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Wednesday, April 11, 2012

A200 Toshiba Satellite Random Restarts / Freeze When on AC


  • Random restarts
  • Boots ok on battery
  • Toshiba A200 Satellite laptop
  • Over 4 years old
  • Works in safe mode


  • Boot up in Safe Mode
  • Start > Control Panel > System > Device Manager > Processors
  • Disable both processors
  • Restart the laptop
  • Boot into normal Windows
  • Should work fine, if not you may want to look at the rest of this blog
  • This is apparently a temporary fix and your laptop will not last years and years without replacing a chip (see below)

Causes (Possible):

  • Poor battery life and power switching between AC and battery
  • A NEC chip on the motherboard that regulates power is deteriorating and causing the laptop to not power properly

Alternative fixes:

  1. Set power settings to Power Saver
  2. Set power to High Performance
  3. Boot into BIOS and change Dynamic CPU Frequency Mode = Always Low (NOT DYNAMIC)
  4. Charge up battery and only use laptop on battery

More Info (Google key words such as):

  • a200 toshiba random restarts
  • Satellite A200 freezes or restarts anytime
  • A200 restarts when plugged into AC
  • Toshiba laptop freezing when charger is pluggded in
  • Toshiba Random Freeze/ Shutdown/ Restart
  • a200 toshiba NEC/TOKIN OE128 Proadlizer Capacitor problems