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Cmos key for toshiba c840

How can I access cmos setup on my laptop Toshiba satellite c840? I already tried Esc, F1, F2, F10, Del key but nothing happened. Can anyone help? Thanks

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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fowlercomp
  • 119 Answers

SOURCE: accessing bios

Some Compaq's actually have a partition on the hard drive for the BIOS. If someone
> used FDISK to remove the partition, then you won't be able to get into the BIOS
>without either re-creating the partition or by booting from a floppy with the setup
>utility on it. One of Compaq's disks will re-create the partition, but of course,
>will blow away all the data on your hard drive.
>
>I had to download two programs from Compaq:
>1) PC Diagnotics
>2) Setup for Portables
>
>I got them from the Drivers section of Compaq's site.
>
>This was one of the files, it is for an Armada 1750, so it probably won't work if
>you have a different machine, but will give you an idea of what to look for:
> www.compaq.com/support/files/armada/us/download/8093.html

Posted on Jan 18, 2009

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  • 1602 Answers

SOURCE: access Toshiba BIOS

WHEN YOU FIRST TURN THE COMPUTER A LIST OF INSTUCTIONS WILL POP UP FOR 5-9
SECONDS, YOU NEED TO PAUSE THAT PAGE SO YOU CAN GET THE RIGHT ACCESS.

HERE ARE SOME DIFFERENT COMBINATIONS TO TRY.

DEL BEFORE TURNING ON HOLD THIS KEY DOWN UNTIL YOU HEAR THE BEEPING NOISE.

F2
F1 DURING BOOT
F10
RESET DEPRESS 2 TIMES
CTRL ALT ENTER
CTRL ALT ESC

IF NONE OF THESE DO NOT WORK THAN YOU NEED TO BUY THIS GUYS BOOK VER COVERS BOIS 2006 AND NEWER

I HAVE THE OLD ONE. VER 1997

THE BIOS COMPANION BY PHIL CROUCHER






Posted on May 12, 2009

parrotheadpc
  • 2600 Answers

SOURCE: On start up my computer says rtc battery is low or

Your RTC battery or CMOS battery is either dead or too low to keep the correct settings, windows will not operate correctly without the proper date and time kept. This battery has to be replaced for your system to operate. Below is the service manual that will advise you of the proper procedure to replace the battery. Once the battery is replaced, reboot the laptop, go to the BIOS screen and reset the date and time, then reboot as normal. In the case of your particular laptop, the laptop has to be disassembled down to the lower case and motherboard. The included service manual has the procedure for this.

http://tim.id.au/laptops/toshiba/satellite%201400%201405.pdf

Posted on Nov 11, 2009

Testimonial: "thank you for your help. I will replace the batter but Im not sure what you mean by this sentence "In the case of your particular laptop, the laptop has to be disassembled down to the lower case and motherboard. The included service manual has the procedure for this. "

micromend
  • 748 Answers

SOURCE: Can't get into BIOS on my Toshiba Laptop

Hi
No manufacturers password that I have ever heard of but you can remove your keyboard and disconnect the mother board (BIOS) battery. Leave it disconnected for a few minutes. When reconnected the password should be gone. A few laptops actually have a jumper to do this.

Posted on Mar 29, 2010

  • 181 Answers

SOURCE: My toshiba Satellite P300 can't

check RAM or keboard

Posted on Aug 10, 2011

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1 Answer

How do I get it to go into bios when pressing f2 doesn't work?


Per the internet site, it depends upon the model of laptop. Here are some examples:

Laptops - Access Bios Settings Key

Issue


The most common Access Bios key is the "DEL" button or "F2". This depends on the laptop model, however, and can be confusing if you do not know which key to press.


Solution


Here is a list of laptop models and brands with the keyboard commands / key for accessing the BIOS Setup:



Acer: F1, F2, CTRL+ALT+ESC

ARI: CTRL+ALT+ESC, CTRL+ALT+DEL

AST: CTRL+ALT+ESC, CTRL+ALT+DEL

Compaq 8700: F10

CompUSA: DEL

Cybermax: ESC



Dell Laptops:

Dell 400: F3, F1

Dell 4400: F12

Dell Dimension: F2 or DEL

Dell Inspiron: F2

Dell Latitude: Fn+F1 (while booted)

Dell Latitude: F2 (on boot)

Dell Optiplex: DEL

Dell Optiplex: F2

Dell Precision: F2



eMachine: F2

Gateway 2000 1440: F1

Gateway 2000 Solo: F2

HP (Hewlett-Packard): F1, F2 (Laptop, ESC)

IBM: F1

E-pro Laptop: F2

IBM PS/2: CTRL+ALT+INS after CTRL+ALT+DEL

IBM Thinkpad (newer) Windows: Programs-Thinkpad CFG.



