2X256MB RAM or 512MB RAM???

[Mahesh Babu]

Sorry for all the confusion created by me

U shud go for 1 x 512MB RAM as your motherboard does not support dual channel.

Now i will tell u about Dual channel effect.

If u have a processor with with 400Mhz FSB and lets say u have got one stick of 256MB(400Mhz) RAM ,then the processor will run at 200MHz FSB only.If u add one more similar 256MB(400Mhz) RAM then your processor will run at 400Mhz FSB thus u will get large peroformance boost if u utilise dual channel.

Sorry that u dont have dual channel mobo.

 

[Aseem Nasnodkar]

so you mean i should add 2x256MB RAM? I mean only then the processor becomes 400MHz?
Or you said the opposite dude?

 

[Mahesh Babu]

Since your MOBO doesnt support dual channel just buy 1 piece of 512MB RAM(400Mhz) .But u will not be able to utilize all the bandwidth.i.e. your processor will run at 200Mhz.To double the bandwidth u must utilise dual channel which u don't have.

 

[Aseem Nasnodkar]

my mobo support only upto 266MHz.
Tht means it will wek at 133?

 

[Mahesh Babu]

yes
You can check the FSB in the BIOS

 

[mohit]

@Aseem Nasnodkar
hey which procc are u using ? what is the fsb of your procc ? if u r using a 400 mhz pentium 4 and planning to buy ddr400 ram then no need to go for dual channel.

if u r using a 533/800 mhz procc then dual channel will be of help as it will increase the system memory's peak bandwidth to be equal or greater than the processor's peak bandwidth. it is always advisable to go for system memory having peak bandiwdth greater than or equal to the procc's peak bandwidth as there will be no bottlenecks then.

check these links out to clear all your doubts,
*www.kingston.com/newtech/MKF_520DDRWhitepaper.pdf
*www.pctechguide.com/03memory_Dual-channel_DDR.htm

 

[Mahesh Babu]

Aseem can u tell me what is your current FSB in BIOS?
and also do tell your processor FSB,RAM freequency

 

[Aseem Nasnodkar]

MY processor FSB is 100MHz and is the same set in BIOS.
RAM frequency is 266MHz......... working at 133MHz since no dual channel support by mobo.

 

[Mahesh Babu]

Yes try to increase the FSB in the BIOS if there is an option.U will get large performance boost.

 

[Aseem Nasnodkar]

My mobo manual sez that the FSB can be increased upto 533MHz.

Mine is just 100MHz. How much do I inc it?

 

[Mahesh Babu]

It will display the options like 100Mhz,133Mhz,166Mhz, etc.. If there is no option then u cant do anything.Then u have to use overclocking utilities to increase FSB .Or else upgrade to a dual channel motherboard with two sticks of 400Mhz RAM and configure RAM in dual channel.

 

[aditya169]

how do i know at what mhz is my ram it is 512 mb on 915 m.b

 

[Aseem Nasnodkar]

try cpu-z

 

[Deleted member 5901]

try cpu-z

Thats Right !!! CPU-Z Is Gr8 !!!


Cheers !!!

 

[Aseem Nasnodkar]

Even Everest rocks! Try it. It gives u the most complete sytem info.