Intel D2550DC2 Technical product specification - Page 70
Front-panel Power LED Blink Codes, 4.3 BIOS Error Messages, Table 33.
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Intel Desktop Board D2550DC2 Technical Product Specification 4.2 Front-panel Power LED Blink Codes Whenever a recoverable error occurs during POST, the BIOS causes the board's front panel power LED to blink an error message describing the problem (see Table 33). Table 33. Front-panel Power LED Blink Codes Type Pattern BIOS update in progress Video error (Note) Off when the update begins, then on for 0.5 seconds, then off for 0.5 seconds. The pattern repeats until the BIOS update is complete. On-off (1.0 second each) two times, then 2.5-second pause (off), entire pattern repeats (blink and pause) until the system is powered off. Memory error On-off (1.0 second each) three times, then 2.5-second pause (off), entire pattern repeats (blinks and pause) until the system is powered off. Thermal trip warning Each beep will be accompanied by the following blink pattern: .25 seconds on, .25 seconds off, .25 seconds on, .25 seconds off. This will result in a total of 16 blinks. Note: Disabled per default BIOS setup option. Note When no VGA option ROM is found. 4.3 BIOS Error Messages Whenever a recoverable error occurs during POST, the BIOS displays an error message describing the problem. Table 34 lists the error messages and provides a brief description of each. Table 34. BIOS Error Messages Error Message Explanation CMOS Battery Low CMOS Checksum Bad Memory Size Decreased No Boot Device Available The battery may be losing power. Replace the battery soon. The CMOS checksum is incorrect. CMOS memory may have been corrupted. Run Setup to reset values. Memory size has decreased since the last boot. If no memory was removed, then memory may be bad. System did not find a device to boot. 70