Can I add 1GB memory chip in 2nd slot with a 512MB chip in 1st?

I will only run the 2 X 1GB memory DIMM's in slot 1 and slot 3 for dual channel architecture. Keep the 512 MB and 256's for spare or sell them.

http://www.shopping.com/xPF-Toshiba-Toshiba-Satellite-Notebook-PC-M35X-S114

Looking at the specs, the max is 2gb for your Toshiba. According to this website, its only a 256mb ddr sdram. So my guess is you only have 1 slot for the ram. I'd go with a 2gb ram if you can afford it, 1gb just don't cut it in todays technology.

I believe its the PC2700 model, so find a 1gb or 2gb PC2700 @ 333mhz and you should be set.

I have the same issue with my laptop. I have not been able to get the laptop to accept 2gb of memory yet, but I did find something that works. If you put your 512mb memory that works in the laptop and then add a 1gb stick in the second slot it works. Or at least it did for me. It's better than nothing. I am still trying to figure out how to get it up to the 2gb max. Will add a solution if I figure it out.

It looks like the A25 will only hold 1g of PC2100, which is really plenty, unless you're a serious gamer or into graphic arts and need an extreme high definition video. Here's a link to the memory configurator that I use in order to find the proper memory, max held, and the chipset. You might double check to be sure I looked up the right machine. If it is the right machine, I suggest two 512mb chips. Sometimes you can't run one 1g chip because the slots are designed to only hold a certain amount, and if they will hold the 1g chip, sometime the machine doesn't run properly. It wants to use both slots accordingly, running only one creates conflicts. This should help in boosting your RAM.

The T40 has two ram slots, you can put a 1g chip in each totaling 2g. If the chip will remove, then it is changeable. Vista needs a minimum of 256 to run, so, when you change BOTH chips to equal 2g it will probably read 1.744g, or it may read the full 2g. If it only reads 1g, then the second slot under keyboard may have malfunctioned. It could also be that the 256 chip is bad and your really only running 512 now. With all that said, in order to achieve 2g, you will need to put a 1g chip in each slot.

Hello, if you have an intel m processor for your sony then u are somewaht out of luck. the base memory is 256 megs and it is not in the motherboard but rather integrated in one of the slots itself, that means if u put a 512 mb chip into that certain slot it will only read 256. a lot of people are mislead into thinking they can put two 512s and get a gig of memory, but not true, at least not with most of the sony intel processors. find the base slot by switching chips around, then leave the 256mb chip there. then u can add a 512mb to the expandable slot and get over 700bytes. if u can find a 1gb compatible stick,then try that the same way, leave the original hynix base slot chip in and add the 1gb, if u can find one, then u will have a little over 1280 of which u can up the video graphic usage up to 128 in the bios, and have your 1gb in memory. if u find a 1gb memory chip that work,drop a line as to what brand and size u used

Hi reisrui, yes it is odd. (It's not the first time I have seen this.)
According to you're manual on page 6, under Specifications. The manual say's you can run up to a Max speed of PC3200 400MHz, 1GB in slot one. In slot 2 you can run a Max of 1GB of PC2700 333MHz in slot 2. Every motherboard I have come across that can run two different speeds of memory. The system will reduce the Max speed to the lower MHz memory speed. If you currently are using 512MB PC3200 400MHz in slot 1 & add 1GB of PC3200 400MHz into slot 2 for a total of 1.5GB of memory. The motherboard will ruduce the total memory over all speed to PC2700 333MHz. Motherboards alway run at the lower memory speed if two different speeds are presant.
I can’t be 100% sure of the 1GB of PC3200 400MHz into slot 2, will run at all! Or if it will be reduce down to 333MHz. I am sure you can run 2GB of PC2700 333MHz, 1GB of memory per slot in you're board for a total of 2GB.

If I can help you further, feel free to post.
Suggestions & comments welcomed.
Mike

This model laptop will not allow you to add a video card to it. The video card and all of its components are part of the Laptop motherboard already.

You can, however upgrade your memory from the 1GB up to a total of 2GB, but your current configuration is 2x512mb chips.

So right now you have 2 memory slots available but they are being used by the 2 512mb chips. You will have to remove them and replace them with 2 1gb chips. This can be fairly pricey.

Here is a link to your computer specs

http://h10010.www1.hp.com/wwpc/au/en/ho/WF06a/1090709-1116637-1116665-1116665-1116665-12435984.html

you can open it up and see, take out the ram to see what kind it is

Most newer laptops have easy access to their memory slots, I'd recommend you got to the manufacturer's website and look for the maximum memory your system will allow. If you look at the bottom side of your laptop, you may see several small covers with just one or two screws in them. One of them will be where the memory slots are. It is not uncommon for the laptop to have a very small 'memory chip' icon on the cover. Be aware that many laptops only support two memory chips, and may have both filled already. For example, if laptop has 512MB memory, it may have two x 256MB chips in it. Which would mean, that to upgrade to 1GB memory, you would have to purchase two x 512MB chips. or one 1GB chip.