The ram depends on what your motherboard's compatible with. It's probably one of the regular DDR types. Between something like PC2700 and PC3200, choose 2700 if you're not sure. These things are backward compatible, and there's not much speed difference anyway.
Not sure about the monitor. How can a monitor do something like that? Are you sure it's the monitor's fault? Maybe it's just the graphics card causing error when there's *any* monitor plugged in... Just a guess though...
I have the T6212, I added a 18" Microtek Flat Screen and every time I turn the desktop on the computer will not boot up all the way. It stops at the big "E". The only way that I can get it boot all the way is by unplugging the monitor, booting the computer, and then plug the monitor back in a few moments later.
Also, I want to upgrade my RAM. Any easy and affordable suggestions. I'm not good with computer, just want all my programs to be able to run quicker when several of them are on. Also, Is it hard to install?
Thanks everybody ahead of time for your help.

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