Product Guide
Page 63
... The BIOS also issues a beep code (one long tone followed by two short tones) during the POST, the BIOS displays an error message describing the problem. The firmware has detected that the system memory has decreased. The firmware has detected that a Multi-Bit ECC Error occurred. Table 14 lists the BIOS...
... The BIOS also issues a beep code (one long tone followed by two short tones) during the POST, the BIOS displays an error message describing the problem. The firmware has detected that the system memory has decreased. The firmware has detected that a Multi-Bit ECC Error occurred. Table 14 lists the BIOS...