Question about Dell Latitude C640 Notebook

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Install memory in Dell Latitude C640

I need a procedure to install additional memory (RAM) in Dell Latitude C640

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  • peppy53 Sep 11, 2009

    where is the ram memory located on a dell C640 latitude laptop, i want to upgrade if its under the keyboard can anyone give me exact instructions for removing the keyboard so i can access the ram memory modules thanks in advance

  • Patrick Michaels
    Patrick Michaels May 11, 2010

    open bottom and you'll see memory..other slot is under keyboard..what is your configuration now?

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Go to the Dell Web Site and search for the service manual. It will have step by step instructions including pictures

Posted on Feb 18, 2010

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Posted on Jan 02, 2017

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Hi! pls. help me if there any Ram other than ddr 266 that compatible to my dell latitude c640 pls. i want to upgrade it into higshest


Go here and see your options:

http://www.crucial.com/store/listparts.aspx?model=Latitude%20C640%20Series&Cat=RAM

This site is your best choice for support, price and quality.

Aug 11, 2011 | Dell Latitude C640 Intel Pentium 4-M...

1 Answer

Remove or reset dell latitude c640 bios password


How to reset The Latitude C640 Bios password?!

1.First flip your laptop over and remove the battery, as well as any cables connected to the laptop.
2.Remove the screw latched into the memory panel on the bottom of the computer found near the rear.
3.Lift the panel off and expose the memory modules.
4.Seek for a small push-button and press it, holding it for about two seconds. Reassemble your laptop and start it up.

Thank You!

Feb 01, 2011 | Dell LATITUDE C640, P4...

1 Answer

I have just reformatted a Dell latitude c640 laptop for a friend and installed windows xp pro up to service pack 2. upon reload first time the laptop is suffering screen tearing issue, it is like the...


It appears to be the issue with the ram. Turn off laptop, remove battery and unscrew the the cover to the RAM. Its on the back panel. Remove and reseat the RAM after cleaning the gold pins.

You can also use the Microsoft memory diagnostic tool.

Sep 25, 2010 | Dell Latitude C640 Notebook

1 Answer

I am going to install a wireless card in my Dell Latitude C640 laptop. I recently watched an installation video on youtube. I noticed there was some sort of wireless antenne mentioned. Are they...


i dont think the c640 usually comes with wireless so i dont think the antenna will be in there so you might have to get them. but you can take off the ram cover on the bottom and see if the wires are there. this shows the wireless card in there
http://support.dell.com/support/edocs/systems/latc640/sm_en/upgrades.htm#999869

Apr 13, 2010 | Dell Latitude C640 Notebook

1 Answer

I want to now which ram is used for dell latitude 640, latitude 520, latitude 430, latitude 420 and inspiron 2200 is it ddr2 or ddr1 and max capicity for upgrade


Here are the max memory and speeds:
Lat C640 is Max 512M per stick DDR-266 (PC2100) or DDR333 ( PC2700 ) for a total of 1024 Meg

Lat D520 is either 2 or 4 Meg total. DDR2-667 ( PC2-5300 )
Although the memory can be installed one module at a time, the best performance comes from using matched pairs of modules.Maximum memory for systems with the Intel 945GM chipset is 4096MB, maximum memory with the Intel 940GML chipset is 2048MB
Lat D430 has only slot with a Max of 1 Meg. You can use DDR2-667 (PC2-5300)  or DDR2-533 (PC2-4200)

Lat D420 is a max of  1.5G    . Use 1GB DDR2-533 (PC2-4200)

Inspiron 2200 is one slot with a max of 1280 Meg. recomended is 1GB DDR-333 (PC2700)

Here is a link to find almost any memory you need:
http://www.crucial.com/index.aspx

NOTE:
When mixed speeds in the same PC, the memory will run at the slowest speed installed or the highest speed allowed by your system, whichever is slower.

Good Luck

Dec 17, 2009 | Dell Latitude C640 Notebook

1 Answer

Update BIOS for memory upgrade


You cannot change the memory settings in BIOS. All you need to do is go into the bios screen. confim that it has seen your new memory and "save and exit" If it is not showing your new memory try removing and reinstalling the memory confirming it is installed correctly. it should just see it.

Jan 09, 2009 | Dell Latitude D600 Notebook

1 Answer

Memory upgrade


it's underneath the computer, behind a small panel held down by 1 or two screws..open that panel up, and either add the memory or remove what's in there, and replace it..make sure you are wiped clean from ESD(electrostatic discharge) before you touch them.

May 28, 2008 | Dell Latitude C640 Notebook

1 Answer

Dell laptop memory install


available physical memmory is what all your programs on your comp is using like windows virus software drivers im thinking you probably have spyware or bugs in your comp that could be bringing memmory down

total physical memmory is what you just put in

May 09, 2008 | Dell Latitude C640 P4 Mobile Notebook

1 Answer

Problem while playing DVD


Sounds like either there is not enough memory in the laptop to handle what you want it to do, or the operating system needs to be restored. I would try the latter of the two, because that is cheaper, and then if that does not work, then upgrade the RAM

Aug 17, 2007 | Dell Latitude C640 Notebook

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