Bought 512mb of Azenram ram, but my computer still says it only has 512MB still

[cyrus1911]

hello, i just bought a 512MB 400MHz DDR Azenram stick of ram and put it in the empty slot in my motherboard.. booted up and my properties on my computer still says 512MB of ram.

p4 2.67 GHZ Gateway computer, but I'm unsure of the model.

any idea's on how to get my computer to recognize this ram?

 

[iss]

it would help if you listed your hardware spec's particularly your Motherboard make and model. if you dont know what it is download SIW and it will tell you.

http://www3.sympatico.ca/gtopala/

also what kind of ram and what speed is the ram you allready have?

 

[cyrus1911]

oh and the ram is for PC3200 motherboards.. mine is PC2100, i think this is the problem, and they arent compatible?

edit: checking SiW now, i have 512 pc2100 233mhz Ram installed right now

 

[cyrus1911]

http://www.unknown-insanity.com/uploader/files/46/mbinfo.JPG

motherboard info

 

[iss]

yes, that is your problem, 845 chipsets do not support PC3200.