Hi i have to do my project and need to install software which will require 1gb ram to run the simulations. i have 512 mb sd ram which is not working with other ram so i need another 512 mb sd ram. also i have 4 different sd ram which i tried but not working with my 512 mb else they are working fine (no doubt about it details given as under sd-ram 1. kingston 256 mb pc133 19.99 2. samsung 128 mb pc133 9.99 3. samsung 128 mb pc133 9.99 total of 512 mb ram 39.99 also i have another inynix 256 mb sd-ram which is faulty and will hang the computer after a while. i can give it to you if you buy all the ram with me.arshad at or cheers