Your Computer's Parts - HP 9000 300 Series Installation Reference

Your Computer's Parts
The Figures on the facing page show the various parts of the computer which are referred
to in this Reference. Note that due to the large number of different configurations, some
of the items pointed out may be in a different place than in these Figures. They will,
however, look the same.
Power Switch - This is the switch you use to turn power on and off. When power is
on, the switch is "in" or flush with the front of the computer; the switch is "out" when
power is off.
-LINE ON Indicator - This green indicator is lit when power is turned on. When power
is off, the indicator is off.
Fans - The computer has two small built-in fans to keep it cool. The fans should always
be running when the computer is on. If either fan ever goes off while the computer is
powered on, switch the computer off and call your HP Service Representative.
Accessory Slots - Remove these covers to install memory cards, interface cards, and other
accessories.
Power Socket - The three-pronged power socket is especially designed for an HP power
cord. The power cord is shipped in the carton this reference came in.
Voltage Select Switch - The computer is designed to run at either 85-129 Vac or 187-250
Vac. The line frequency range is 48-66 Hz. The voltage select switch sets the computer
to run at the lower (120 Vac) or upper (240 Vac) range.
Fuse - A fuse rated at 250V, 8A, must be in place for your computer to run safely.
HP-HIL Interface - You will plug your HP-HIL cable into this receptacle.
4 Installing Your System