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This looks very much like my old M90... you pop out the battery, locate and unscrew the memory door, and then snap in the new memory. Then restart the laptop... if it beeps at your (this is called a beep code) then the BIOS doesn't recognize one or both of the sticks. Assuming all goes well it should prompt you and say something to the effect of 'amount of system memory has changed, press F1 to continue or F2 for bios'... go into BIOS and confirm its reading the new memory amount (2GB will say 2064). This model apparently only accepts 2 x 1GB sticks so hopefully you didn't order 2GB sticks... unless there's a BIOS update you can install the mobo won't recognize memory sticks greater than 1GB. Good luck.
These links will be very helpful... please rate me if this helps you:
The best and quickest improvement is to add more RAM. Add another 512 Mb of RAM. If you already have a 512 Mb of RAM module then add another 512 Mb RAM module. If your laptop has 2X256 Mb RAM modules then you need to remove these and insert 2X512 Mb RAM modules.
The reason why you have 504 Mb RAM is that the video card has grabbed 8Mb of RAM off the main memory.
Check your RAM chips. A bad RAM chip will cause this symptom. Could also be a bad MB. But check the RAM first since it's a much cheaper fix. Might also just need to be reseated. After reseating, pull the battery and power cord. Press the power button for about 10 seconds. Then reinstall battery and power cord and try to reboot. If symptom persists, it's likely the MB.
i think you need a same brand of 256 for it to work? and when you buy something for your computer make sure that the one you both is the same brand or code with your 128 for example you have 128 ddr2 sdram so you can only upgrade it with 256 ddr sdran or 512mb,1gb,2gb ddr sdram.
You RAM module may be faulty or needs reseating in the DIMM slot B. Reseat the both RAM modules then :-
Check the POST information as it boots up, the amount of install RAM should equal to the installed RAM (the total RAM could be 256Mb or 512Mb or 1Gb depends how much memory you purchased with the laptop) less 64 Mb or 128 Mb RAM which is used for video memory (depends upon your video card requirements).
Once you fix your RAM problems you should be able to reinstall Windows.
Try reseating the memory and if that doesn’t work, install the 512’s one at a time to see if one might be defective. If the laptop still won’t turn on, reinstall original memory and see if laptop powers on. Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience. Thank You.