Question regarding RAm

zheshi SG

My motherboard is using 2 256 DDR2 Ram. Thinking of upgrading it. is it advisable to put 1 512mb and 1 256mb together, or it must be both the same mb? Cause if that the case than i have sell away my 2 256 and get 2 512 one.

I'm using a dual-ram motherboard so it better that i put 2 ram rather than one.

StarPuppy SG

what is your motherboard model?

zheshi SG

MSI 915P/G Neo 2

ndmmxiaomayi SG

You can put in 1 512MB and 1 256MB of RAM.

However, the RAM must of the same type (which is DDR2).

I don't get what you meant by dual-ram. Can you explain it?

pipipopo SG

SDram- the module processess the memory bits on the rise or on the fall of one clock sycle.
DDR (double data rate) - the module processess the memory bits on both the rise and fall of one clock cycle and so the term 'double data rate'.
dual channel DDR - the module processes data similar to DDR but has been split into 2 physical channels for even faster memory processing but requires timing synchronization and traffic control. in order to have dual channel ddr, the 2 (almost in 2s or 4s etc) memory modules must be of the same capacity and latency.

for the topic starter please check your computer maotherboard user manual for the random access memory slots details. it will tell you which slots to use for dual channel DDR and which recomended slots to place the modules for DDR only.

it can be like this for dual channel DDR2

slot 1- one stick of 256MB
slot 2- empty
slot 3- one stick of 256MB
slot 4- empty
config- 512MB of dual ch ddr

or

slot 1- one stick of 512MB
slot 2- empty
slot 3- one stick of 512MB
slot 4- empty
config- 1gig of dual ch ddr

it can also be like this for single channel DDR2

slot 1- one stick of 256MB
slot 2- one stick of 512MB
slot 3- empty
slot 4- empty
config- 768MB of ddr

or

slot 1- one stick of 512MB
slot 2- one stick of 512MB
slot 3- empty
slot 4- empty
config- 1gig of ddr

best consult yr mobo user manual

Firstz SG

Errm… how to check which type of ram my com is using?

pipipopo SG

It helps if you can post your computer specs or models or manufacturer name so we can giv u the direct answer.

if:

1) your computer OEM (got brand 1) you can call tech support for answer. otherwise you can go to the computer manufacturer's websitesite and check the model number for the ram type/ spedd used. initial bootup stage the ram type can be found in the bios settings. if your warranty expired and u r confident enough open the PC case and look at the labels of the ram modules installed. take note of the part number (SKU) and check it over at the ram manufacturer's website.

2) your computer build by someone else e.g at sim lim you can call them or check wif them.

3) you DIY u should know better.

if you are using a desktop computer most probably your ram is anywhere between SDram (older P3 PC), DDR (P4 or AMD), DDR2 (newer P4s and AMD with duo/dual core processors).

if you are using server boards or a server computer most probably your ram are registered and/ or with ECC.

if you happened to be using a nnotebook or a mini-ATX motherboard most probably the standards with be similar to the desktop computer but the form factor different, smaller called soDimm.

ndmmxiaomayi SG

http://www.cpuid.com/download/cpu-z-137.zip

Download CPU-Z. Extract it and double click on cpuz.exe

Select the Memory tab. Under General, you will see Type, Size, Channels, etc.

Look at Type. That is the type of RAM your computer is using.

pipipopo SG

cpuZ should do the job fine. I only use it to determine the type of processor, core name and L2 cache i am using otherwise i usually know all the components in my PC since i DIY.

hobochua SG

Thanks for the software is very useful man…thanks man