The crucial memory finder doesn't know the tx, only the dx.
If that's same enough, the best you can do is to buy the the 2* 2GB CT5635106 or if you have the 64-bit version of Windows the CT5306933 (DDR3 PC3-12800 • CL=11 • Unbuffered • NON-ECC • DDR3-1600 • 1.35V • upgrade for HP - Compaq Pavilion dv6-3055dx system), that they guarantee to be compatible. Why you think about memory for a Mac is unclear to me.
Don't mix with your current RAM, just replace all.
I have HP pavilion Dv6 3055tx laptop. My ram is not working properly so i want to upgrade it with 4GB ram. the ram i got from HP is having specification "ddr3 pc3 10600 sodimm" but many website claims that it should have "ddr3 pc3 8500 sodimm".
i have two question
1. which ram i should perches pc3 10600 or pc3 8500?
2. if i have to perches "ddr3 pc3 8500 sodimm" then does "Crucial 4GB DDR3 1066 MT/s PC3-8500 204-Pin Memory for Mac" is compatible for my system?