Explanation about specs for RAM

[rohitjosh]

Hi,
I have a D845GEBV2 Intel Desktop board.
The specs say it has 2 DIMM Sockets for up to 2 GB of Double Data Rate (DDR) 333 SDRAM Memory.
Currently i have a 256 DDR RAM installed in the PC.
I wish to upgrade to 1 GB .
So what is it going to be DDR1, DDR2 , SDRAM or anything else... ???

Could some one help me out plz...

 

[kooabs03]

it will be ddr1, whose freq ranges are 266MHZ(almost extinct), 333MHZ and 400 MHz also known as PC 2100,PC2700,PC3200.