Question about Compaq Presario SR1120NX 2.66GHZ Tower w/ CD-RW (2018267632) PC Desktop
What is the difference between high density and low densty RAM?
2) How can i check speed of computer when i incresed RAM? can i use CPU-Z for this. Does high DRAM frequency means more faster speed?
3) My computer has one 4 slots each can go with 1 GB PC3200 RAM with maximum capacity of 4 GB. My computer has 2 slots in black color and 2 slots in black color. What is the difference between these 2 colors slots.
4) Are 1 sided RAM is compatible with 2 Sided or double density RAM or if i rephrase does 8chip PC3200 DDR400 is compatible with 16chips PC3200 DDR400
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......
Posted on Dec 28, 2008
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Posted on Jan 02, 2017
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Nov 25, 2011 | Computers & Internet
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.
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