I never ever used the memory slot under the laptop and just when I want to add more memory, find out it’s defective !!

Are you sure it’s defective. Just in case try reinstalling memory module a few times. Maybe contacts inside the memory slot got oxidized and reinstalling the module will clean them up. Also, try another memory module. Maybe your new module is defective.

my Dell D610 Latitude still does not recognize the memory chip in the memory bank under the laptop. Somebody suggested I do a Bios update. What do you think?

You said you tried original sticks in the bottom slot and they were not recognized either.
I’m afraid the memory slot itself is defective. There is not much you can do.
You cannot fix the memory slot at home. I don’t think this laptop worth replacing the motherboard.
Probably it’s time to move on and buy a new laptop.

Happy Holidays ! I tried with the guitar pick at least 10-15 times in different positions and angles, however, my Dell D610 Latitude still does not recognize the memory chip in the memory bank under the laptop. Somebody suggested I do a Bios update. What do you think? Thank you

My Dell D610 Latitude laptop will not recognize any RAM chips in the memory bank under the laptop. The memory chips, however, are being recognized in the bank under the keyboard. Why is this happening?

It’s possible the memory slot on the bottom is defective.
You can try this fix:
http://www.laptoprepair101.com/laptop/2008/02/28/fix-laptop-memory-slot-failure/
Hopefully it will work when you apply some pressure on the memory module.

i seen only can install 1GB in each slot… theres no way to have maybe 2GB in each slot , making total of 4GB?

I believe for this laptop 2GB is max.

Maybe I need to look into buying a better verison of a laptop to play the games

Playing games? Probably you need a new laptop for that.

The game I have tried downloading was 4GB… thats double of what this computer seems to hold.

This is wrong. The game could be 4GB but you saving it to the hard drive, not memory (RAM). You can download and save this game on your laptop if you have enough hard drive space but probably it will not run smoothly. Check RAM requirements for the game.