Xbox 360:Error Codes: Difference between revisions

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Board is unresponsive to power button
Board is unresponsive to power button


* [https://repair.wiki/w/Xbox_360_No_Power Detailed Diagnostic/Repair Actions]
* [https://xenonlibrary.com/wiki/Repair_Actions/No_Power Detailed Diagnostic/Repair Actions]


== Red Ring of Death ==
== Red Ring of Death ==
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|-
|-
| '''0001''' || ERROR_V_12P0 || ANA_V12P0_PWRGD negated unexpectedly || Replace Power Supply, Check V_12P0 rail components
| '''0001''' || ERROR_V_12P0 || ANA_V12P0_PWRGD negated unexpectedly || Replace Power Supply, Check V_12P0 rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0001 Detailed Diagnostic/Repair Actions]
|-
|-
| '''0002''' || ERROR_V_CPUCORE || VREG_CPU_PWRGD negated unexpectedly || Replace Power Supply, Check V_CPUCORE rail components
| '''0002''' || ERROR_V_CPUCORE || VREG_CPU_PWRGD negated unexpectedly || Replace Power Supply, Check V_CPUCORE rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0002 Detailed Diagnostic/Repair Actions]
|-
|-
| '''0003<br><small>Phat</small>''' || ERROR_V_GPUCORE || VREG_GPU_PWRGD negated unexpectedly || Replace Power Supply, Check V_GPUCORE rail components
| '''0003<br><small>Phat</small>''' || ERROR_V_GPUCORE || VREG_GPU_PWRGD negated unexpectedly || Replace Power Supply, Check V_GPUCORE rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0003 Detailed Diagnostic/Repair Actions]
|-
|-
| '''0003<br><small>Slim</small>''' || ERROR_V_3P3 || VREG_V3P3_PWRGD negated unexpectedly || Replace Power Supply, Check V_3P3 rail components
| '''0003<br><small>Slim</small>''' || ERROR_V_3P3 || VREG_V3P3_PWRGD negated unexpectedly || Replace Power Supply, Check V_3P3 rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0001 Detailed Diagnostic/Repair Actions]
|-
|-
| '''0010''' || ERROR_NO_HANA/ERROR_NO_ANA || HANA/ANA is not responding to reads or writes || Replace HANA/ANA or Southbridge
| '''0010''' || ERROR_NO_HANA/ERROR_NO_ANA || HANA/ANA is not responding to reads or writes || Replace HANA/ANA or Southbridge
|-
|-
| '''0011''' || ERROR_THERMAL_CPU || CPU temperature overload || [https://repair.wiki/w/Xbox_360_Thermal Detailed Diagnostic/Repair Actions]
| '''0011''' || ERROR_THERMAL_CPU || CPU temperature overload || rowspan="3" | [https://xenonlibrary.com/wiki/Repair_Actions/Thermal Detailed Diagnostic/Repair Actions]
|-
|-
| '''0012''' || ERROR_THERMAL_GPU || GPU temperature overload || [https://repair.wiki/w/Xbox_360_Thermal Detailed Diagnostic/Repair Actions]
| '''0012''' || ERROR_THERMAL_GPU || GPU temperature overload  
|-
|-
| '''0013''' || ERROR_THERMAL_EDRAM || eDRAM temperature overload || [https://repair.wiki/w/Xbox_360_Thermal Detailed Diagnostic/Repair Actions]
| '''0013''' || ERROR_THERMAL_EDRAM || eDRAM temperature overload  
|-
|-
| '''0020''' || ERROR_GPU_RST_DONE || GPU_RST_DONE signal missing after seqUnReset time passed || Check GPU clock, RST, RST_DONE circuits, Replace GPU
| '''0020''' || ERROR_GPU_RST_DONE || GPU_RST_DONE signal missing after seqUnReset time passed || Check GPU clock, RST, RST_DONE circuits, Replace GPU
Line 59: Line 63:
|-
|-
| '''0031''' || ERROR_V_5P0 || VREG_V5P0_PWRGD negated unexpectedly || Replace Power Supply, Check V_5P0 rail components
| '''0031''' || ERROR_V_5P0 || VREG_V5P0_PWRGD negated unexpectedly || Replace Power Supply, Check V_5P0 rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0031 Detailed Diagnostic/Repair Actions]
|-
|-
| '''0032''' || ERROR_V_CPUVCS || VREG_CPUCORE_VCS_PWRGD negated unexpectedly || Replace Power Supply, Check V_CPUVCS rail components
| '''0032''' || ERROR_V_CPUVCS || VREG_CPUCORE_VCS_PWRGD negated unexpectedly || Replace Power Supply, Check V_CPUVCS rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0032 Detailed Diagnostic/Repair Actions]
|-
|-
| '''0033''' || ERROR_V_MEM || VREG_VMEM_PWRGD negated unexpectedly || Replace Power Supply, Check V_MEM rail components
| '''0033''' || ERROR_V_MEM || VREG_VMEM_PWRGD negated unexpectedly || Replace Power Supply, Check V_MEM rail components
[https://xenonlibrary.com/wiki/Repair_Actions/0033 Detailed Diagnostic/Repair Actions]
|}
|}


