Hi RandyL
Thanks for replying, im kinda thinking of another stick of RAM from crucial might be the best thing to do, as you stated its not worth risking my pc over 512 stick of RAM, ive never done a BIOS update before, although im confident i could do it as im not to bad with pc's, its just that chance if it goes wrong.
I just can't understand how they both work on their own but will not run together, the min the 1gig gets put in the 512 becomes unreadable.
And crucial saying my motherboard does not support PC2-4200, when that's the stick that it come brand new with from the shop so it must be supported, i just dont get it lol.
Hopefully someone will be able to shed a bit of light on this.
Again thanks for your help.
Regards
Newgster