CP6000
Functional Description
ID 27942, Rev. 05
© 2005 Kontron Modular Computers GmbH
Page 2 - 11
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2.05.UG.VC.051020/17275
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P R E L I M I N A R Y
2.3
Board Interfaces
2.3.1
Front Panel LEDs
The CP6000 is equipped with two LEDs for IPMI, two LEDs for watchdog and overtemperature,
eight LEDs for general purpose or POST code (four LEDs for Front-I and four LEDs for
Front-II), and one LED for hot swap. Their functionality is described in the following chapters.
2.3.1.1
IPMI LEDs
These two LEDs show the software status of the IPMI controller.
2.3.1.2
Watchdog and Overtemperature LEDs
The CP6000 provides two front LEDs for Overtemperature and Watchdog status. Additionally,
if the TH LED remains on during bootup, it indicates a PCI reset is active, and if the WD LED
remains on during bootup, it indicates a power failure. In this case, check the power supply. If
the power supply appears to be functional and this LED remains on, contact Kontron Modular
Computers’ Technical Support.
2.3.1.3
Front-I and Front-II General Purpose LEDs
These are two sets of General Purpose LEDs available on the front panel of the CP6000 which
are designed to indicate the boot-up POST code if required or are available to the application
as general purpose LEDs. To indicate POST code, J22 must be set. For general purpose use,
J22 must not be set. Together Front-I and Front-II indicate a two-place hexadecimal number.
Front-II is the lower nibble, Front-I is the higher nibble. An one is indicated by a lit LED. The
LSB is 0, the MSB is 7. Default setting is general purpose and all LEDs not lit.
2.3.1.4
Hot Swap LED
On the CP6000, a blue HS LED can be switched on or off by software. It may be used, for ex-
ample, to indicate that the shutdown process is finished and the board is ready for extraction.
It may also be used for general purposes.
Note ...
If the overtemperature LED flashes on and off at regular intervals, it indicates
that the processor junction temperature has reached a level beyond which per-
manent silicon damage may occur. Upon assertion of Thermtrip, the processor
will shut off its internal clocks (thus halting program execution) in an attempt to
reduce the processor junction temperature.
Once activated, Thermtrip remains latched until a cold restart of the CP6000 is
undertaken (all power off and then on again).
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