Upgrading memory for an everex va4100m

Yes you can upgrade 1 of the slots to 1GB, as long as 1GB stick of memory is the 256MB stick then you can have both, to check the memory you will have pull them out of the slots and have a look on a little sticker on one side of them. You are looking for i.e DDR400/333/266 if the 1GIG memory matches one of the values mentioned above, say it is a DDR400 and the 256 is a DDR400 then they are compatable if not you will have to just leave the 1GIG stick in by it self in DIMM socket 1.

Is your "2GB upgrade" one memory-stick, or two?
If it is one, then it's possible that the motherboard does not support so much RAM on one stick.
If it is two, then remove one stick, and try.
If it still fails, then remove that stick, and try the other stick.
If it still fails, then try your original 512KB stick.
If it still fails, then try your original 1GB stick.

The memory may not be compatible depending on the speed. Try taking out all the memory and just installing the 1Gig stick.. does it work?

If it does then the 1Gig stick is fine, but your PC probably doesn't like you mixing different types and speeds of memory.

If it doesn't work, the 1gig memory module might not be the correct speed your PC wants.

you can at most upgrade memory, rarely video, but I never seen ugrading a CPU on a laptop, most of the time the CPU is soldered and the MB does not support upgrade.

try to update your bios first.

IF THE SYSTEM SAYS YOU HAVE 1GB RAM THAN YOU HAVE 1 GIG OF RAM, EVEN THOU SOMEONE TOLD YOU YOU HAD 2-512MG=1GB.

HERE IS HOW I SEE WHAT YOU ARE SAYING YOU HAVE 2-DDR-2 1 GIG STICKS THAT MEAN IF 1 IS INSTALLED THAN YOU HAVE 1 GB AND IF YOU COULD GET 2 STICKS WORKING TOGETHER THAN YOU WOULD HAVE 2GB RAM.
1 CHIP SET = 1GB RAM
2 CHIP SET = 2GB RAM

YOU MOTHERBOARD MAY NOT ALLOW THAT MUCH RAM, OR WHAT I MEAN THE BIOS MAKE UP THE AMOUNT OF RAM.

TO RULE OUT ANY BAD CHIP SETS OR GOOD RAM OR BAD RAM.

TAKE THE PEACE OF RAM THAT IS WORKING OUT AND REPLACE IT WITH THE OTHER PEACE AND SEE IF IT WILL RUN.
IF IT WORKS THAN LEAVE THAT ONE IN PLACE AND INSTALL THE SECOND PEACE IN THE SECOND SLOT.
IF BOTH CHIP SET ARE GOOD THAN BOTH SHOULD WORK OKAY TOGETHER.
IF THERE IS A PROBLEM, IT MAYBE SOME DUST IN THE MEMORY LOTS
OR THE SLOT MAYBE DAMAGED.
OR
THE CHIP DESIGN LAYOUT MAYBE THE OPPOSITE SIDE, THIS MAY MEANS THE CHIPS MAY FACE EACH OTHER, OR FACE OUTWARD FROM EACH OTHER.

ROD

The memory should be DDR II Ram. To find how much ram you have simply click on Start then right click on "My Computer" and click properties. Chances are you have 512 ram. It will tell you in the lower right hand side along with your processer and windows version. Once you have found out how much ram you have, turn off your computer flip it upside down and pull out the battery. Then you should see a cover with one or two screws in it that measures about 3 inch by 4 inch. Remove the screws and take the cover off. This is where your memory goes. If there is 512 memory in your computer you will either have 1 512 memory stick or 2 256 sitcks. Remember that any time you upgrade memory it is best to take out the old memory and replace with either one stick of higher ram or two of equal ram. Never mis a 512 and a 256 or 512 and 1gig ect. Take the ram stick/sticks out and bring them down to the store with you just so as to get the correct memory. Also, remember when you replace the memory, if you are just upgrading to one 1gig stick to put it in the A DIMM slot. This is the primary ram slot.

1. bad memory
2. the motherboard doesnt support single sided and dual at the same time.
3. bios needs update
4. wrong slots for dualchannel?

if your pc is old, it may not be compatible with that amount of memory.. check to see your are buying the correct type of memory, a lot of pc's vary depending on model.. be sure to push down firmly when installing the memory stick.. hope this helps

no u dont need look @ the bios>if u insert it properly that should display it if it is not then teh card is bad>or the slot on the board if the solt works with the other card then there is no issue with the slot so replace it rate me solved if its help full thx