How do i change the RAM on a toshiba portege M400 laptop?

Toshiba Portege M400 User Manual Fingerprint Reader Limitations
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maybe its not compatible to the laptop the hard disk that you purchase try replacing it with lower capacity hard drive then reinstall the windows 7 again

this should be what you need
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1362642&rpn=PPM40U&modelFilter=M400-S4031&selCategory=2756709&selFamily=1073768662

Ok then - click Here, First driver download on the list is Windows 7 compatable - covers all Synaptics Touchpads - automatic install.

take a closer look left or right side of ur laptop u may find it there

Hi,
reboot, keep tapping F8 key, until you get to the system start up page ( black screen with writing )
the top offer is called
" last known good"
Choose this, let it roll, see how you do.

Or same reboot, keep tapping F8, til you get into start up menu, choose safe mode,
when it boots up, do a system restore,

start,all programmes,accessories, system tools,
system restore, choose the date it offers you,
Let it roll,
Should be good, if no hardware problems

Regards
Richard.

Open your system bios setup. Then under the boot options make sure your cd drive is one of the drives enabled in the boot path. Hope this helps & please remember to rate my answer. Thanks.

need a toshiba mother board for m40x250

Here's a link for Toshiba's UK site. I looked around a bit and they don't seem to offer much in the way of drivers. You might try driverguide.com I've found it to be a good place to find those hard to find drivers, plus it's easier to use than most manufacturer's sites.


http://www.toshiba.co.uk/

hi

check your numlock if it is on and off then yout laptop is ok other wise your display pro.
also go to bios setup load default setup and save it restart system.