Windows 7 and Server 2008 include a hidden power efficiency diagnostic report that can help make your computer more energy efficient. The report is generated through the powercfg utility and monitors your computer for 60 seconds. Power settings, hardware and what you computer is doing is all monitored to identify power waste. Once completed, the report will show errors, warnings and general information about the power efficiency capabilities of your hardware and what is preventing it from operating efficiently.
Generating the report requires access to an administrative level Command Prompt. Click on the Start Button, type in cmd, hold down CTRL and SHIFT and then hit Enter. That will start an administrative level command prompt.
Next, type in powercfg /energy and hit enter.
After the report is generated the file is placed in c:\windows\system32\. Before you can open the report with a browser, copy the file to your desktop first. Both Firefox and Internet Explorer seem to have issues opening files from the System32 folder.
C:\Windows\system32>cd %userprofile%\desktop
before "powercfg /energy"
and the report will be created on your desktop :)
So it is advisable to run this every now and then, the report might surprise you as well.
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.Device Name USB Root Hub
Host Controller ID PCI\VEN_8086&DEV_24DE
Host Controller Location PCI bus 0, device 29, function 3
Device ID USB\VID_8086&PID_24DE
Port Path
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.Device Name USB Root Hub
Host Controller ID PCI\VEN_8086&DEV_24DD
Host Controller Location PCI bus 0, device 29, function 7
Device ID USB\VID_8086&PID_24DD
Port Path
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.Device Name USB Mass Storage Device
Host Controller ID PCI\VEN_8086&DEV_24DD
Host Controller Location PCI bus 0, device 29, function 7
Device ID USB\VID_0951&PID_1607
Port Path 1,4
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.Device Name Generic USB Hub
Host Controller ID PCI\VEN_8086&DEV_24DD
Host Controller Location PCI bus 0, device 29, function 7
Device ID USB\VID_058F&PID_6254
Port Path 1
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.Device Name Trust Webcam 14830
Host Controller ID PCI\VEN_8086&DEV_24DD
Host Controller Location PCI bus 0, device 29, function 7
Device ID USB\VID_0C45&PID_6242
Port Path 8
USB Suspend:USB Device not Enteri
Most of my errors were addressed in advanced power settings:
Control panel - power options - then change plan settings (under your current plan) - and change ADVANCED power settings.
I chose maximum performance for PCI-Express (video card), paused slide show, max power saving wireless (I don't have wireless). Got rid of some of the errors / warnings.
The reason is this: If you are wasting power, you can't use power for the processor when it's needed-- so the processor slows down.