I want to upgrade my hp compaq d530 from 1.2GB to 4GB of RAM. I look at the specs: http://h18000.www1.hp.com/products/quickspecs/11632_ca/11632_ca.html and saw that I could get up to 4GB of RAM that is DDR, PC3200. So, I got 4GB of RAM. I ordered 4 of these http://www.ebay.com/itm/190398777195?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649.
When I installed all 4 I get 5 beeps and 5 red blinks which I've concluded means I'm having a memory problem. When I switch back to 1.2 GB it works fine. I was wondering, am I doing something wrong?