HP Dx5150 HP Business Desktop dx5150 Series Service Reference Guide, 1st Editi - Page 140
POST Numeric Codes and Text Messages
UPC - 882780485433
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POST Error Messages POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. ✎ The computer will beep once after a POST text message is displayed on the screen. Numeric Codes and Text Messages Code/Message Probable Cause BIOS ROM checksum error-System halted The checksum of the BIOS code in the BIOS chip is incorrect, indicating that the BIOS code may have become corrupt. CMOS battery failed CMOS checksum error-Defaults loaded CPU at nnnn Press ESC to skip memory test HARD DISK INSTALL FAILURE The CMOS battery is no longer functional. Checksum of CMOS is incorrect, so the system loads the default equipment configuration. A checksum error may indicate that CMOS has become corrupt. A weak battery may have caused this error. Displays the running speed of the CPU. Cannot find or initialize the hard drive controller or the drive. Keyboard error or no Cannot initialize the keyboard present keyboard. Memory Test: This message displays during a full memory test, counting down the memory areas being tested. Recommended Action Verify the correct ROM. Flash the ROM is needed. If an expansion card was recently added, remove it and see if the problem remains. Clear CMOS. If the message disappears, there may be a problem with the expansion card. Replace the system board. Replace the RTC battery. Check the battery and replace, if necessary. None. The user may press ESC to skip the full memory test. Make sure the controller is installed correctly in the BIOS. If no hard drives are installed, be sure the Hard Drive selection in Setup is set to NONE. Make sure the keyboard is attached correctly and no keys are pressed during POST. To purposely configure the system without a keyboard, set the error halt condition in Setup to HALT ON ALL, BUT KEYBOARD. The BIOS then ignores the missing keyboard during POST. None. C-2 361685-001 Service Reference Guide, dx5150