

"Enix06" <Enix06 RemoveThis @discussions.microsoft.com> wrote in message
news:9178A5B4-F89E-4A16-89B9-435A17671B87@microsoft.com...
>A few months ago, I installed Windows Vista on my Uniwill P50CA Notebook.
> Ever since installation I've had an issue with Vista's power management
> system. My CPU will only clock at 800 Mhz no matter which power scheme
> I've
> selected. I've even created a custom scheme in which the processor
> throttling
> is set to 100%. I've also noticed that the memory is not clocking as fast
> as
> it should. To check for a possible hardware problem, I installed Windows
> XP
> x64 on a second partition. In XP, the CPU and memory behave just fine. The
> PowerNow! functionality of the CPU also works fine. I've been having this
> problem for months now, and have been hoping for a driver release or some
> patch from Microsoft to fix this problem. I've been all over the internet
> and
> I simply cannot figure out what my problem is. I've also run the Windows
> Vista Upgrade Advisor from Microsoft's site, and it told me I was fine to
> upgrade. Their hardware compatibility website also says nothing about this
> computer. Please someone help me! I'm at my wits end.
>
> Uniwill P50CA (AKA Fujitsu-Siemens Amilo A1667G)
> AMD Turion 64 2.2 GHz
>