Product Guide
Page 63
.... The firmware has detected that the system memory has decreased. The firmware has detected that a CMOS Checksum Error occurred. Table 15. A Error Messages and Indicators Intel Desktop Board DP43TF reports POST errors in Channel B. Table 16 gives an explanation of memory installed in each channel. 63 The system chassis was previously shutdown due to... 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. Maximum memory performance is required for reliable operation.
.... The firmware has detected that the system memory has decreased. The firmware has detected that a CMOS Checksum Error occurred. Table 15. A Error Messages and Indicators Intel Desktop Board DP43TF reports POST errors in Channel B. Table 16 gives an explanation of memory installed in each channel. 63 The system chassis was previously shutdown due to... 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. Maximum memory performance is required for reliable operation.