Hello i have been trying to find out what is wrong since my video cardhas been a little slow lately and i think i know the problem but i want to confirm it. My Psu 5v has only gone to about 3.5 and my 12v hasnt even passed 1 it is around .56 i tested with 2 programs and it came up the same is there anyway for sure i can be certain the psu is almost dead ?
Those voltages are obviously wrong. If your 12 volt output were much less than about 11 volts, your system wouldn't boot.
Simple way to check the 5 and 12 volt lines is to measure at one of molex (IDE drive) connectors. Borrow a meter and measure - red to black should be 4.75 - 5.25 volts and yellow to black should be 11.4 - 12.6 volts to meet specifications.