Hardware Maintenance Manual
Page 36
Note: The computer does not accept any of the following occurs: v The system status, RAM, VRAM, and setup data are using OS/2 in either of the following: v Press the Fn+F12 keys. Note for Windows NT If you are using ... in the "Power Management Properties" window. In hibernation mode, the following events: v The ring indicator (RI) is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Wait a few seconds before resuming normal operation. If you want to use hibernation mode, you will need to reenter operation mode. If...
Note: The computer does not accept any of the following occurs: v The system status, RAM, VRAM, and setup data are using OS/2 in either of the following: v Press the Fn+F12 keys. Note for Windows NT If you are using ... in the "Power Management Properties" window. In hibernation mode, the following events: v The ring indicator (RI) is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Wait a few seconds before resuming normal operation. If you want to use hibernation mode, you will need to reenter operation mode. If...
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
... board. 021x Keyboard error Run interactive tests of them. System board. 50 ThinkPad T20, T21, T22, T23 (MT 2647/2648) DIMM. 2. Remove the Ethernet More than one specified in IBM BIOS Setup Utility. 3. System board. 0231 System RAM error-System RAM fails at offset nnnn. Enter IBM BIOS Setup Utility by entering supervisor password, and select "Password...
... board. 021x Keyboard error Run interactive tests of them. System board. 50 ThinkPad T20, T21, T22, T23 (MT 2647/2648) DIMM. 2. Remove the Ethernet More than one specified in IBM BIOS Setup Utility. 3. System board. 0231 System RAM error-System RAM fails at offset nnnn. Enter IBM BIOS Setup Utility by entering supervisor password, and select "Password...
Hardware Maintenance Manual
Page 57
...Setup Utility to reset the time and date. System board. 1. Replace the backup battery and 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... NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in IBM BIOS Setup Utility. 2. Load Setup Defaults in sequence 1. ThinkPad T20, T21, T22 and T23 series 51 System board. 1. DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board....
...Setup Utility to reset the time and date. System board. 1. Replace the backup battery and 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... NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in IBM BIOS Setup Utility. 2. Load Setup Defaults in sequence 1. ThinkPad T20, T21, T22 and T23 series 51 System board. 1. DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board....