=== Xbox System Software (XSS) Errors ===
=== Xbox System Software (XSS) Errors ===
{| class="wikitable"
{| class="wikitable"
!Error Code
!Name
!Explanation
!Possible Repair Actions
|-
|-
! Error Code !! Name !! Explanation !! Possible Repair Actions
| '''0100'''|| ERROR_NBINIT_MEM_VENDOR_ID || RAM Vendor ID wrong, or not detected || rowspan="6" | Replace GPU or RAM
|-
|-
| '''0100<br>E 16'''|| ERROR_NBINIT_MEM_VENDOR_ID || RAM Vendor ID wrong, or not detected || Replace GPU or RAM
| '''0101'''|| ERROR_NBINIT_MEM_READ_STROBE_DATA_WRITE || Could not write data for RAM read strobe training
|-
|-
| '''0101<br>E 17'''|| ERROR_NBINIT_MEM_READ_STROBE_DATA_WRITE || Could not write data for RAM read strobe training || Replace GPU or RAM
| '''0102''' || ERROR_NBINIT_MEM_READ_STROBE_DELAY_TRAINING || Memory read strobe delay training failed
|-
|-
| '''0102<br>E 18''' || ERROR_NBINIT_MEM_READ_STROBE_DELAY_TRAINING || Memory read strobe delay training failed || Replace GPU or RAM
| '''0103''' || ERROR_NBINIT_MEM_WRITE_STROBE_DELAY_TRAINING|| Memory write strobe delay training failed  
|-
|-
| '''0103<br>E 19''' || ERROR_NBINIT_MEM_WRITE_STROBE_DELAY_TRAINING|| Memory write strobe delay training failed || Replace GPU or RAM
| '''0110''' || ERROR_MEMORY_ADDRESSING || Memory address line failed or unresponsive
|-
|-
| '''0110<br>E 20''' || ERROR_MEMORY_ADDRESSING || Memory address line failed or unresponsive || Replace GPU or RAM
| '''0111''' || ERROR_MEMORY_DATA || Memory data line failed or unresponsive  
|-
|-
| '''0111<br>E 21''' || ERROR_MEMORY_DATA || Memory data line failed or unresponsive || Replace GPU or RAM
|}
 
