Hardware Maintenance Manual
Page 36
If you want to restart the system. In hibernation mode, the following occurs: v The system status, RAM, VRAM, and setup data are using the APM operating system and have to use hibernation mode, you are stored on the resume timer elapses. v If ... to use hibernation mode, you are using OS/2 in either of the following events: v The ring indicator (RI) is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
If you want to restart the system. In hibernation mode, the following occurs: v The system status, RAM, VRAM, and setup data are using the APM operating system and have to use hibernation mode, you are stored on the resume timer elapses. v If ... to use hibernation mode, you are using OS/2 in either of the following events: v The ring indicator (RI) is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 48
... or 256 MB DIMM card (maximum of 512 MB) CMOS RAM Display T23 v 64 MB, 128 MB, 256 MB, or 512 MB DIMM card (maximum of 1024 MB) 242 bytes T20 v 13.3-inch, 16M colors, XGA (1024×768 resolution) TFT ...color LCD v 14.1-inch, 16M colors, XGA (1024×768 resolution) TFT color LCD T21, T22, T23 v 13.3-inch, 16M colors, XGA (1024×768 resolution) TFT color LCD v 14.1-inch, 16M colors, XGA (1024×... bus (USB) connector for T20, T21, and T22 series v Two USB connectors for T23 v RJ11 v RJ45 (covered) v TV-out (continued) 42 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
... or 256 MB DIMM card (maximum of 512 MB) CMOS RAM Display T23 v 64 MB, 128 MB, 256 MB, or 512 MB DIMM card (maximum of 1024 MB) 242 bytes T20 v 13.3-inch, 16M colors, XGA (1024×768 resolution) TFT ...color LCD v 14.1-inch, 16M colors, XGA (1024×768 resolution) TFT color LCD T21, T22, T23 v 13.3-inch, 16M colors, XGA (1024×768 resolution) TFT color LCD v 14.1-inch, 16M colors, XGA (1024×... bus (USB) connector for T20, T21, and T22 series v Two USB connectors for T23 v RJ11 v RJ45 (covered) v TV-out (continued) 42 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 56
...Press to ignore the warning message. 2. System board. 0231 System RAM error-System RAM fails at offset nnnn. Enter IBM BIOS Setup Utility by entering supervisor password, and select "Password" --> "IBM Security Chip" --> "Clear IBM Security Chip" to clear this error. 2. System board. 0200 ...device that you installed; Reseat the hard-disk drive. 2. Hard-disk drive. 4. Security chip. 3. System board. 50 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Security chip. 3. System board. 021x Keyboard error Run interactive tests of the keyboard and the auxiliary input device. 0220...
...Press to ignore the warning message. 2. System board. 0231 System RAM error-System RAM fails at offset nnnn. Enter IBM BIOS Setup Utility by entering supervisor password, and select "Password" --> "IBM Security Chip" --> "Clear IBM Security Chip" to clear this error. 2. System board. 0200 ...device that you installed; Reseat the hard-disk drive. 2. Hard-disk drive. 4. Security chip. 3. System board. 50 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Security chip. 3. System board. 021x Keyboard error Run interactive tests of the keyboard and the auxiliary input device. 0220...
Hardware Maintenance Manual
Page 57
... Setup Utility to reset the time and date. 2. Run IBM BIOS Setup Utility to -FRU index Symptom or error 0232 Extended RAM error-Extended RAM fails at offset nnnn. 0250 System battery error-System battery is dead. 0251 System CMOS checksum bad-Default configuration used. 0252 Password checksum...DMA test failed 02F6 Software NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in IBM BIOS Setup Utility. 2. System board. 1. ThinkPad T20, T21, T22 and T23 series 51 Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Reset the password by running...
... Setup Utility to reset the time and date. 2. Run IBM BIOS Setup Utility to -FRU index Symptom or error 0232 Extended RAM error-Extended RAM fails at offset nnnn. 0250 System battery error-System battery is dead. 0251 System CMOS checksum bad-Default configuration used. 0252 Password checksum...DMA test failed 02F6 Software NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in IBM BIOS Setup Utility. 2. System board. 1. ThinkPad T20, T21, T22 and T23 series 51 Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Reset the password by running...