Micron: F1, F2, or DEL

Packard Bell: F1, F2, Del

Seanix: DEL

Sony VAIO: F2

Sony VAIO: F3

Tiger: DEL



Toshiba 335 CDS: ESC

Toshiba Protege: ESC

Toshiba Satellite 205 CDS: F1

Toshiba Tecra: ESC then F1 or F2



Toshiba Notebook [Newer models]:


  • Turn on the computer by holding down the power button while pressing the ESC key



    • The machine will beep, then display:




    • Check System, then press [F1] key.





  • Release the ESC key


  • Press the F1 key


Laptops Access Bios Settings Key

Apr 03, 2015 | Computers & Internet

1 Answer

My toshiba c850 is in flight mode, how do i get out of this?


Restart your computer During the boot process you will see on the screen to press a certain key to enter setup usually the Delete or F2 key this will vary depending on your computer and operating system Press and hold that key during the boot up process to enter BIOS using the arrow keys load failsafe defaults or load optimized defaults press escape then press f10 to save to cmos to restart
If this fails you might try some of these Acer: - Ctrl+Alt+Esc

ALR PC: (F2) or (Ctrl)(Alt)Esc)

AMI BIOS: (Del), (F1) or (F2)

AST, Advantage, Award, Tandon: - Ctrl + Alt + Esc

Award BIOS: (Del) or (Ctrl)(Alt)(Esc)

Feb 04, 2013 | Toshiba Satellite Computers & Internet

1 Answer

Cannot access the bios on my brothers toshiba satellite l40-18z


On toshiba laptops you use the F10 key to get into your BIOS SETUP. The generally combinations of BIOS Setup is:

1) DEL (delete key)

2) F2 (F2 Key)

3) F10 (F10 Key)

4) Ctrl + F10 key

Oct 30, 2012 | Toshiba Computers & Internet

2 Answers

Hello sir, I have a problem with my Toshiba Dynabook 2140. I have changed its hard disk and I can't go to the bios setup menu how can I go to it. I have tried many times on hitting Del, F10, F12,...


Hussain - Greetings!
Do the following:
1. Turn on computer by holding down power button while pressing the ESC key.
The machine will beep, then display: Check System, then press [F1] key.
2. Release ESC key
3. Press F1 key

You should now have the BIOS screen
Regards, Mikeywaf

Mar 05, 2011 | Toshiba Satellite 2140CDS Notebook

4 Answers

How to enter cmos setup?


Dear Don't worry, there are some options you will have to press or check one by one "F1or F2 or F8 or F10 or F12 or del. Now, You can enter in CMOS setup.

Aug 04, 2009 | Toshiba Satellite 5005-S504 Notebook

2 Answers

Access Toshiba BIOS


WHEN YOU FIRST TURN THE COMPUTER A LIST OF INSTUCTIONS WILL POP UP FOR 5-9
SECONDS, YOU NEED TO PAUSE THAT PAGE SO YOU CAN GET THE RIGHT ACCESS.

HERE ARE SOME DIFFERENT COMBINATIONS TO TRY.

DEL BEFORE TURNING ON HOLD THIS KEY DOWN UNTIL YOU HEAR THE BEEPING NOISE.

F2
F1 DURING BOOT
F10
RESET DEPRESS 2 TIMES
CTRL ALT ENTER
CTRL ALT ESC

IF NONE OF THESE DO NOT WORK THAN YOU NEED TO BUY THIS GUYS BOOK VER COVERS BOIS 2006 AND NEWER

I HAVE THE OLD ONE. VER 1997

THE BIOS COMPANION BY PHIL CROUCHER






May 12, 2009 | Toshiba Satellite P105-S6177 Notebook

4 Answers

Cmos setup screen


If you're trying to get to the bios set up, when the initial Toshiba screen comes up it will tell you what to press for the set up towards the bottom of the screen.

Jul 24, 2008 | Toshiba Satellite A45-S250 Notebook

1 Answer

Toshiba Satellite 1400


To Access the Bios Setup Utility Here Is A List Of Key Commands And The Make/Model They Are For..

