RAM COMPATIBILITY Is high density ram compatible ? Has VIA PM800 Chip set . Most sites say high density is compatible with VIA Chip set but I would like confirmation as I may not be able to return ram after purchase .

When purchasing RAM make sure ram modules are of the same brand any type
IE corsair ddr3 low density or hynix high density ddr2 you should always try to keep the same brand and type of ram
reason being the compatibility issue

and always place the largest ram module closest the CPU central processing unit

also check the ram sockets for dust and make sure the ram modules are securely seated you can do this by pressing the levers at either end of the ram sockets.
If you're not sure if a module is right for your system, use the
Crucial Memory Advisor tool for a list of guaranteed compatible modules.
First you will need to select the manufacturer from a drop down list then select your product line from a drop down list then select the model then click find it will take you directly to compatible ram also you will have an option to scan your system.
You should always ask for a guarantee on the compatibility before making any purchase and try to buy for working pairs if possible.

Make sure ram modules are of the same brand any type
IE corsair ddr3 low density or hynix high density ddr2 you should always try to keep the same brand and type of ram
reason being the compatibility issue

and always place the largest ram module closest the CPU central processing unit

also check the ram sockets for dust and make sure the ram modules are securely seated you can do this by pressing the levers at either end of the ram sockets If you're not sure if a module is right for your system, use the Crucial Memory Advisor tool for a list of guaranteed compatible modules. first you will need to select the manufacturer from a drop down list then select your product line from a drop down list then select the model then click find it will take you directly to compatible ram also you will have an option to scan your system you should always ask for a guarantee on the compatibility before making any purchase and try to buy for working pairs if possible

Search Toshiba m70-131 RAM.

Easy PC, nice and easy.

Example
http://www.memoryupgrade.pro/toshiba-laptop-memory-satellite-memory-satellite-m70-131.html

When purchasing RAM make sure ram modules are of the same brand any type
IE corsair ddr3 low density or hynix high density ddr2 you should always try to keep the same brand and type of ram
reason being the compatibility issue

and always place the largest ram module closest the CPU central processing unit

also check the ram sockets for dust and make sure the ram modules are securely seated you can do this by pressing the levers at either end of the ram sockets.

If you're not sure if a module is right for your system, use the

Crucial Memory Advisor tool for a list of guaranteed compatible modules.

First you will need to select the manufacturer from a drop down list then select your product line from a drop down list then select the model then click find it will take you directly to compatible ram also you will have an option to scan your system.

You should always ask for a guarantee on the compatibility before making any purchase and try to buy for working pairs if possible.

Hope this helps.

I see 3 possibilities:

1. While it may be the same MFG and same speed, the new ram MAY be high density chips and if you are using them with the original low density chips there may be a compatibility issue. (Some systems don't play well mixing single ranked and dual ranked chips etc)
2. You may need to flash the bios to ensure compatibility with the new RAM
3. The new ram is faulty.

This mainboard uses DDR400 memory

A High Density module is by far much slower than Low Density module at the same speed rating say PC3200/DDR400. High density modules are FAR CHEAPER, less than half the price when compare with low density modules and hence high density modules will NOT work on 90% of today's PC chipsets. LOW DENSITY modules have 100% compatibility with ALL systems and ALL chipsets. HIGH DENSITY modules only have 10% compatibility and are VERY SLOW.

So AVOID those 'High-Density - 128Mx4 config 1GB modules which is usually UNBRANDED and is NO NAME!

With this in mind it is far better to use low density Ram. Most RAM cards today are double sided, it all depends on the capacity of the RAM card.

Please rate this solloution as it it much appreciated.

Thanks.

By this do you mean you want to increase the RAM on your computer?
I suggest you use PC2100 DDR RAM (same speed) and increase the total RAM to what your require but use the same RAM manufacturer if possible.
If you want to install more than 2Gb of RAM, check the motherboard specification for the maximum RAM that the motherboard can support.
Your motherboards may support more RAM with a BIOS upgrade.

Is it a High Density memory? There are two different types of memory, High and Low. Low density is the universal but High density, may be cheaper but the motherboard needs to be compatible with High density memory. Although your memory fits in the slot, I think you have High density memory hence why it won't boot up and does when you remove the memory.

As long as the 512MB RAM chip is running at 133Mhz it should work, it may have compatibility issues with the other RAM in the unit. Try removing the other RAM first if it does not work after that you probably have a faulty piece of memory.

your motherboard may be experiencing compatibility issues with that memory youve jst installed. it will work for some time but when it starts to become unstable, it will restart, you have yo adjust the memory timings for that memory in BIOS.