Hardware Maintenance Manual
Page 32
...v Diskette Drives v Other Devices v Communication v Memory Test - v Video Adapter test supports only the LCD display on the screen. On the first screen, select the model and press Enter. If there is scanned only once. Exit Diag. 28 ThinkPad A21e Before running PC-Doctor DOS, detach the external ...Monitor. 4. otherwise, it . 6. To exit the test, select Quit - Follow the instructions on ThinkPad. Follow the instructions on page 41. Each key should be ...
...v Diskette Drives v Other Devices v Communication v Memory Test - v Video Adapter test supports only the LCD display on the screen. On the first screen, select the model and press Enter. If there is scanned only once. Exit Diag. 28 ThinkPad A21e Before running PC-Doctor DOS, detach the external ...Monitor. 4. otherwise, it . 6. To exit the test, select Quit - Follow the instructions on ThinkPad. Follow the instructions on page 41. Each key should be ...
Hardware Maintenance Manual
Page 39
...The following table lists the specifications of the ThinkPad A21e series: Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display Diskette drive Hard-disk drive I/O port Internal modem Audio PC Card AC adapter Bay device Description Intel® Celeron® processor 600 MHz, L2 128-KB cache PCI Bus 64... MB (SO DIMM x 1) 64 MB or 128 MB DIMM card (maximum of 256 MB) 114 bytes v 12.1-inch, 16M colors, SVGA (800×600 resolution) TFT color LCD v 14.1-inch...
...The following table lists the specifications of the ThinkPad A21e series: Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display Diskette drive Hard-disk drive I/O port Internal modem Audio PC Card AC adapter Bay device Description Intel® Celeron® processor 600 MHz, L2 128-KB cache PCI Bus 64... MB (SO DIMM x 1) 64 MB or 128 MB DIMM card (maximum of 256 MB) 114 bytes v 12.1-inch, 16M colors, SVGA (800×600 resolution) TFT color LCD v 14.1-inch...
Hardware Maintenance Manual
Page 43
...the louver near the power switch. 2. Run Diagnostics --> Other Devices --> IBM Fan. If two DIMMs are installed, remove one , and run the test again. 3. FRU Diskette drive CD-ROM or DVD drive Memory Fan Product overview Applicable test 1. Diagnostics --> Diskette Drives 2. Quick. 2...., return the DIMM to its place, remove the other one of them and run Diagnostics --> Memory Test - Interactive Tests --> CD-ROM/DVD Test 1. Interactive Tests --> Diskette 1. Diagnostics --> Other Devices --> CD-ROM/DVD 2. ThinkPad A21e 39 If the test does not detect the error, run Diagnostics...
...the louver near the power switch. 2. Run Diagnostics --> Other Devices --> IBM Fan. If two DIMMs are installed, remove one , and run the test again. 3. FRU Diskette drive CD-ROM or DVD drive Memory Fan Product overview Applicable test 1. Diagnostics --> Diskette Drives 2. Quick. 2...., return the DIMM to its place, remove the other one of them and run Diagnostics --> Memory Test - Interactive Tests --> CD-ROM/DVD Test 1. Interactive Tests --> Diskette 1. Diagnostics --> Other Devices --> CD-ROM/DVD 2. ThinkPad A21e 39 If the test does not detect the error, run Diagnostics...
Hardware Maintenance Manual
Page 48
... mode. 2. DIMM. 2. System board. 1. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Diskette drive. 6. Maximum memory size is installed correctly. 2. I/O device IRQ conflict. System board. 1....Setup Defaults in sequence 1. System board. 1. Shut down the computer and remove the extra memory. 44 ThinkPad A21e Hibernation error. Hard-disk drive. 7. Failing bits: nnnn. If memory size has been changed, re-create the hibernation file. Error messages Symptom or error Device ...
... mode. 2. DIMM. 2. System board. 1. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Diskette drive. 6. Maximum memory size is installed correctly. 2. I/O device IRQ conflict. System board. 1....Setup Defaults in sequence 1. System board. 1. Shut down the computer and remove the extra memory. 44 ThinkPad A21e Hibernation error. Hard-disk drive. 7. Failing bits: nnnn. If memory size has been changed, re-create the hibernation file. Error messages Symptom or error Device ...