Ram Upgaradation

[chinna872]

Hello,
I am currently having 2gb Ram 1066mhz and i want to upgrade it to 4Gb ? is there any issue if i use two 2GB rams with differnet ram speeds ,
1) 1066mhz ram
2) 1333mhz ram is there any issue with it

 

[akxpckwb]

The only issue is that the faster ram will not run at full speed. It will be slowed down to match the slower one.