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Server System SR9000MK4U Product Guide 199
System Access Warnings
Caution: To avoid personal injury or property damage, the following safety instructions apply
whenever accessing the inside of the product:
• Turn off all peripheral devices connected to this product.
• Turn off the system by pressing the power button to off.
• Disconnect the AC power by unplugging all AC power cords from the system or wall
outlet.
• Disconnect all cables and telecommunication lines that are connected to the system.
• Retain all screws or other fasteners when removing access cover(s). Upon
completion of accessing inside the product, refasten access cover with original
screws or fasteners.
• Do not access the inside of the power supply. There are no serviceable parts in the
power supply. Return to manufacturer for servicing.
• Power down the server and disconnect all power cords before adding or replacing
any non hot-plug component.
• When replacing a hot-plug power supply, unplug the power cord to the power supply
being replaced before removing the power supply from the server.
Caution: If the server has been running, any installed processor(s) and heat sink(s) may be hot.
Unless you are adding or removing a hot-plug component, allow the system to cool before
opening the covers. To avoid the possibility of coming into contact with hot component(s)
during a hot-plug installation, be careful when removing or installing the hot-plug
component(s).
Caution: To avoid injury do not contact moving fan blades. If your system is supplied with a guard
over the fan, do not operate the system without the fan guard in place.