Acer - Aspire, Power, Veriton, Extensa, Ferrari, TravelMate, Altos
  • Press Del or F2 immediately after powering on.
  • The BIOS on the Acer Altos 600 server uses the Ctrl+Alt+Esc key and the F1 key for advanced options.
  • Older Acer computers may use also use the F1 or Ctrl+Alt+Esc keys to access BIOS.
Compaq - Presario, Prolinea, Deskpro, Systempro, Portable
  • Press F10 while the cursor in the top right corner of the screen is blinking.
  • Older Compaq computers may use the F1, F2, F10, or Del key to give access to BIOS.
Dell - XPS, Dimension, Inspiron, Latitude. OptiPlex, Precision, Vostro
  • Press F2 when the Dell logo appears. Press every few seconds until the message Entering Setup appears.
  • Older Dell desktops and laptops may instead use Ctrl+Alt+Enter or Del to enter BIOS.
  • Older Dell laptops may use Fn+Esc or Fn+F1.
eMachines - eMonster, eTower, eOne, S-Series, T-Series
  • Press Tab or Del while the eMachine logo displays on screen.
  • Other eMachine computers may use F2 to enter BIOS.
Fujitsu - LifeBook, Esprimo, Amilo, Tablet, DeskPower
  • Press F2 once the Fujitsu logo appears.
Gateway - DX, FX, One, GM, GT, GX, Profile, Astro
  • Press the F1 key repeatedly after restarting the computer.
  • Some older Gateway computers use F2 to access the BIOS Setup utility.
Hewlett-Packard (HP) - Pavilion, TouchSmart, Vectra, OmniBook, Tablet
  • Press the F1 key after restarting the computer.
  • HP Tablet PCs may use F10 or F12.
  • Other HP computers may allow access to BIOS using the F2 or Esc keys.
IBM - PC, XT, AT
  • Press F1 immediately after powering on the computer.
  • Older IBM computers (including some laptops) may utilize the F2 key for BIOS entry.
Lenovo (formerly IBM) - ThinkPad, IdeaPad, 3000 Series, ThinkCentre, ThinkStation
  • Press F1 or F2 after powering on the computer.
  • Older Lenovo products allow access to BIOS using Ctrl+Alt+F3, Ctrl+Alt+Ins, or Fn+F1.
Micron (MPC Computers) - ClientPro, TransPort
  • Press F1, F2 or Del immediately after powering on the PC.
NEC - PowerMate, Versa, W-Series
  • Press F2 to enter the BIOS Setup.
Packard Bell - 8900 Series, 9000 Series, Pulsar, Platinum, EasyNote, imedia, iextreme
  • Press F1, F2, or Del to enter BIOS.
Sharp - Notebook Laptops, Actius UltraLite
  • Press F2 after the computer starts.
  • Some very old Sharp PCs require a Setup Diagnostics Disk to access BIOS.
Shuttle - Glamor G-Series, D'vo, Prima P2-Series, Workstation, X Mini XPC, Surveillance
  • Press F2 or Del on startup.
Sony - VAIO, PCG-Series, VGN-Series
  • Press F1, F2 or F3 after turning on the computer.
Toshiba - Portégé, Satellite, Tecra
  • Press F1 or Esc after powering on to access BIOS.
The following companies are either closed for business or no longer manufacture or support mainstream computers systems so verifying the following BIOS access information is nearly impossible. I have included what I could dig up for anyone who might be interested:
ARI / ALR / AST (Advantage) - Press the Ctrl+Alt+Esc or Ctrl+Alt+Del keys.
Cybermax - Press the Esc key.
Tandon - Press the Ctrl+Shift+Esc keys.


Good Luck and Hope it helps...
http://www.wnycomputerpro.com

Jun 12, 2008 | Toshiba Satellite A35-S159 Notebook

4 Answers

Unable to get to CMOS using any of the 3 methods


This machine is one of the first "legacy free" models which means there are no BIOS options to change. All settings and resources must be assigned by the OS.
For details, please check the "legacy free" FAQ on MS Knowledge base.
If you are trying to access the BIOS to change boot order so that you can boot from a CD, hold down the 'c' key during POST/boot. This will case your laptop to boot from CD-ROM.

Apr 09, 2008 | Toshiba Satellite 5005-S504 Notebook

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