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will this note book operate with out a battery in the unit with just the power cord pluged in

HP Recommended
elite book 840
Microsoft Windows 7 (64-bit)

unit will not turn on and stay on. it starts up for 1/2 second then shuts down and about 4.5 seconds it repeats the same thing over and over

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HP Recommended



Yes, machine can run on main (AC) only. BUT the downside is when suddenly loosing power, un-predictable damages may occur specially HDD..



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