=== Xbox System Software (XSS) Errors with Universal Error Message (UEM) ===
{| class="wikitable"
|-
|-
| '''0300<br>E 48''' || ERROR_MFG_COMM_FAILURE || Unknown || Unknown
! Error Code !! Name !! Explanation !! Possible Repair Actions
|-
| '''0301<br>E 49''' || ERROR_MFG_UNABLE_TO_CONNECT || Unknown || Unknown
|-
| '''0302<br>E 50''' || ERROR_MFG_CONNECTX_FAILURE || Unknown || Unknown
|-
| '''0303<br>E 51''' || ERROR_MFG_GATEWAY_ERROR || Unknown || Unknown
|-
| '''0310<br>E 52''' || ERROR_MFG_BAD_RESPONSE_DATA || Unknown || Unknown
|-
| '''0311<br>E 53''' || ERROR_MFG_CHALLENGE_REFUSED || Unknown || Unknown
|-
| '''0312<br>E 54''' || ERROR_MFG_BAD_VAULT || Unknown || Unknown
|-
| '''0313''' || ERROR_XSS_MANUF_TEST || Manually triggered error code || Unknown
|-
|-
| '''1000<br>E 64''' || ERROR_XSS_CDROM_TIMED_OUT || Kernel DVD drive communications timed out || Replace SATA cable to DVD drive, replace DVD drive PCB, replace Southbridge
| '''1000<br>E 64''' || ERROR_XSS_CDROM_TIMED_OUT || Kernel DVD drive communications timed out || rowspan="3" | Replace SATA cable to DVD drive, replace DVD drive PCB, replace Southbridge
|-
|-
| '''1001<br>E 65''' || ERROR_XSS_CDROM_NOT_DMA_CONFIGURED || Kernel could not configure DVD drive for DMA mode || Replace SATA cable to DVD drive, replace DVD drive PCB, replace Southbridge
| '''1001<br>E 65''' || ERROR_XSS_CDROM_NOT_DMA_CONFIGURED || Kernel could not configure DVD drive for DMA mode  
|-
|-
| '''1002<br>E 66''' || ERROR_XSS_CDROM_COULD_NOT_CREATE_DEVICE || Kernel could not create DVD drive instance || Replace SATA cable to DVD drive, replace DVD drive PCB, replace Southbridge
| '''1002<br>E 66''' || ERROR_XSS_CDROM_COULD_NOT_CREATE_DEVICE || Kernel could not create DVD drive instance  
|-
|-
| '''1003<br>E 67''' || ERROR_XSS_HDD_TIMED_OUT || Kernel HDD communications timed out || Replace HDD, replace HDD port/cable, replace Southbridge
| '''1003<br>E 67''' || ERROR_XSS_HDD_TIMED_OUT || Kernel HDD communications timed out || rowspan="4" | Replace HDD, replace HDD port/cable, replace Southbridge
|-
|-
| '''1010<br>E 68''' || ERROR_XSS_HDD_NOT_DMA_CONFIGURED || Kernel could not configure HDD for DMA mode || Replace HDD, replace HDD port/cable, replace Southbridge
| '''1010<br>E 68''' || ERROR_XSS_HDD_NOT_DMA_CONFIGURED || Kernel could not configure HDD for DMA mode  
|-
|-
| '''1011<br>E 69''' || ERROR_XSS_HDD_COULD_NOT_CREATE_DEVICE || Kernel could not create HDD instance || Replace HDD, replace HDD port/cable, replace Southbridge
| '''1011<br>E 69''' || ERROR_XSS_HDD_COULD_NOT_CREATE_DEVICE || Kernel could not create HDD instance  
|-
|-
| '''1012<br>E 70''' || ERROR_XSS_HDD_NOT_FOUND || Kernel couldn't find HDD Note: This error does not show up because a HDD is missing, it shows up when a HDD is detected, but can't be found || Replace HDD, replace HDD port/cable, replace Southbridge
| '''1012<br>E 70''' || ERROR_XSS_HDD_NOT_FOUND || Kernel couldn't find HDD Note: This error does not show up because a HDD is missing, it shows up when a HDD is detected, but can't be found  
|-
|-
| '''1013<br>E 71''' || ERROR_XSS_XAM_NO_DASH || XAM could not find dash.xex on flash || Unplug HDD, if error clears, format or replace HDD, else Rebuild and reflash NAND
| '''1013<br>E 71''' || ERROR_XSS_XAM_NO_DASH || XAM could not find dash.xex on flash || Unplug HDD, if error clears, format or replace HDD, else [[Xbox 360:NAND Recovery using a Donor NAND|Rebuild and reflash NAND]]
|-
|-
| '''1020<br>E 72''' || ERROR_SMC_FLASH_CONFIG_CORRUPT || SMC configuration corrupt || Rebuild and reflash NAND
| '''1020<br>E 72''' || ERROR_SMC_FLASH_CONFIG_CORRUPT || SMC configuration corrupt || Rebuild and reflash NAND


