upgrade memory from 512 to 1gig ram x2

[andrew waters]

im trying to upgrade memory from 512mb each socket to 1gig ram to both..but computer will only read 1..but when i switch one back to a 512...it reads ive got 1.5 ?

 

[azzzzz529]

im trying to upgrade memory from 512mb each socket to 1gig ram to both..but computer will only read 1..but when i switch one back to a 512...it reads ive got 1.5 ?

yes sir