HOW TO TROUBLESHOOT POWER ISSUES

IN LENOVO LAPTOPS

Troubleshooting power issues presume that there is no power availability. The

symptoms are mentioned below that shows the system has worked earlier but now

fails to work.

The two symptoms which indicate power issues are-

1.System will not power

on-

There will be no indication of any power, the power-on indicator is not on and the power supply fan

isn’t running also.In such situation, the user-

Check the power cord and

switch on/off connector for

the installation.

a

Make sure that 115/230 voltage

selector switch on the back side of the

system is set to the correct voltage for your vicinity. If you are changing the switch position,

ensure to unplug the laptop first.

b

Ensure that power is available. Connect

directly to wall sockets. Take out

any protectors and power strips.

Now, do a power supply reset by unplugging the power cable, and then press the power button

in and hold it for 15 seconds. Reattach the power cord and try to power on the laptop.

c

d

LOOK FOR POWER SUPPLY DIAGNOSTIC LED INDICATIONS-

SOME NEW POWER SUPPLIES ARE STOCKED WITH LEDS TO POINT

OUT POWER SUPPLY AND SYSTEM BOARD DETECTED CONDITIONS.

e

Ensure that power switch is mounted to chassis or to the fan/ speaker/ power switch assembly-

Switch should be safely attached to the chassis.

Check if the machine boots with the cover off, use a pencil

to press the power switch.

ff

g

1.Fit the connector to system board from power supply.2.Dissociate all drives and remove all memory and adaptors, just leave the processor, system board and the power supply system board connecter attached.3.Reset the Lenovo Laptop’s board and riser adapter card as required.4.If laptop is professionally services, ensure that all parts are correct for the laptop.

2.Laptop powers off unexpecte

dly-

The laptop shuts down suddenly by itself. No power

indicator is flashing.

a. Make sure that 115/230 voltage selector switch on the back of laptop is set to correct voltage of your vicinity. In case if you are

changing the position, make sure to unplug the laptop first.b. Take out any protectors and power strips.

c. Check all external cable connections for possible broken or loose connections.

d. Do test the laptop for a long period while booted to the system configuration usage.

e. Remove the laptop cover and check the power supply fan and fan processor fan (if installed) working.

f. Disconnect every additional drives (such as hard drives, CD-ROM or DVD drives) that were added.

g. Now, run the latest version of PC diagnostics available for your laptop.

h. Make sure that the updated BIOS code is installed.i. Set CMOS to default settings.

j. Reseat the memory. Save the settings and exit.

In case if you are facing any issue with any of the steps

above, then get in touch with our experts

at Lenovo customer support number

for further assistance. For instant solutions, dial at Lenovo

Toll-free number 1-800-958-239. We are available at your

service for 24/7.Original Source