Question about Dell Latitude C640 Notebook

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Memory upgrade How do I install more memory into my Dell Latitude C640 laptop? I bought the memory but I have no idea what to do next! Thanks! Theresa

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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.

Posted on May 28, 2008

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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

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

3 Answers

Dell c640 audio problems


i installed windows xp service pack 3 in dell c640 latitude laptop after which the multimedia audio controller driver is not installed.

Apr 23, 2008 | Dell Latitude C640 Notebook

2 Answers

Dell latitude password bios forgotten


Hi, The only way for that is to contact dell support. you're gonna need help from a level 2 tech from austin as they're the only one who has the master password for that.

Oct 03, 2007 | Dell Latitude C640 Notebook

1 Answer

No 3d acceleration in Vista on ATI 7500


Well, I'm amazed a C640 runs Vista at all. There's no reason to buy a new hard drive, except for the novenlty of having one loaded with Vista on a C640. It's a great laptop, and runs Windows XP PRo perfectly well. If you have one od the Dell XP install disks, just boot from it, and whenever it finds the vista install, hit excape, then at the next screen hit "D" to delete the partition, then choose "quick format", and load the Operation system. If you need an install disk,let me know. Good luck

Sep 24, 2007 | Dell Latitude C640 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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