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POST Error Messages - Numeric Codes and Text Messages

Control panel message Description Recommended action
101-Option ROM Checksum Error System ROM or expansion board option ROM checksum.
  1. Verify the correct ROM.
  2. Flash the ROM if needed.
  3. If an expansion board was recently added, remove it to see if the problem remains.
  4. Clear CMOS.
  5. If the message disappears, there may be a problem with the expansion card.
  6. Replace the system board.
103-System Board Failure DMA or timers.
  1. Clear CMOS.
  2. Remove expansion boards.
  3. Replace the system board.
110-Out of Memory Space for Option ROMs Recently added PCI expansion card contains an option ROM too large to download during POST.
  1. If a PCI expansion card was recently added, remove it to see if the problem remains.
  2. In Computer Setup, set Advanced  > Device Options  > NIC PXE Option ROM Download to DISABLE to prevent PXE option ROM for the internal NIC from being downloaded during POST to free more memory for an expansion card's option ROM. Internal PXE option ROM is used for booting from the NIC to a PXE server.
  3. Ensure the ACPI/USB Buffers @ Top of Memory setting in Computer Setup is enabled.
162-System Options Not Set Configuration incorrect.

Run Computer Setup and check the configuration in Advanced  > Onboard Devices .

163-Time & Date Not Set Invalid time or date in configuration memory.

