Adding another gb of RAM? (only for computer experts)?

Check motherboard ram configurations, mine is funky...

Usually you have to use a combo of single sided RAM and double sided to ensure stability. Start using DIMM slots 1, then keep adding up until you get your computer back up and running.

Also, check to see if the latency times are the same, sometimes if you get too variable of latency, the system crashes.

Sometimes DIMM 1 + 3 need to be filled before 2 + 4 can be used, so play around with the configurations because even if the slots are filled, the capacitors on the RAM may not be working with each other, so check your motherboard for configurations.

Also, make sure that each stick works, enter one at a time in DIMM 1, changing each after a successful boot.

Make sure your BIOS code is up to date. Fire it up with 2 x 1 GB, that is probably what you used to have. If that doesn't work, one of your 1 GB sticks is bad. If that works, shut down, take those out and fire it up with 2 x 512 MB. If that doesn't work, there is something wrong with one of your 512MB sticks. If that works, put it all back in and try again. Either the mobo really has a 2 GB limit, or you have a bad memory slot.

Make sure you are matching the ram up to the slots they should be in. There are two separate colors. Make sure the two 1gb sticks go into 1 color and the two 512mb sticks go into the other. this should work, but if not it means they just aren't compatible unfortunately.

LOL, sorry dude.. I just assume everyone on here doesn't know anything about computers out of habit :-P

Test all the sticks first to find out if they r functional. Secondly check whether ur mother board supports the type of combination of ram sticks u intend to use. It is always a good idea to use all the sticks of the same capacity.

If I have been you i could get XP, Vista has to many bugs to get labored out, one million gig of reminiscence is sturdy and a 250 gig not easychronic is a lot, i could take the prompt internet yet i could ask the I.S.P or internet service service to spice up the sign, 2 bars i think of could be iffy, 3 bars is do in a position, wish that helped you and sturdy success.

your mother board gets over loaded and why do you need so much RAM? 1 gb is enough unless your a hard core gamer.

stay with 3gb

What the hell do you need 3 GB of RAM for? I have 2 GB currently and haven't had the need for half of it yet.

Try it with 2GB first see if it boots up.