very strange screen, what happened to my computer

hello,

Does anyone have an idea what happened to my computer. ik get all kinds of strange movement on my screen. Black and white lines dots, cubes.
all started after i had installed 2 extra fans inside my box. Tried to overclock from 2.66Gh to 3.2 to see the difference in temperature.

I oc'd my 2180 to 2.66 Gh without problems ran test at 3.2Ghz but decided not to run at 3.2 because of temps. So after install of 2 additional fans ( 12 cm and 7 cm connected to mainbord. Put it on 10 x 320 ran never could run prime 95 cause after trying to boot and fail ( had to change voltage ) inmediately started to get strage screens, almost impossible to read anything hell it is even strage i could poste this message. So if i have al ot of mistakes in the text sorry but i see only half of it

Sounds like you found the limits of your power supply it can only feed so much power and when you overclock you are asking it for more power.
What you have been experiancing is called artifacing i think this normally happens when you have overclocked your graphics card too far they loose stability in the core are only rated to a certain speed and are usually not gauranteed to overclock.
I would put every thing back to stock settings and start again slowley 2.66-3.2 is one hell of a jump and you shouldnt do it that quickly just a few Mhz at a time untill it starts playing up then back off a few Mhz and leave it there.
Post what is in your rig including power supply and we may be able to advise you better.
Mactronix

What happend? My linux screen has gotten huge...how do I fix this problem?

Are you serious?