HP 340 Series Service Manual page 108

If extended testing is selected by pressing
I
CTRL
H~J
then [TI, the LAN board is subject to the
normal testing plus external loopback tests. The following error nlessages may be displayed
below the LAN identification message:
• CABLE Failed
This shows that the cable is not connected or improperly ternlinated.
• MAU Failed
This shows that the external media access unit (MAU) circuitry failed. This is usually
found with AUI LAN configurations and not with ThinLAN configurations where the
interface is built-in.
• NO HEARTBEAT
This message is only a warning. This shows that the interfaces self-test (done after every
transmission) is failing.
If no servers respond to the Boot ROM's attempts to initiate a boot session then the user will
see no other indication of
LA~
activity.
LAN Boot Error Messages
LAN error messages will show at the lower left of the display and consist of an error name
followed by the same identification string shown above the list of system names.
Table 5-9. LAN Boot Error Messages
Error Message
Meaning
SYSTEM NOT FOUND
The server could not open the selected file, or the file was of the wrong type.
No Server
The server did not respond to a boot request.
Not Ready
LAN hardware powerup or reset failed.
Read Error The open operation worked but the server has since then failed to respond to a
read request or the server sent end of file.
The server failed to respond to a read request or the server sent eof.
Bad Hardware
The LAN hardware failed to respond to some operation or reported a catastrophic
error.
Bad State
Damaged Boot ROM code
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Trou bleshooting