Satellite U400 - Multimedia LED stay lit when computer is OFF

6 LED multimedia keys above the keyboard stay bright even when the computer is off and power is disconnected. I looked at the forum and tried the suggestions without success.
I disabled the Illumination using F2 at startup, but there is no change, the LEDs remained after that computer was arrested and taken out of SERVICE.

Also the HWSetup solution does not work because my system does not have a tab of enlightenment.
Suggestions more please.
Satellite U400 (PSU44A-00H00C)
BIOS is V.5 26/10/10. OS is XP Professional SP3.
I'm a computer illiterate so simple language please.

Satellite U400 is old enough laptop model. Since when you noticed this problem?

Tags: Toshiba

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