..i have a 450w mercury psu >65% efficiency ... two weeks ago i faced a problem that...... my pc used to shut down suddenly while browsing the the internet or playing games...this happened 3 to 4 times in 2 days....i was wondering whether there was a problem with my psu or was it just because of excess use???.......i am also planning to .buy an hd6670 ddr5....will this heat up my pc and damage other components?? ihave.... amd phenom xII 3.2ghz dual core processor and 2gb ram
More aboutwill radeon 6670 watts
A 400W power supply is recommended. So you need at least that and more for you graphics card and other components.
If it's old then you could be talking as little as 200 watts!
For gods sake, don't skimp on your psu. I Replacement it cause if it does you can very easily kiss your whole rig goodbye. It's your heart.. Look after it!
6670 consumes 60W. Can run on every PSU. Generally, is good to have a PSU that is of good quality and at least 80% efficient.