DOCUMENT:Q99415 17-DEC-2000 [msdos] TITLE :Hard Disk Controller BIOS Error Codes PRODUCT :Microsoft Disk Operating System PROD/VER:MS-DOS:2.x,3.x,4.x,5.x,6.0,6.2,6.21,6.22 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft MS-DOS operating system versions 2.11, 3.1, 3.2, 3.21, 3.3, 3.3a, 4.0, 4.01, 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 ------------------------------------------------------------------------------- SUMMARY ======= This article lists the error messages you may receive if you have a hardware failure on the hard disk, the hard disk controller, or both. The errors listed below normally occur during a low-level format but may also occur anytime after the low-level format is done (for example, when you are installing MS-DOS, Windows, or other software). MORE INFORMATION ================ Code Description ------------------------------------------------ 00H No Error 01H Bad Command 02H Address Mark Not Found 03H Write Protect 04H Request Sector Not Found 05H Reset Failed 06H Media Change 07H Initialization Failed 09H Cross 64K DMA Boundary 0AH Bad Sector Flag Detected 0BH Bad Track Flag Detected 10H Bad ECC on Disk Read 11H ECC Corrected Data Error 20H Controller Has Failed 40H Seek Operation Failed 80H Drive Failed to Respond AAH Drive Not Ready BBH Undefined Error CCH Write Fault 0EH Register Error FFH Sense Operation Failed Additional query words: 6.22 2.0 3.0 3.00 3.10 3.1 3.3 3.30 3.3a 3.30a 4.0 4.00 4.01 4.01a 5.00 5.0 5.00a 5.0a 6 6.00 6.0 6.20 msdos ms dos hard drive errors failures lowlevel low level format ====================================================================== Keywords : Technology : kbMSDOSSearch kbMSDOS321 kbMSDOS400 kbMSDOS320 kbMSDOS330a kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS310 kbMSDOS500 kbMSDOS330 kbMSDOS401 kbMSDOS500a kbMSDOS211 Version : MS-DOS:2.x,3.x,4.x,5.x,6.0,6.2,6.21,6.22 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.