W2686 ram high density

http://www.asrock.com/mb/VIA/P4VM8/

SPECS OF THE MOTHERBOARD..

you need to check with board to fine what ram works with first.i use what they say to use so no problems later and save money as well ok jim

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.

I'll advise you not to use high density ram with the A7V8X-X MB. Read the link provided for more info;
http://www.1ststop.net/1stStop_2.htm

Cheers'
Mike

Look at the sticks of RAM -- "high" density means fewer chips on each side of the stick, i.e., newer technology and production methods have packed more bits into each chip, while "low" density usually means 8 chips/side, using older RAM chips.

Older motherboards do not expect to find "high" density RAM, and typically will only detect 1/4 or 1/2 of the RAM on the stick.

If you buy a new motherboard, it will support BOTH densities.

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.

The last thing i can see being a problem is that you may have bought high densiy ram and the computer can not take that. High density is lets say 16 Mb of ram on 8 chips, Where as low density will have 16 chips for 16 Megs of ram. It gets complicated but this is the best way I can describe this. Most computers cannot take high density.

Do you know what kind you got?

If you are referring to the ASROCK mobo then it will work on the high density although not as good as with the low density but it will nontheless work.

Solution:



i)  LOW DENSITY modules have 100% compatiility with ALL systems and ALL chipsets.
    HIGH DENSITY modules only have 10% compatibility

    here compatablity means LOW DENSITY RAM are accepted by all system(100%)  or any make           system.. HIGH DENSITY RAM are accepted by 10% by only some system or computers...


ii) in order to check system performance or amount of Computer RAM usage press the ctrl+alt+del
   simultaneously a new window(window task manager) will appear showing:

    CPU usage: showing the amount of CPU or processor utilized at that particular time.
    PF usage: showing the amount of RAM memory utilized at that particular time.
    Physical Memory: showing Total RAM Memory, Available Ram memory....

iii) baiscally they are two types of RAM they are:

    DDR1:which is older one supported by older system  or older mother boards which is costlier
    DDR2: which is latest one supported by all new system or new mother boards which is less                         costlier

    DDR: double data rated ram......which will send data at a double rate compared to SD RAM

iii) here color doesnt matter, these slots either support DDR1 or DDR2 but not both at a time
    
    DDR1 has 184 pins or gold plated pinssss... on the edge of the RAM
    DDR2 has 240 pins 

    so difference doesnot allow DDR2 to placed in DDR1 motherboards or vice versa...

iv) it does have anything to do with no of chips on the RAM but they only differ whether it is DDR1 OR DDR 2(DDR2 are much faster than DDR1)

NOTE: whatever may the the RAM, each RAM has FSB(called Frequency...) which determines the frequency of rate at which data is tranferred from RAM to processor(CPU)  usually in MHZ such as FSB 300, 400, 200 , 333...................

more the FSB the faster data is transferred to the processor(CPU)

dont worry even RAM with less FSB's work well with the processor....having 1 GB RAM or 2 GB RAM is engouh, it only matters with the speed of CPU ... but not RAM......
    

    
                                         

Hi this problem has arisen on both desktops as well as laptops, the reason for it is quite simple. a lot of the RAM available on the market now is HIGH DENSITY RAM and unless your satellite is specificaly designed to run high density RAM it will not recognize it.
You will find all the major RAM brands are low density and will work fine. A brand like Kingston is an ideal option.
Regards mistyman