Question about Dell Latitude C640 Notebook

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Bought second hand c640

When i boot it up a white screen comes up saying the the device in the system modular bay cannot be identified. It may not be completely inserted...... and the same when i press off or esc key what do i do?

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Re: bought second hand c640

It's probably your hard drive or cd-rom drive not inserted correctly. Remove each of them, then re-install. For the hard drive: there will be a square compartment under the laptop, remove it with a screwdriver, the drive is square and metal. It should slide one way. Slide it out completely, then re-insert it. The CD drive: there should be a screw about 6 inches from the middle of the cd drive door on the bottom of the laptop. If you remove this screw, you should be able to pull the drive out. Do this, then re-insert it. Only do this part if what you tried with the hard drive doesn't work.

Posted on Sep 09, 2007

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Re: bought second hand c640

Power off even it it takes a battery removal. Now check modular bays and remove then fully insert each device and retry power up. If same results, try repeating above with one of the modular devices removed.

Posted on Sep 09, 2007

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Feb 18, 2013 | Dell Latitude CPI-A Notebook

1 Answer

When the machine is powered on it displays an error on a grey screen saying the divice in the system bay cannot be identified, it may not be properly inserted or may have some errors, option 1 press...

Damn i have exactly same problem. i bought a new DVD writer and slided the same into the media bay. But now when i try to boot up i am getting the grey screen with 3 options.

Thanks in Advance.

Feb 18, 2011 | Dell Latitude D600 Notebook

1 Answer

C640 can't boot up

Ok.Better reinstall the os.Because disk boot error cannot be solved is suppose...To install the os follow these steps.

Step 1:Power on your system and press DEL key

You will see a blue screen with some options on it in white. (you can only use your keyboard to navigate in this screen). Go to the Advanced Setup Options ---> then select Boot Priority ---> 1st Boot device to be Floppy drive , 2nd Boot device to be CD-Rom drive

Step 2:Insert the Bootable DOS floppy in your Floppy Drive. Press F10 to save the bios settings and exit. (Your system will re-start automatically)

Step 3: Let the Dos load from the floppy and A: shows up.

Step 4: Change the Command prompt to HDD Drive letter, it will be D: or E in which u have Xp cd contenet.And type If xp content in d:under x folder mean.D:cd\x and press enter.

Step 5: now type on the D:\ prompt -- setup.exe and press enter

Step 6: follow the prompts there after. and for more info contact

Jun 19, 2009 | Dell Latitude C640 Notebook

1 Answer

Hi guy plz help me i got a dell latitude C640 and its not willing to detect my cd drive. after loading bios its telling me the device in the modular bay cannot be recognised and its not booting into...

check if any updates are availble for the bios
go to > drivers and downloads > put in your service tag and check if any update is available you can update your bios

you can also try restore your bios to factory settings you have an option for this in the bios menu as well and then connect the drive and then boot.

Further Queries are welcome
if you think my solution was helpfull please do rate me

Mar 28, 2009 | Dell Latitude C640 Notebook

2 Answers

Either issue with system modular bay or system file removed

remove any cd or floppy disks from the pc...reboot ..if the black screen reaper with the same message about the missing file have to insert the windows instalation cd ...and repair..the missing file

Jan 28, 2009 | Dell Inspiron 2200 Notebook

1 Answer

I need solution

Ok, this is a misworded error message on dells end. this laptop does not have a modular bay instead it has a locked in disc drive. Based on what i have seen on other dell laptops i would have to say the cd drive is going bad. To test this try removing the cd drive. Power the laptop on and push the eject button then power the laptop off. Flip the laptop overand there will be a screw to hold the drive in, this screw will be close to the center and will be the only screw in a square hole, remove this screw. Now if you followed my directions, you should have the drive out. Pull the tray out as far as it will go then grab the two sides closest to the laptop and gently pull it out. If you are having problems you can stick a flat screw driver in the square hole and push the piece of metel to the side to remove.

Now power the laptop on it may say something about there not being a cd drive(optical drive) if it does not say: "the device in the system modular bay cannot be identified" then you need to replace to CD drive.

Dec 04, 2008 | Dell Inspiron 2200 Notebook

1 Answer

It won't boot to the os

The modular bay refers to the optical drive (CD drive). There is a small screw holding it, I've had machines at my shop that this screw fallen out and the drive wasn't making a good connection. Be sure that the drive hasn't slid out a bit. Take it out clean the connection and put it back, making sure it's seated properly. Try this, then let me know, and we'll go from there.

Jul 29, 2008 | Dell Latitude D600 Notebook

3 Answers

This screen comes up when it is turned on: "The device in the system modular bay cannot be identified, etc.

I had the same problem.  I took out the optical drive, and powered it on, and it worked.  I may have to purchase a new optical drive?

May 22, 2008 | Dell Inspiron B120 Notebook

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