Just upgraded memory ram on acer 5100 now having startup trouble. Will startup then shuts down...tried memory diagnostic, status memory ok.

You can only do that with onboard video cards. If you have an onboard you can choose how much ram to assign to it in your bios settings. However it is limited and if you already have 128 assigned to it, that's probably about all it's gonna give ya. But hey it never hurts to check Assigning your physical memory to your graphics card will result a shortage of your total system memory and your whole system will slow down a bit.
Video cards meant for better processing the graphical content of your system and free up your system's physical memory.[via]
So, if you buy a new and better video card with more memory you will have a fast system with better performance.

I am running windows 7 is a laptop....and it is using over 1 GB plus my startup programs. Your laptop can handle and use 4 GB of ram. (2) 2GB sticks. Below are the specs.

Module Size: 2GB

Package: 200-pin SODIMM

Feature: DDR2 PC2-5300

Maximum Memory: 4096MB

Sorry but the specs for this system states the highest possible ram is DDR2-667 with a max of 4 GB ( 2 X 2gb Ram)

go through the following steps in the weblink and check the steps what ever you can perform:

http://h10025.www1.hp.com/ewfrf/wc/genericDocument?cc=us&lc=en&dlc=en&docname=bph06569

hi my acer orbicam stopped working.Can you please advise how to fix it

This is done in the BIOS screen. Upon startup of the computer, press the key or key combination the screen tells you to in order to enter the BIOS. Somwhere in there there will be a selection for video memory that you can change. Thanks and please don't forget to give this solution a fixya rating. :c)

1. Determine what memory you have, how much your laptop will take, and how much you need. Go to www.crucial.com, and it can automatically scan your computer and tell you what you have and what it will take.
2. On the bottom is an access door for the memory. Remove the screw and pop open the access door.
3. Either replace or add the new memory module into the slot(s). They go in at a 45 degree angle, then press down for the locking tabs to lock the memory into place. To remove the memory, you just pull out on the locking tabs and the memory will raise up slightly allowing you to remove it.
4. Replace the access door and screw.

Thanks and please take a moment to rate this as fixya.

Many computers claim to be upgradeable to 4 GB of memory. While this may be true, it is also true that in order to reach 4 GB of memory the operating system needs to be 64-bit. I would be sure that the memory is seated properly first. Then I would exchange the memory. But my initial assumption is that it is too much memory for your operating system.

hmmmm...now..that's weird..did you do any disk maintenance? shut down all applications, all of em, and run disk cleanup and defrag..usually good for about 25% improvement in speed, at least..

got backup for that acer?

just look for notebook memory type ddr2, ddr2 all have the same amout of pins, you will have to remove one of the sticks of ram and replace with a 1GB or remove both and fit 2 x 1GB sticks.

seee below
http://www.ebuyer.com/store/Components/cat/Memory---Laptop