HP Pro 4300 Maintenance & Service Guide HP Compaq Pro 4300 All-in-One Busi - Page 122
POST Numeric Codes and Text Messages
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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. NOTE: The computer will beep once after a POST text message is displayed on the screen. Table 8-1 Numeric Codes and Text Messages Control panel message Description Recommended action ERROR: No boot disk has been detected or The computer cannot read the boot sector the disk has failed. of the boot disk. 1. Check drive data and power cables. 2. Use F10 Setup to make sure the first boot device is set to drive C or the primary hard drive. 3. The drive has failed due to mechanical or virus corruption. Replace the drive. Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. 5. Replace the system board. 511-CPU Fan not Detected CPU fan is not connected or may have malfunctioned. 1. Reseat CPU fan. 2. Reseat fan cable. 3. Replace CPU fan. 1720-SMART Hard Drive Detects Imminent Failure Hard drive is about to fail. (Some hard 1. drives have a hard drive firmware patch that will fix an erroneous error message.) Determine if hard drive is giving correct error message. Enter Computer Setup and run the Drive Protection System test under Storage > DPS Self-test. 2. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) 3. Back up contents and replace hard drive. Unsupported CPU Recently installed processor is not supported by the system. Install a processor supported by your system. Time & Date Not Set Invalid time or date in configuration memory. RTC (real-time clock) battery may need to be replaced. CMOS jumper may not be properly installed. Reset the date and time under Control Panel (Computer Setup can also be used). If the problem persists, replace the RTC battery. Check for proper placement of the CMOS jumper if applicable. 114 Chapter 8 POST Error Messages