NEC LS2400, Руководство пользователя, Страница: 107 / 186

Problem Solving 5-3
Static Precautions
An electrostatic discharge (ESD) can damage disk drives, option boards, and
other components. You can provide some ESD protection by wearing an
antistatic wrist strap attached to chassis ground when handling system
components.
Electronic devices can be easily damaged by static electricity. To prevent
damage, keep them in their protective packaging when they are not installed
in your system.
Troubleshooting Checklists
The following subsections provide troubleshooting checklists for problems
that occur at initial system startup, when you run new application software,
and after the system hardware and software have been running correctly.
Initial System Startup
Incorrect installation or configuration usually causes problems that occur at
initial system startup. Hardware failure is a less frequent cause. If you have
problems during initial system startup, check the following:
!
Is the system power cord properly connected to the system and plugged
into a NEMA 5-15R outlet (100-120 V ac) or a NEMA 6-15R outlet (200-240
V ac)?
!
Is AC power available at the wall outlet?
!
Is the power on/off push-button switch on the front panel in the ON
position (power on LED should be lit)?
!
Are all cables correctly connected and secured?
!
Are all the PCI/ISA option boards fully seated in their connector slots on
the system board?
!
Are all jumpers and switch settings on option boards and peripheral
devices correct? To check these settings, see the respective appendices. If
applicable, ensure that there are no conflicts; for example, two option
boards sharing the same interrupt.
!
Are the processors fully seated in their slots on the system board? Refer to
the “Upgrades and Options” chapter for installation instructions?
!
Are all DIMMs fully seated and installed correctly? Refer to the “Upgrades
and Options” chapter for installation instructions?
!
Are all option boards and disk drives installed correctly? Refer to the
“Upgrades and Options” chapter.
!
Is the system hard disk drive properly formatted or defined?