I don't know if this is appropriate to ask it here in superuser.
Please, just route this to appropriate stackexchange site if found unrelevant.

Here's my scenario. I have bought a new motherboard (MSI 785GT-E63). I already have an old CRT monitor connected to it.
After I install a linux OS to it, my monitor will display that it is:

• Out of frequency.
• Current frequency is 89Hz. The operating output of my monitor is (around) 60-70Hz.

I would like to get this thing work. How can I let my CRT display properly?
I was thinking of lowering down video frequency output of my motherboard, but I can't find any settings on my BIOS setup.

Additional info:

• My monitor is attached directly to the built-in video adaptor of my motherboard. (No additional video cards)
• Install of OS is complete without errors.

Please help.