Reset the date and time under Control Panel (Computer Setup can also be used). If the problem persists, replace the RTC battery. See the Hardware Reference Guide on the Documentation and Diagnostics CD for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.
163-Time & Date Not Set CMOS jumper may not be properly installed. Check for proper placement of the CMOS jumper if applicable.
164-MemorySize Error Memory amount has changed since the last boot (memory added or removed). Press the F1 key to save the memory changes.
164-MemorySize Error Memory configuration incorrect.
  1. Run Computer Setup or Windows utilities.
  2. Make sure the memory module(s) are installed properly.
  3. If third-party memory has been added, test using HP-only memory.
  4. Verify proper memory module type.
201-Memory Error RAM failure.
  1. Run Computer Setup or Windows utilities.
  2. Ensure memory modules are correctly installed.
  3. Verify proper memory module type.
  4. Remove and replace the identified faulty memory module(s).
  5. If the error persists after replacing memory modules, replace the system board.
213-Incompatible Memory Module in Memory Socket(s) X, X, ... A memory module in memory socket identified in the error message is missing critical SPD information, or is incompatible with the chipset.
  1. Verify proper memory module type.
  2. Try another memory socket.
  3. Replace DIMM with a module conforming to the SPD standard.
214-DIMM Configuration Warning Populated DIMM Configuration is not optimized. Rearrange the DIMMs so that each channel has the same amount of memory.
219-ECC Memory Module Detected ECC Modules not supported on this Platform Recently added memory module(s) support ECC memory error correction.
  1. If additional memory was recently added, remove it to see if the problem remains.
  2. Check product documentation for memory support information.
301-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.
303-Keyboard Controller Error I/O board keyboard controller.
  1. Reconnect keyboard with computer turned off.
  2. Replace the system board.
304-Keyboard or System Unit Error Keyboard failure.
  1. Reconnect the keyboard with computer turned off.
  2. Ensure that none of the keys are depressed.
  3. Replace the keyboard.
  4. Replace the system board.
404-Parallel Port Address Conflict Detected Both external and internal ports are assigned to parallel port X.
  1. Remove any parallel port expansion cards.
  2. Clear CMOS.
  3. Reconfigure card resources and/or run Computer Setup.
410-Audio Interrupt Conflict IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced  > Onboard Devices .
411-Network Interface Card Interrupt Conflict IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced  > Onboard Devices .
501-Display Adapter Failure Graphics display controller.
  1. Reseat the graphics card (if applicable).
  2. Clear CMOS.
  3. Verify monitor is attached and turned on.
  4. Replace the graphics card (if possible).
510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS image.
511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have malfunctioned.
  1. Reseat CPU fan.
  2. Reseat fan cable.
  3. Replace CPU fan.
512-Chassis, Rear Chassis, or Front Chassis Fan not Detected Chassis, rear chassis, or front chassis fan is not connected or may have malfunctioned.
  1. Reseat chassis, rear chassis, or front chassis fan.
  2. Reseat fan cable.
  3. Replace chassis, rear chassis, or front chassis fan.
514-CPU or Chassis Fan not Detected CPU or chassis fan is not connected or may have malfunctioned.
  1. Reseat CPU or chassis fan.
  2. Reseat fan cable.
  3. Replace CPU or chassis fan.
601-Diskette Controller Error Diskette controller circuitry or floppy drive circuitry incorrect.
  1. Run Computer Setup.
  2. Check and/or replace cables.
  3. Clear CMOS.
  4. Replace diskette drive.
  5. Replace the system board.
605-Diskette Drive Type Error Mismatch in drive type.
  1. Run Computer Setup.
  2. Disconnect any other diskette controller devices (tape drives).
  3. Clear CMOS.
610-External Storage Device Failure External tape drive not connected. Reinstall tape drive or press F1  and allow system to reconfigure without the drive.
611-Primary Floppy Port Address Assignment Conflict Configuration error. Run Computer Setup and check the configuration in Advanced  > Onboard Devices .
660-Display cache is detected unreliable Integrated graphics controller display cache is not working properly and will be disabled. Replace system board if minimal graphics degrading is an issue.
912-Computer Cover Has Been Removed Since Last System Startup Computer cover was removed since last system startup. No action required.
917-Front Audio Not Connected Front audio harness has been detached or unseated from motherboard. Reconnect or replace front audio harness.
918-Front USB Not Connected Front USB harness has been detached or unseated from motherboard. Reconnect or replace front USB harness.
921-Device in PCI Express slot failed to initialize There is an incompatibility/problem with this device and the system or PCI Express Link could not be retrained to an x1. Try rebooting the system. If the error reoccurs, the device may not work with this system
1151-Serial Port A Address Conflict Detected Both external and internal serial ports are assigned to COM1.
  1. Remove any serial port expansion cards.
  2. Clear CMOS.
  3. Reconfigure card resources and/or run Computer Setup or Windows utilities.
1152-Serial Port B Address Conflict Detected Both external and internal serial ports are assigned to COM2.
  1. Remove any serial port expansion cards.
  2. Clear CMOS.
  3. Reconfigure card resources and/or run Computer Setup or Windows utilities.
1155-Serial Port Address Conflict Detected Both external and internal serial ports are assigned to same IRQ.
  1. Remove any serial port expansion cards.
  2. Clear CMOS.
  3. Reconfigure card resources and/or run Computer Setup or Windows utilities.
1201-System Audio Address Conflict Detected Device IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced  > Onboard Devices .
1202-MIDI Port Address Conflict Detected Device IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced  > Onboard Devices .
1203-Game Port Address Conflict Detected Device IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced  > Onboard Devices .
1720-SMART Hard Drive Detects Imminent Failure Hard drive is about to fail. (Some hard drives have a hard drive firmware patch that will fix an erroneous error message.)
  1. 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.
1796-SATA Cabling Error One or more SATA devices are improperly attached. For optimal performance, the SATA 0 and SATA 1 connectors must be used before SATA 2 and SATA 3. Ensure SATA connectors are used in ascending order. For one device, use SATA 0. For two devices, use SATA 0 and SATA 1. For three devices, use SATA 0, SATA1, and SATA 2.
1797-SATA Drivelock is not supported in RAID mode. Drivelock is enabled on one or more SATA hard drives, and they cannot be accessed while the system is configured for RAID mode. Either remove the Drivelocked SATA device or disable the Drivelock feature. To disable the Drivelock feature, enter Computer Setup, change Storage  > Storage Options  > SATA Emulation to IDE , and select File  > Save Changes and Exit . Reenter Computer Setup and select Security  > Drivelock . For each listed Drivelock-capable SATA device, ensure Drivelock is Disabled . Lastly, change Storage  > Storage Options  > SATA Emulation back to RAID and select File  > Save Changes and Exit .
1801-Microcode Patch Error Processor is not supported by ROM BIOS.
  1. Upgrade BIOS to proper version.
  2. Change the processor.
2200-PMM Allocation Error during MEBx Download Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM
  1. Reboot the computer.
  2. Unplug the power cord, re-seat the memory modules, and reboot the computer.
  3. If the memory configuration was recently changed, unplug the computer, restore the original memory configuration, and reboot the computer.
  4. If the error persists, replace the system board.
2201-MEBx Module did not checksum correctly Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM
  1. Reboot the computer.
  2. Unplug the power cord, re-seat the memory modules, and reboot the computer.
  3. If the memory configuration was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer.
  4. If the error persists, replace the system board.
2202-PMM Deallocation Error during MEBx cleanup Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM
  1. Reboot the computer.
  2. Unplug the power cord, re-seat the memory modules, and reboot the computer.
  3. If the memory configuration was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer.
  4. If the error persists, replace the system board.
2203-Setup error during MEBx execution MEBx selection or exit resulted in a setup failure.
  1. Reboot the computer.
  2. Unplug the power cord, re-seat the memory modules, and reboot the computer.
  3. If the memory configuration was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer.
  4. If the error persists, replace the system board.
2204-Inventory error during MEBx execution BIOS information passed to the MEBx resulted in a failure.
  1. Reboot the computer.
  2. If the error persists, update to the latest BIOS version.
  3. If the error still persists, replace the system board.
2205-Interface error during MEBx execution MEBx operation experienced a hardware error during communication with ME.
  1. Reboot the computer.
  2. If the error persists, update to the latest BIOS version.
  3. If the error still persists, replace the system board.
Invalid Electronic Serial Number Electronic serial number has become corrupted.
  1. Run Computer Setup. If Setup already has data in the field or will not allow the serial number to be entered, download from http://www.hp.com and run SP5572.EXE (SNZERO.EXE).
  2. Run Computer Setup and try to enter serial number under Security, System ID, then save changes.
Network Server Mode Active and No Keyboard Attached Keyboard failure while Network Server Mode enabled.
  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.
Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic utilities.
System will not boot without fan CPU fan not installed or disconnected in VSFF chassis.
  1. Remove the computer cover, press the power button, and see if the processor fan spins. If the processor fan is not spinning, make sure the fan's cable is plugged onto the system board header. Ensure the heatsink is properly seated and installed.
  2. If the fan is plugged in and the heatsink is properly seated but the fan does not spin, then replace the heatsink-fan assembly.

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