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Lenovo desktop PC Power supply probems after changing voltage setting from 230V - 115V

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If your country uses 240V mains then flicking the switch to 115V bypassed a voltage divider and probably blew the fuse in the power supply. If you are comfortable working with mains voltage, you can pop the PSU open and check the fuse. If it's blown then just get another one with the EXACT same ratings and you should be up and running again.

If it's not the fuse then you have bigger problems and it's time to replace the PSU. Any PSU should work as long as the wattage is the same as the original or higher.

Also, you could call Lenovo to see if the PC is under warranty. If so, the PSU is probably a user replaceable part, meaning they will send you a new one to put in and you just send the old one back.

Posted on Jul 13, 2013

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Posted on Jan 02, 2017

SOURCE: HP Pavilion s7310n Slimline Desktop PC | how to

This is an easy one, Purchase a new suitable PSU, probably from Dell, You will find a set of 4 screws at rear of machine, in line with PSU, undo these 4 screws. Unplug the plugs from all the connections, MotherBoard, DVD, Hard Drive etc etc. Then simply do the reverse procedure.. carefully reassemble..

Posted on Jan 29, 2010

  • 916 Answers

SOURCE: compaq presario sr1115cl wont power up

Try this troubleshooting guide it has worked for me in the past 99% of the time http://arstechnica.com/guides/tweaks/troubleshooting.ars

Posted on Jan 07, 2009

nick_helpap
  • 334 Answers

SOURCE: compaq presario sr1115cl wont power up

dont u dare ever use 220 line on thes eon usa power u blow it ever time u turn it on at 220 v dont u dare do that not no reset switch erther u must now buy new power supllly ok

Posted on Oct 12, 2008

MUKHTAR
  • 2017 Answers

SOURCE: HP D530 SFF desktop

it is depend up on the power supply connector and it will give the output according to the smps you can do one thing try with installing other fan and see is it in perfect rotation. bye

Posted on Oct 09, 2007

  • 12 Answers

SOURCE: compaq presario sr1115cl wont power up

Remove the power supply after everything is unplugged and take it to your nearest electronics store. They should have a tester there. This is probably the problem.

Posted on Jul 01, 2008

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I have been given a dell dimension 3000 that has come from america, how do i change 115v to 140v. from rae


You cannot change it without replacing the power sypply. When that machine came from the factory the power supply was designed to operate on 115v or 230v. There is a switch on the back that allows you to do that, but those are the only two choices. You may be able to buy a 140v power supply for that machine on eBay. Otherwise you will have to get one from Dell. You might try contacting a computer store in your country to see if they have one that was pulled out of a dead machine.

Nov 18, 2010 | Dell Dimension 3000 PC Desktop

1 Answer

My computer will not come on , it is plugged the screem is in power save , it sound like it's dead, I have no solution can you help


Check the power supply first to make sure it hasn't gone bad. Note: I had a case where somebody changed the input voltage from 115V to 230V. It did not work on a 120 Volt outlet until I discovered the red slide switch on the back of the power supply was in the wrong position. Maybe somebody thought it was an on/off switch. It isn't often that people get off so easily, but it's worth a look.

(The voltage setting switch is next to the power cord socket, is generally recessed slightly so it's hard to mess with it. Usually it's colored red, but is sometimes black, and is always marked 115V in the correct position for U. S. operation. If it reads 230V that is the problem, unless you are outside North America and using 230 Volt power. In that situation setting it to 115V may cause major damage.)

Nov 04, 2010 | Computers & Internet

1 Answer

Power problem .... tried 3 different power supply cords...the green light on the rear blinking meaning???? pushed switch on front ...held in.....no response only moved from 1 office to another....always...


was it dropped..?? the indicator light should b solid not flashing.. If you held the power switch in for several min an nothing Try plugging the cord directly into the wall. Do not use power strips as they may have failed.Toggle the voltage regulator switch from 115V to 230V then back again. If you are in North America, this switch must be on 115V. you may have a loose connection in the machine Lastly, you may need to go inside the case and confirm the thin wires running from the front power and reset switches are connected to the motherboard., to check be sure u are grounded an check all connections inside the computer... If the LED is still flashing, the power supply is probably bad.

Apr 28, 2010 | HP Pavilion a350n PC Desktop

2 Answers

Ok i neeed help!!!!!!!! on my power supply there is a switch which you can move to 115 volts to 230 volts. everytime i switch it to 230 volts the computer wont turn on? why is this happening? when i put it...


This is the power supply for your PC, depend on your local country power supply, some country like North US may use 110 V in their daily use electrical stuff and some country like Euro, UK use 240 V.

Your PC power supply is design to suit this 2 type of power input so can be sold everywhere. What u need to do is to make sure your local country power supply voltage and then just switch the input correctly, i think u have done it.

YBC (/\)

Oct 20, 2009 | Computers & Internet

1 Answer

My computer when in 115v it turns on and then immediately off


Switch the power button on the rear of the supply back to 115V.
Have someone remove the supply and replace with the same.
Sometime, just disconnecting the supply connections at the motherboard and re-connecting them, resets the supply.
I would go that rout first and go from their.

Sep 25, 2009 | Computers & Internet

1 Answer

Compaq presario sr1115cl wont power up


Remove the power supply after everything is unplugged and take it to your nearest electronics store. They should have a tester there. This is probably the problem.

Jul 01, 2008 | HP Compaq Presario SR1420nx...

1 Answer

Sony VAIO VGC-RB50 No Power


Most likely you have a problem with your power supply. First off make sure your Input voltage selector switch is properly set. This switch should be located next to the power cord. In most cases it is red in color, and will have "115V" and "230V" printed on the switch. I have seen red switches and black switches, but mostly red. I you live in the US, you should see "115V", Europe is "230V". Before flipping the switch, unplug power cord.

Since the light is blinking, you are getting power to the power supply. The power supply might be bad, and you need a new one.

Nov 07, 2007 | Sony VAIO VGC-RB50 PC Desktop

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