I have a ASRock 4core 1333 Glan motherboard with 2 Kingston KRV800 D2N6/ 1 gig chips installed, they are double sided chips. My question I want to add 2 more modules in the board but they say when putting 4 modules in they all need to be single sided . Will there be a problem if i use the 2 double sided with 2 single sided modules???
If the motherboard manual cautions against mixing ram modules, then at least you know ahead of time. Most folks don't even bother to read it. Don't buy any ram you can't exchange easily. I don't see your board listed, but it may have a more specific model number here: http://www.asrock.com/mb/index.asp?s=AM2%2b