HomeHere’s how you can disassemble laptop and replace or upgrade memory aka RAM in a Toshiba Portege M400 Tablet PC. As you see on the picture below, there is no access to the RAM slots on the bottom of the laptop. Why? Because both RAM slots are hidden under the keyboard.
According to Toshiba specifications a Toshiba Portege M400 Tablet PC can handle up to 4GB memory total. That means you can install up to 2GB memory module into each slot. Toshiba Portege M400 configured with PC2-5300 DDR2 667MHz memory modules.
You can easily upgrade a Portege M400 laptop to 4GB yourself; all you need is a couple of screwdrivers, two 2GB memory modules and 15 minutes of your time.
Before you start turn off the laptop, unplug AC adapter and remove the battery.
Now I’m going to remove the keyboard.
Carefully insert a small flathead screwdriver under the keyboard bezel and lift it up. Continue removing the bezel with fingers.
The keyboard bezel has been removed.
Now remove two screws and release a small plastic latch in the middle.
Lift up the keyboard as it show on the picture and place it upside down on the palm rest.
You’ll find two covers under the keyboard. Both memory modules are hidden under the right cover. Remove two screws and remove the cover.
Both RAM slots are occupied with 512MB memory modules. I’m going to remove both 512MB modules and replace them with two 2GB modules.
Spread latches on both sides with thumbs.
The memory module will pop up at a 30 degree angle.
Carefully pull the memory module by the edges and replace it with a new one. Repeat three last steps with the second memory module.
March 23rd, 2009 at 4:29 pm
HI
Thanks for Website its helps me a lot to open My laptop to upgrade RAM.
Thanks
AHMED
April 7th, 2009 at 1:51 pm
Thanks very much — your instructions and pictures enabled me to do what I needed!
April 27th, 2009 at 5:22 am
Thank you so much, I have a main PC but used this laptop for my Batchelors. Now I can keep it and not fork out a load on a laptop/tablet for my masters thanks to you. THANK YOU SOOOO MUCH!!!
May 7th, 2009 at 7:15 am
Thanks a lot. I was having a heck of a time figuring out where to upgrade the RAM and your instructions kept me from removing every screw in the machine!
May 20th, 2009 at 3:38 pm
Thank you, Great Help
May 21st, 2009 at 4:22 pm
Thank you so much for this. You helped me upgrade the RAM on a friend’s laptop. I appreciate the time you put into the guide.
May 24th, 2009 at 7:18 am
So Helpful! I just saved some money and time!!!
June 14th, 2009 at 2:52 pm
Thanks for the help!!! I saved lots of time and money because of you
August 18th, 2009 at 7:04 pm
Wow, Thanks so much Great job. Question, The screws that hold the cover to the memory slots are really tight. How much pressure downward can I put on this area?
August 18th, 2009 at 9:26 pm
Mark,
I’m not sure why you are experiencing a problem. Make sure to use the right screwdriver which fits screws tightly.
September 25th, 2009 at 7:10 am
Thanks a lot.. It really helps me to upgrade the RAM.
November 9th, 2009 at 8:22 am
Hey, do you need to upgrade both with a 1 GB? I only bought one 1GB RAM module. Is that okay or do I need to replace both modules?
November 9th, 2009 at 10:28 am
Thank you for your guide! I followed everything to the letter but now my screen won’t work. Help?
November 9th, 2009 at 10:32 am
advo88,
Yes, you can replace just one memory module.
November 9th, 2009 at 10:33 am
advo88,
Apparently the memory module is not installed correctly. Try reconnecting it.
Also, there is a chance that your new module is bad, but I cannot tell without testing it.
Try installing the old one back in place and test the laptop again.
November 10th, 2009 at 10:17 am
Thank you for your reply! I tried re-installing the old module but the screen still doesn’t work. I’m not sure what the problem is? But I haven’t killed the computer have I?
February 8th, 2010 at 10:12 am
Thanks so much for the information. This not only showed me how to get into my laptop, but saved me time and money. Much appreciation!!!
February 22nd, 2010 at 10:42 am
That’s very useful info for all Toshiba Laptop users….It’s very simple if you follow the pics above…
Well done…
September 21st, 2010 at 6:29 pm
Thanks for taking the time to do this. It is very much appreciated! You saved me hours of looking for the location of the memory!
September 28th, 2010 at 4:21 am
i was told that mine had 2 * 1Gb on board. Thanks to your description I was able to open the system and see there was only one 2Gb. So I’ve saved buying 2*2Gb and just bought one. Thanks
October 17th, 2010 at 2:01 pm
This was great, I just bought a used tablet and wanted to upgrade the memory, this link made it so easy to do. Thanks !
December 23rd, 2010 at 9:51 am
The only thing that’s worth doing is checking to see that your system recognizes the memory. Assuming you’re running Windows, go to Start->Control Pane->System. It should show you the amount of RAM that you think you have.
January 21st, 2011 at 7:47 am
Awesome Presentation with step by step pictures
April 4th, 2011 at 6:23 am
Thanks a million. just upgraded to 4 GB. Windows 7 was unusable with 1 gig. Will try to make a donation
August 11th, 2011 at 7:28 am
Thank you, it was a snap.!