this "should" force it to boot from the DVD.
<span id="INSERTION_MARKER"> <span id="INSERTION_MARKER"> HI, i updated snow leopard and it tried to restart and just shut down. when i restarted it would not boot. i have tried every trouble shooting trick i could think of..when i booted in verbose it said AppleIntelCPUPowerManagement timed out disk0s3.....where do i go from here? <span id="INSERTION_MARKER">The snow leopard installation disk is in the computer.....

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