
3. Right-click your C drive entry and then click
Properties
.
4. Click the
Tools
tab.
5. Click
Optimize
.
6. Click
Optimize
again to start a disk-defragmentation process.
Insufficient memory
Symptom: Insufficient memory
In general, the more memory that is installed, the better the Windows operating system runs.
Action: Install additional memory. For information about purchasing memory, see “Lenovo Support Web
site” on page 32. For step-by-step instructions on installing memory, see “Installing or replacing a memory
module” on page 93.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 53 for instructions). If you need technical assistance, see “Lenovo Support Web site” on page 32.
Printer problems
Symptom: The printer does not work.
Actions: Verify that:
1. The printer is turned on and is online.
2. Paper is loaded correctly.
3. The printer signal cable is securely connected to the correct parallel, serial, or USB connector on the
computer.
Note:
Non-IEEE-approved printer signal cables might cause unpredictable problems.
1. Any device drivers and other software that came with the printer are correctly installed.
2. You have assigned the printer port correctly in your operating system, application program, or BIOS
settings. For more information about BIOS settings, see Chapter 6 “Using the Setup Utility program”
on page 55.
If the problem persists, run the tests described in the documentation that comes with your printer. If you
cannot correct the problem, have the computer serviced. See “Lenovo Support Web site” on page 32.
Serial port problems
Use this information to troubleshoot the serial port and devices attached to the serial port.
Symptom: Serial port cannot be accessed.
Actions:
• Make sure the serial cable is securely connected to the serial port on the computer and to the serial device.
If the serial device has its own power cord, make sure it is attached to a properly grounded electrical outlet.
• If the serial device has its own On/Off switch, make sure it is in the On position.
• If the serial device has an Online switch, make sure it is in the Online position.
• If the serial device is a printer, make sure paper is loaded correctly.
• Verify that any software supplied with the serial device is correctly installed. Refer to the documentation
for the serial-device option.
• Make sure that the serial-port adapter, if you added one, is properly installed and firmly seated.
Chapter 5
.
Troubleshooting and diagnostics
51
Содержание ThinkStation 2551
Страница 2: ......
Страница 8: ...2 ThinkStation Hardware Maintenance Manual ...
Страница 15: ...1 2 Chapter 2 Safety information 9 ...
Страница 16: ... 18 kg 37 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs 10 ThinkStation Hardware Maintenance Manual ...
Страница 19: ...1 2 Chapter 2 Safety information 13 ...
Страница 20: ...1 2 14 ThinkStation Hardware Maintenance Manual ...
Страница 21: ...Chapter 2 Safety information 15 ...
Страница 27: ...Chapter 2 Safety information 21 ...
Страница 31: ...Chapter 2 Safety information 25 ...
Страница 60: ...54 ThinkStation Hardware Maintenance Manual ...
Страница 70: ...64 ThinkStation Hardware Maintenance Manual ...
Страница 186: ...180 ThinkStation Hardware Maintenance Manual ...
Страница 187: ......
Страница 188: ......