Toshiba L515, L517 manual SystemBoard, System Board, Procedure1MessageCheck

2.4￿ System￿Board￿ 2￿￿Troubleshooting￿

2.4￿ System￿Board￿

To￿check￿if￿the￿system￿board￿is￿defective￿or￿malfunctioning,￿follow￿the￿troubleshooting￿ procedures￿below￿as￿instructed.￿

Procedure￿1￿￿Message￿Check￿

Procedure￿2￿￿Test￿Program￿Check￿

Procedure￿3￿￿Replacement￿Check￿

Procedure￿1￿￿￿￿Message￿Check￿

When￿the￿power￿is￿turned￿on,￿the￿system￿performs￿the￿self-diagnostic￿Power￿On￿Self￿Test￿(POST)￿embedded￿in￿the￿BIOS￿ROM.￿￿The￿POST￿tests￿and￿initializes￿each￿IC￿on￿the￿system￿ board.￿

￿￿ If￿an￿error￿message￿appears￿on￿the￿display,￿perform￿Check￿1.￿

￿￿ If￿there￿is￿no￿error￿message,￿go￿to￿Procedure￿2.￿

￿￿ If￿FREE-DOS￿or￿Windows￿Vista￿Home￿Edition￿is￿loaded￿normally,￿go￿to￿Procedure￿3.￿

Check￿1￿ If￿the￿following￿error￿message￿is￿displayed￿on￿the￿screen,￿press￿the￿F1￿key￿ as￿prompted.￿￿These￿errors￿occur￿when￿the￿system￿configuration￿preserved￿ in￿the￿RTC￿memory￿(generally￿called￿CMOS￿memory)￿does￿not￿match￿the￿ actual￿configuration￿or￿when￿the￿data￿is￿lost.￿

￿If￿you￿press￿the￿F1￿key￿as￿prompted￿by￿the￿message,￿the￿SETUP￿screen￿ appears￿to￿set￿the￿system￿configuration.￿￿If￿the￿error￿message￿appears￿ frequently￿when￿the￿power￿is￿turned￿on,￿replace￿the￿RTC￿battery.￿￿If￿any￿ other￿error￿message￿is￿displayed,￿perform￿Check￿2.￿

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￿ ***￿Bad￿RTC￿battery￿***￿

￿Check￿system.￿￿Then￿press￿[F1]￿key￿￿

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Check￿2￿ If￿the￿following￿error￿message￿is￿displayed￿on￿the￿screen,￿press￿any￿key￿as￿

prompted￿by￿the￿message.￿

￿The￿error￿message￿appears￿when￿either￿data￿stored￿in￿RAM￿to￿be￿resumed￿

is￿lost￿because￿the￿battery￿has￿been￿exhausted￿or￿the￿system￿board￿is￿faulty.￿

￿If￿any￿other￿error￿message￿displays,￿perform￿Check￿3.￿

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Check￿3￿￿￿￿￿￿￿￿￿Resume￿failure￿and￿press￿any￿key￿to￿continue.￿

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Satellite￿/￿Satellite￿Pro￿L510￿/￿L515￿/￿L517￿￿￿Maintenance￿Manual￿ 2-9￿