Question about Toshiba Satellite L645D-S4056 laptop

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CMOS jumper reset for Toshiba Satellite L645D-S4056

Does anybody know where the CMOS reset jumper is on the motherboard of the Toshiba Satellite L645D-S4056? Is it accessible without completely taking it apart? Thanks in advance!

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 19396 Answers

SOURCE: jumper settings

There is no jumper settings, it is just a small bridge aside the bios Chip. you bridge the two pins and power to reset cmos.

A much easier way is removing the Cmos coin shaped battery from motherboar for few seconds, and put it back, this will reset Cmos the same .

Posted on Oct 10, 2008

  • 29 Answers

SOURCE: My Toshiba Satellite M115-S1061 is completely locked up!

This is an easy process but you have to take the keyboard off. To start off take the main battery off, on the bottom side of the PC ther is a screw or a pair of screws that hold on the Keyboard(normally labled with a pic of a keyboard or the letter "K").

Once you have removed the keyboard screws you can turn slowly and gently pry up the keyboard, be sure to do this carefully as there are wires that attach the keyboard to the laptop. Once you have lifted the keyboard up u should see the "guts" and a small round battery.. Carefully take the battery out then replace it.

Now. The real question is what do you mean by "LOCKED UP" will it not turn on or is it frozen on a screen or what ? There might be a better solution to your problem than doing what is described above.

Posted on Nov 12, 2008

  • 55 Answers

SOURCE: need to change cmos battery for toshiba laptop 1805-s274

look on back of laptop you will see some panels under panels you will see two little wires connected to mother board that's the cmos battery unplug it and change it

Posted on Mar 30, 2009

SOURCE: Trying to locate the cmos battery for Toshiba Satellite L25-S121 laptop?

On the Toshiba Satellite L25 S1217 Laptop, the battery is indeed to the left of the wifi card. I was having a problem with a bios password and had spent a considerable amount of time looking. However Instead of taking the whole laptop apart, I removed the wireless card and used a precision flathead to maneuver the connector out of it's socket. after a few seconds I booted the laptop, with the battery still disconnected , and no password prompt! using the same screw driver, I was able to get the connector back into it's socket, and put the wireless card back in. it runs fine now. the trick is to only pull the connector out only enough so that it's not making the connection, if you pull it too far you will have a tougher time guiding it back into the socket. I hope this helps a lot of people with the same problem.

Posted on Apr 30, 2009

  • 108 Answers

SOURCE: Toshiba satellite a205-s5804 laptop will not start

Hi, there are a couple of possibilities:
1. If you are able to start the laptop on battery then the dc connector on the motherboard may be broken or have come loose, in which case take it in for repair.
2. The power switch may be broken, again take it in for repair.
3. Tip of the trade: Disconnect the battery and plug in the charger, see if it will switch on. If not then put the battery back in with the mains still plugged in and see whether it springs back to life.
4. Tip of the trade 2: Leave well alone for a couple of days without any battery or power connected then plug back in and see if it will switch on.
Removing the BIOS memory, don't know where you saw that but not recommended at all unless you want to render your laptop completely useless. Don't attempt to strip down unless you are technically experienced with disassembling a laptop.

Posted on Jun 10, 2009

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