|-
|-
| '''1021<br>E 73''' || ERROR_HSIO_TRAINING_FAILED || GPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive || Replace GPU
| '''1021<br>E 73''' || ERROR_HSIO_TRAINING_FAILED || GPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive || rowspan="2" | Replace GPU
[https://xenonlibrary.com/wiki/Repair_Actions/HSIO Detailed Diagnostic/Repair Actions]
|-
|-
| '''1022<br>E 74''' || ERROR_HSIO_CALIBRATION_FAILED || GPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive || Replace GPU
| '''1022<br>E 74''' || ERROR_HSIO_CALIBRATION_FAILED || GPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive  
|-
|-
| '''1023<br>E 75''' || ERROR_UNEXPECTED_ETHERNET_PHY_VENDOR || Southbridge could not communicate with Ethernet PHY over MDIO/MDC || Replace Ethernet chip, replace Southbridge
| '''1023<br>E 75''' || ERROR_UNEXPECTED_ETHERNET_PHY_VENDOR || Southbridge could not communicate with Ethernet PHY over MDIO/MDC || Replace Ethernet chip, replace Southbridge
|-
|-
| '''1030<br>E 76''' || ERROR_ETHERNET_PHY_RESET_FAIL || Ethernet PHY failed to reset correctly or complete reset || Replace Ethernet chip
| '''1030<br>E 76''' || ERROR_ETHERNET_PHY_RESET_FAIL || Ethernet PHY failed to reset correctly or complete reset || rowspan="2" | Replace Ethernet chip
|-
|-
| '''1031<br>E 77''' || ERROR_ETHERNET_PHY_READ_WRITE_FAIL || Could not read or write to Ethernet PHY || Replace Ethernet chip
| '''1031<br>E 77''' || ERROR_ETHERNET_PHY_READ_WRITE_FAIL || Could not read or write to Ethernet PHY  
|-
|-
| '''1032<br>E 78''' || ERROR_UNSUPPORTED_GPU || GPU is down revision, not supported on this board || Replace GPU with correct revision for board
| '''1032<br>E 78''' || ERROR_UNSUPPORTED_GPU || GPU is down revision, not supported on this board || Replace GPU with correct revision for board
|-
|-
| '''1033<br>E 79''' || ERROR_XSS_FLASH_NO_XAM || xam.xex not found on flash || Unplug HDD, if error clears, format or replace HDD, else Rebuild and reflash NAND
| '''1033<br>E 79''' || ERROR_XSS_FLASH_NO_XAM || xam.xex not found on flash || Unplug HDD, if error clears, format or replace HDD, else [[Xbox 360:NAND Recovery using a Donor NAND|Rebuild and reflash NAND]]
|-
|-
| '''1100<br>E 80''' || Unknown || Unknown || Unknown
| '''1100<br>E 80''' || Unknown || Mismatched LDV Version in the NAND Flash. Note: Last dashboard update probably failed. Related to eFuses. || If you are on an unmodded console and you removed your R6T3 (Phat)/ R4R1 (Trinity)/ R4P9 (Corona, Waitsburg, Trinity) resistor to disable eFuse Burning and you are on dashboard 12611 then you can solder a 10k ohm resistor where the old resistor was.
|-
|-
| '''1101<br>E 81''' || Unknown || XeKeysSecuritySaveSettings failed || Replace NAND
| '''1101<br>E 81''' || Unknown || XeKeysSecuritySaveSettings failed || Replace NAND
|-
|-
| '''1102<br>E 82''' || ERROR_HSIO_CALIBRATION_FAILED || CGPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive || Replace CGPU
| '''1102<br>E 82''' || ERROR_HSIO_CALIBRATION_FAILED || CGPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive || Replace CGPU
[https://xenonlibrary.com/wiki/Repair_Actions/HSIO Detailed Diagnostic/Repair Actions]
|}
|}


==References==
==References==


* [https://repair.wiki/w/Xbox_360 Octal's Error Database on the Repair Wiki] (from leaked documentation and reverse engineering)
* [https://xenonlibrary.com/wiki/Errors XenonLibrary Wikipage for Xbox 360 Errors] (info from leaked documentation and reverse engineering)

Latest revision as of 06:51, 5 April 2024

Exclamation-triangle-fill.svgDo not ever put your console in the freezer or out in the cold/hot weather or wrap it in a towel. These "fixes" will cause bigger problems due to temperature shock, board warping, and condensation.


