Errors without messages, For Windows XP

Error	Beep symptom	Error message	Solution
code

0254	Two short beeps	0254: System NV7 Volume	Power off to discharge CMOS, and
		checksum bad - Default	then restart your computer.
		configuration used

0260	Two short beeps	0260: System timer error	Have the computer serviced.

0270	Two short beeps	0270: Real time clock error	Have the computer serviced.

0271	Two short beeps	0271: Check date and time	Press F1 to enter into the BIOS
		settings	Setup menu, press F9 to load the
			defult settings, press F10 to exit
			and restart your computer.

0280	Two short beeps	0280: Previous boot incomplete -	Load default settings in BIOS
		Default configuration used	Setup Utility.
			If you still see the same error
			message, have the computer
			serviced.

02D0	Two short beeps	02D0: System cache error - Cache	The cache is disabled. Have the
		disabled	computer serviced.

02D2	Two short beeps	CPU Variable MTRR configure	Have the computer serviced
		failed.

02F0	none	02F0: CPU ID:	Invalid CPU is installed. Install
			correct CPU.
			If you still see the same error
			message, have the computer
			serviced.

1802	Two short beeps	1802: Unauthorized network card	Power off your computer and
		is plugged in - Power off and	remove the PCI Express Mini Card.
		remove the miniPCI network card.

1804	Two short beeps	Unauthorized WAN card is	Power off and remove the WAN
		plugged in - Power off and remove	card.
		the WAN card.

none	Two short beeps	System Configuration Data Read	Press F1 to enter the BIOS Setup
		Error	menu. Press F9 to load the default
			settings. Press F10 to exit. Restart
			the computer.

2200	none	2200: Machine Type and Serial	Machine Type and Serial Number
		Number are invalid.	are invalid. Have the computer
			serviced

2201	none	2201: Machine UUID is invalid.	Machine UUID is invalid. Have the
			computer serviced.

Errors without messages

•Problem: My screen keeps blanking when I do not want it to.

Solution: You can disable any system timers, such as the LCD turn-off timer or the blank timer. For Windows 7 and Windows Vista:

–Start Power Manager. Switch to Advanced view.

–Click the Power plan tab, and then select Maximum Performance from the predefined power plans.

For Windows XP:

Chapter 10. Troubleshooting computer problems 161

5016W78 specifications

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In summary, the Lenovo 5016W78 combines sleek design, powerful performance, and user-friendly features, making it an ideal choice for anyone seeking a dependable laptop for work or leisure. Its advanced technologies ensure it remains a relevant choice in an ever-evolving tech landscape, catering to the needs of today’s mobile and tech-savvy users.

Lenovo 5016W78 manual Errors without messages, For Windows XP

Models: 5016W78

Error

Errors without messages

For Windows XP:

5016W78 specifications