Satellite A100: USB power error coming from standby after BIOS 5.20 upgrade

Hi
I am having USB power problems since upgrading my BIOS to 5.2 a few days ago on receipt of an e-mail from Toshiba advising the upgrade
I have a A100-200 PSAA8E running Windows XP Media Edition since upgrading the BIOS to 5.20 I get power fault messages but only when the PC comes out of standby
The error message tells me that " A USB device has exceeded the power limits of its hub port"
I have nothing connected to any of the USB ports
I have spoken to the tech guys at length at Toshiba but they cant seem to explain or fix the problem---one even thought it might be a motherboard problem but I've discounted that as the timing is too coincidental to be anything other than the BIOS upgrade.
If anyone knows of a fix then I would be grateful--is it possible to locate a previous BIOS and roll backwards from 5.20
I am assuming that if its the BIOS then when they issue another one it will correct itself?
Comments appreciated
Phil

> Hi
>
> I am having USB power problems since upgrading my
> BIOS to 5.2 a few days ago on receipt of an e-mail
> from Toshiba advising the upgrade
>
> I have a A100-200 PSAA8E running Windows XP Media
> Edition since upgrading the BIOS to 5.20 I get power
> fault messages but only when the PC comes out of
> standby
>
> The error message tells me that " A USB device has
> exceeded the power limits of its hub port"
>
> I have nothing connected to any of the USB ports
>
> I have spoken to the tech guys at length at Toshiba
> but they cant seem to explain or fix the
> problem---one even thought it might be a motherboard
> problem but I've discounted that as the timing is too
> coincidental to be anything other than the BIOS
> upgrade.
>
> If anyone knows of a fix then I would be grateful--is
> it possible to locate a previous BIOS and roll
> backwards from 5.20
>
> I am assuming that if its the BIOS then when they
> issue another one it will correct itself?
>
> Comments appreciated
>
> Phil
I have an Equium 100-147 and am also getting 'A USB device has
> exceeded the power limits of its hub port" message
. It doesn't seem to affect anything. It seems to be just a nuisance value. I have nothing connected to the usb ports when it flashes up and also the message only appears now and then. I also updated the bios. Oh well!

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