Brand: MITSUBISHI ELECTRIC
Category: Computer
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for FT//ex
Uploaded: Nov. 21, 2025, 8:46 p.m.
Manual Publish Date: 1993-01-01
- Getting Started: Includes selecting a site, unpacking, and positioning the system.
- System Housing: Details front and rear panel features, connecting components like keyboard, mouse, and monitor.
- System Board: Covers major components, upgrading memory (SIMMs), and CPU upgrades.
- Configuration: Instructions on using BIOS SETUP and EISA Configuration Utility for system setup and options.
- Troubleshooting: Guidance on dealing with operating problems and error messages.
Troubleshooting and error codes
| System Error Messages | ||
| Condition | Meaning | Action |
| Error 1-5, 7-10, 12-17, 22-25, 27-30, 32, 33, 36, 37, 39, 41-44, 46-49, 51, 52, 54-57, 59-61, 63-68, 70, 71, 73-79, 81, 83, 84, 86, 87, 90, 92, 94-98, 101, 103-110, 113, 115, 117, 119, 121-124, 126-129, 131-133, 135-138, 140-148, 150-163, 165-173, 175-192, 194-203, 205-226, 228-247, 249-256 | Error occurred in system memory | Reinstall the memory modules. If the error persists, replace the memory modules. If the error occurs on a different memory module, replace the system board. |
| Error 19, 20, 21, 31, 34, 35, 38, 40, 50, 53, 58, 62, 69, 72, 80, 82, 85, 88, 89, 90, 91, 93, 99, 100, 102, 111, 112, 114, 116, 118, 120, 125, 130, 134, 139, 149, 164, 174, 193, 204, 227, 248 | Error occurred in ROM | Replace the ROM chip or system board. |
| Error 45, 99, 100, 102, 139, 149, 164, 174, 193, 204, 227, 248 | Error occurred in 8042 chip | Replace the system board. |
| Error 193-199 | Error occurred in CPU | Replace the CPU chip or system board. |
| Error 200-203 | Error occurred in Cache | Replace the Cache chip or system board. |
| Error 205-226 | Error occurred in I/O Channel | Replace the system board. |
| Error 228-247 | Error occurred in Drive | Check the drive installation and connection. Replace the drive if necessary. |
| Error 249-256 | Error occurred in Math Coprocessor | Replace the Math Coprocessor chip or system board. |