This page is intended to be a comprehensive list of all error codes for all models of Xbox 360, as well as tutorials on fixing them if applicable/possible. This error code guide is in no way official and may not be 100% accurate as it is community sourced. We take no responsibility for any actions you may take to fix your console.

Generally, if there is a problem with the Xbox 360, the LEDs in the Ring of Light (ROL) around the power button will flash in a particular pattern. The pattern itself lends some insight to the problem. Certain patterns will also display numbered error codes on screen, known as your primary error code, which will further help diagnose your console’s issue.

No Power

Board is unresponsive to power button

Red Ring of Death

Ring of light quadrants flashing red/center light red

  • To diagnose, hold down the sync button and press eject 4 times
  • Each time you press eject, a certain number of the quadrants of the ring will flash
    • 4 lights signify 0
    • 1 lights signify 1
    • 2 lights signify 2
    • 3 lights signify 3
    • On Xbox 360 E consoles, the ring will flash an amount of times then pause, count these to get the numbers
  • After pressing it 4 times, you will have the secondary error code
  • Example: seeing 4 lights 3 times, followed by 1 light once, means you have error code: 0001

System Management Controller (SMC) Errors

Error Code Name Explanation Possible Repair Actions
0001 ERROR_V_12P0 ANA_V12P0_PWRGD negated unexpectedly Replace Power Supply, Check V_12P0 rail components

Detailed Diagnostic/Repair Actions

0002 ERROR_V_CPUCORE VREG_CPU_PWRGD negated unexpectedly Replace Power Supply, Check V_CPUCORE rail components

Detailed Diagnostic/Repair Actions

0003
Phat
ERROR_V_GPUCORE VREG_GPU_PWRGD negated unexpectedly Replace Power Supply, Check V_GPUCORE rail components

Detailed Diagnostic/Repair Actions

0003
Slim
ERROR_V_3P3 VREG_V3P3_PWRGD negated unexpectedly Replace Power Supply, Check V_3P3 rail components

Detailed Diagnostic/Repair Actions

0010 ERROR_NO_HANA/ERROR_NO_ANA HANA/ANA is not responding to reads or writes Replace HANA/ANA or Southbridge
0011 ERROR_THERMAL_CPU CPU temperature overload Detailed Diagnostic/Repair Actions
0012 ERROR_THERMAL_GPU GPU temperature overload
0013 ERROR_THERMAL_EDRAM eDRAM temperature overload
0020 ERROR_GPU_RST_DONE GPU_RST_DONE signal missing after seqUnReset time passed Check GPU clock, RST, RST_DONE circuits, Replace GPU
0021 ERROR_NO_PCIE PCIE link did not enter L0 after seqUnReset time passed Check PCIe and PCIe clock circuits, Replace GPU or Southbridge
0022 ERROR_NO_HANDSHAKE CPU did not send GetPowerUpCause to SMC Check POST code, Check CPU clock, RST, and PLL circuits, Replace CPU
0023
Phat
ERROR_NO_CLOCKCHIP Clockgen is not responding to reads or writes Replace ANA_BCKUP (Xenon), ANA/HANA, or Southbridge
0023
Slim
ERROR_V_CPUEDRAM VREG_VEDRAM_PWRGD negated unexpectedly Replace Power Supply, Check V_CPUEDRAM rail components
0030 ERROR_NO_TEMPERATURES HANA/ANA temperature registers read as zero Check for shorted resistors, replace HANA/ANA
0031 ERROR_V_5P0 VREG_V5P0_PWRGD negated unexpectedly Replace Power Supply, Check V_5P0 rail components

