Miscellaneous Indicators; Reset Led; Post Led - RadiSys PROCELERANT CE915GMA Product Manual

Miscellaneous indicators

Reset LED

POST LED

On-1: Start boot block
On-2: Initialize SMM, SMRAM and
SMI mode (POST code: 69h)
On-3: Initialize the POST display
device
(POST code: 59h)
On-4: Configure ACPI tables for
OS use (POST code: B7h)
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The new reset LED and POST LED are available on the top side of CE915GM modules. For
locations of these LEDs, see
The reset LED indicates the system reset status. This LED is illuminated during system
reset.
The POST LED indicates the BIOS running status during system boot. The LED monitors the
POST progress to help you analyze boot failures when no POST80 card is attached to your
carrier board.
The POST LED turns on and off four times during boot up, as shown in
the BIOS fail at any of these stages, the system may hang before loading the operating
system. Upon successful completion of these stages, the operating system will load.
Figure 10. BIOS running status indicated by POST LED
POST LED on
Figure 2 on page 11.
Off-1: Init PCI Express device
(POST code: DAh)
Off-2: Configure USB devices
(POST code: 55h)
Off-3: Configure non-PC-compatible
Plug and Play ISA devices, PCI IRQs,
enable PCI devices and ROM-scan
(POST code: 98h)
Off-4: Boot to OS via Int19
(POST code: C0h)
POST LED off
Miscellaneous indicators
Figure 10 Should
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