![background image](http://html.mh-extra.com/html/nec/express-5800-120lg/express-5800-120lg_service-manual_251153022.webp)
1-6
System Overview
1
5.25-inch device bay
Backup tape drives may be installed in the 5.25-inch device bay.
2
CD-ROM drive
The CD-ROM drive reads data from the inserted CD-ROM.
2
-1
Headphone jack
2
-2
Volume control
2
-3
Access lamp (lights in amber while being accessed)
2
-4
CD-ROM slot
2
-5
Emergency hole
2
-6
Open/Close button
3
Disk lamp (green/amber)
The disk lamp is lit green if a hard disk installed in the server is accessed. If a hard disk is
defected, the lamp is lit amber. During the rebuild processing, the lamp is lit green or amber
alternately. (This occurs only in the disk array configuration.)
4
3.5-inch hard disk drive bay
The 3.5-inch hard disk drive bay contains up to six hard disks. Hard disks having the
thickness of 1 inch can be inserted into the slots.
The SCSI IDs are defined as follows:
ID0 to ID5 from bottom to top.
5
3.5-inch floppy disk drive
Insert a 3.5-inch floppy disk to the 3.5-inch floppy disk drive to read data from the disk or write
data to the disk.
5
-1: Eject button
5
-2: Disk inserting section
5
-3: Floppy disk access lamp (lit green during accessing)
6
Cover open sensor
The cover open sensor detects the open of the front door.
7
Power switch
The power switch is used to turn on/off the power. If you press the switch once, then the
POWER/SLEEP lamp goes on and the power is turned on. If you press the switch again, the
power is turned off. The system is forcibly shut down when the power switch is pressed
continuously for four seconds or longer.
8
Lamps
(see the figure on the previous page)
9
Reset switch
The reset switch is used to reset the server.
10
Dump switch (NMI switch)
Non-maskable Interrupt switch.
The dump switch is used to collect the event logs having occurred in the server.
Figure 1-3. Front View (Door opened)
Summary of Contents for Express 5800/120Lg
Page 1: ... S e r v i c e G u i d e EXPRESS5800 120Lg ...
Page 2: ......
Page 4: ......
Page 10: ......
Page 73: ...Disassembly and Reassembly 4 7 Figure 4 2 Installing the Left Hand Side Access Panel ...
Page 132: ......
Page 161: ...6 Illustrated Parts Breakdown Exploded View Field Replaceable Units ...
Page 168: ......
Page 169: ...A Specifications System Specifications ...
Page 179: ...C IRQ and I O Port Addresses Interrupt Requests PIRQ and PCI Device ...
Page 188: ......
Page 198: ......
Page 203: ...xx ...
Page 204: ... 456 01673 000 ...