Detailed Diagnostic/Repair Actions

0032 ERROR_V_CPUVCS VREG_CPUCORE_VCS_PWRGD negated unexpectedly Replace Power Supply, Check V_CPUVCS rail components

Detailed Diagnostic/Repair Actions

0033 ERROR_V_MEM VREG_VMEM_PWRGD negated unexpectedly Replace Power Supply, Check V_MEM rail components

Detailed Diagnostic/Repair Actions

Xbox System Software (XSS) Errors

Error Code Name Explanation Possible Repair Actions
0100 ERROR_NBINIT_MEM_VENDOR_ID RAM Vendor ID wrong, or not detected Replace GPU or RAM
0101 ERROR_NBINIT_MEM_READ_STROBE_DATA_WRITE Could not write data for RAM read strobe training
0102 ERROR_NBINIT_MEM_READ_STROBE_DELAY_TRAINING Memory read strobe delay training failed
0103 ERROR_NBINIT_MEM_WRITE_STROBE_DELAY_TRAINING Memory write strobe delay training failed
0110 ERROR_MEMORY_ADDRESSING Memory address line failed or unresponsive
0111 ERROR_MEMORY_DATA Memory data line failed or unresponsive

Xbox System Software (XSS) Errors with Universal Error Message (UEM)

Error Code Name Explanation Possible Repair Actions
1000
E 64
ERROR_XSS_CDROM_TIMED_OUT Kernel DVD drive communications timed out Replace SATA cable to DVD drive, replace DVD drive PCB, replace Southbridge
1001
E 65
ERROR_XSS_CDROM_NOT_DMA_CONFIGURED Kernel could not configure DVD drive for DMA mode
1002
E 66
ERROR_XSS_CDROM_COULD_NOT_CREATE_DEVICE Kernel could not create DVD drive instance
1003
E 67
ERROR_XSS_HDD_TIMED_OUT Kernel HDD communications timed out Replace HDD, replace HDD port/cable, replace Southbridge
1010
E 68
ERROR_XSS_HDD_NOT_DMA_CONFIGURED Kernel could not configure HDD for DMA mode
1011
E 69
ERROR_XSS_HDD_COULD_NOT_CREATE_DEVICE Kernel could not create HDD instance
1012
E 70
ERROR_XSS_HDD_NOT_FOUND Kernel couldn't find HDD Note: This error does not show up because a HDD is missing, it shows up when a HDD is detected, but can't be found
1013
E 71
ERROR_XSS_XAM_NO_DASH XAM could not find dash.xex on flash Unplug HDD, if error clears, format or replace HDD, else Rebuild and reflash NAND
1020
E 72
ERROR_SMC_FLASH_CONFIG_CORRUPT SMC configuration corrupt Rebuild and reflash NAND
1021
E 73
ERROR_HSIO_TRAINING_FAILED GPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive Replace GPU

Detailed Diagnostic/Repair Actions

1022
E 74
ERROR_HSIO_CALIBRATION_FAILED GPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive
1023
E 75
ERROR_UNEXPECTED_ETHERNET_PHY_VENDOR Southbridge could not communicate with Ethernet PHY over MDIO/MDC Replace Ethernet chip, replace Southbridge
1030
E 76
ERROR_ETHERNET_PHY_RESET_FAIL Ethernet PHY failed to reset correctly or complete reset Replace Ethernet chip
1031
E 77
ERROR_ETHERNET_PHY_READ_WRITE_FAIL Could not read or write to Ethernet PHY
1032
E 78
ERROR_UNSUPPORTED_GPU GPU is down revision, not supported on this board Replace GPU with correct revision for board
1033
E 79
ERROR_XSS_FLASH_NO_XAM xam.xex not found on flash Unplug HDD, if error clears, format or replace HDD, else Rebuild and reflash NAND
1100
E 80
Unknown Mismatched LDV Version in the NAND Flash. Note: Last dashboard update probably failed. Related to eFuses. If you are on an unmodded console and you removed your R6T3 (Phat)/ R4R1 (Trinity)/ R4P9 (Corona, Waitsburg, Trinity) resistor to disable eFuse Burning and you are on dashboard 12611 then you can solder a 10k ohm resistor where the old resistor was.
1101
E 81
Unknown XeKeysSecuritySaveSettings failed Replace NAND
1102
E 82
ERROR_HSIO_CALIBRATION_FAILED CGPU to eDRAM High Speed Link failed, eDRAM faulty or unresponsive Replace CGPU

Detailed Diagnostic/Repair Actions

References