User Guide CCM-BOOGIE • High Performance Core
TM
2 Duo 3U
CompactPCI
®
CPU Board
© EKF -27- ekf.com
PG (Power Good) LED
The CCM-BOOGIE offers a LED labelled PG located within the front panel. After system reset, this LED
defaults to signal different board states:
C
Off
Sleep state S3, S4 or S5
C
Red steady
Hardware failure
C
Red blink
Software failure
C
Yellow
Management state S3/M1, S4/M1 or S5/M1
C
Yellow blink Front panel handle is unlocked
1)
C
Green
Healthy
1)
This feature is available from board revision 1.02.2x forward.
In the states
Off
or
Yellow
the LEDs GP and HD decode the kind of sleep state as follows:
State
Description
LED GP LED HD
S3
Suspend to RAM
OFF
ON
S4
Suspend to Disk
ON
OFF
S5
Soft Off
ON
ON
To enter the PG LED state
Software failure
an appropriate service request by software SMI must be
called. The PG LED remains in this red blinking state until the next SMI request is made. After that it
falls back to its default function.
HD (Hard Disk Activity) LED
The CCM-BOOGIE offers a LED marked as HD placed within the front panel. This LED signals activity
on any device attached to the SATA ports. As described above this LED may change its function
dependent on the state of the LED PG.
GP (General Purpose) LED
Another more programmable bicoloured LED can be observed from the front panel. The status of the
red part within the GP LED is controlled by the GPO18 output of the ICH9. Setting this pin to "1" will
switch on the red LED. To turn on or off the green LED an appropriate service request (software SMI)
must be made.
While the CPU card is controlled by the BIOS firmware, the GP LED is used to signal board status
information. A red blinking GP LED is an indication that the BIOS code couldn't start. For details please
refer to
www.ekf.com/c/ccpu/ccm/firmware/biosinfo.txt
.
After successful operating system boot, the GP LED is not dedicated to any particular hardware or
firmware function with exception of special states of the LED PG as described above. Hence it may be
freely used by customer software.
