|"BIOS - my bios does not have power management option"|
Brand name system bios versions often have very few things you can set in them.
You won't necessarily see something there regarding power management.
Your Owner's Manual says:
Using the System Setup Program, starting on page 86 of the pdf
"NOTE: Your operating system may automatically configure most of the options available in system setup,thus overriding the options you set through system setup. (An exception is the external Hot key option...)"
"NOTE: For information about a specific item on a system setup screen, highlight the item and see the Help area on the screen."
"Options or values that you cannot change (because they are determined by the computer) appear less bright. "
(Are greyed out)
As usual for a brand name system, there is very little info in the Owner's manual about what you see in the bios Setup screens.
You MUST load the main chipset drivers for the mboard, in the operating system, otherwise the operating system probably does not have the proper info about how the ACPI features are supported by your mboard.
XP doesn't have the drivers built in for most things that first came out after XP was first released, circa 2001, and it doesn't have some of the drivers built in for things made before that.
Vista is much newer, so it can recognize things on newer mboards better with what's built into it; however it's still a good idea to load the main chipset drivers to make sure the op system has all the proper drivers for and info about the mboard components.
Whenever you load Windows from a regular Windows CD (or DVD) from scratch, after Setup is finished you must load the drivers for the mboard, particularly the main chipset drivers, in order for Windows to have the proper drivers for and information about your mboard hardware, including it's AGP or PCI-E, ACPI, USB 2.0 if it has it, and hard drive controller support. If you have a generic system and have the CD that came with the mboard, all the necessary drivers are on it. If you load drivers from the web, brand name system builders and mboard makers often DO NOT have the main chipset drivers listed in the downloads for your model - in that case you must go to the maker of the main chipset's web site, get the drivers, and load them.
NOTE that if you DO get the main chipset drivers from the maker of the main chipset's web site, MAKE SURE they are ones for a LAPTOP main chipset ! Similar main chipset drivers have more info built into them that are unique to laptops.
E.g.The Intel web site has different main chipset drivers for desktop and laptops
"Device manager - USB hub "allowed this device to turn on computer" is greyed out"
My XP desktop computer has
a checkmark beside
Allow the computer to turn off this device to save power
Allow this device to bring this computer out of standby is greyed out
I have my Control Panel - Classic view - Power Options set to NEVER for System Standby
That may also be greyed out if you haven't installed the main chipset drivers !
"Registry - put in USBHACKS and USBBIOSx"
If you're SURE
- the main chipset drivers have been installed
- Control Panel - Classic view - Power Options is NOT set to NEVER for System Standby
You probably have a hardware problem.
See starting page 47 of the pdf of your Owner's Manual for how to run the Dell Diagnostics.
If that's not on your hard drive, download it here:
Dell™ Inspiron™ 710m
(RIGHT click on the download link, choose Save Link As....)