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Level 2 diagnostic and system board LEDs
The following illustration shows the location of the LEDs on the level 2 diagnostic
panel, which is attached to the same metal frame as the hot-swap drive backplane.
You can view the diagnostic panel LEDs through a special cutout area on the top
cover, to the right of the cover-release latch. However, to determine the exact
source of the error condition in the server, you might need to remove the top cover
to view the location of a specific error LED on the system board.
See log
(CR17)
The meanings of these LEDs are as follows:
EXP
NMI
Over Temp
PCI
VRM
DASD
Out of Spec
PS2
Remind button
68
Hardware Maintenance Manual: xSeries 360 Type 8686
Table 7. Jumpers J52 and J56 on the system board
Jumper name
Flash ROM page swap (J56)
Power-on password override
(J52)
Over
Temp
EXP
NMI
(CR9)
(CR8)
(CR7)
SP bus
Fan
(CR4)
(CR6)
Description
The default position is pins 1 and 2.
See "Recovering the BIOS code" on page 18 for additional
information.
Changing the position of this jumper bypasses the power-on
password check if the jumper has been moved since the
server was last powered on. Move the jumper back to the
default position after the password is overridden. The default
position is pins 1 and 2.
Changing the position of this jumper does not affect the
administrator password check if an administrator password
is set.
See "Power-on password" on page 32 for additional
information on the power-on password.
PCI
DASD
VRM
(CR19)
(CR13)
(CR15)
Mem
CPU
Non
PS3
(CR3)
(CR18)
Redund
(CR10)
(CR16)
Attached expansion I/O failure
Nonmaskable interrupt
System over temperature condition
PCI failure
VRM failure
Hard disk drive failure
Power supplies being overdriven
Power supply number 2 failure
Remind to invoke remind mode
Out of
Remind
Spec
PS2
button
(CR14)
(CR11)
(SW1)
PS1
(CR12)
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Troubleshooting
