Don't know where to put this but I need help

[MKnance]

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CPU Z Sensor log the highest
GPU Core Clock MHZ 650.0 GPU Memory Clock MHZ 449.7 GPU Temperature Celcius 65.0 Fan Speed 30%
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Furmark SCORE:127 points (2 FPS, 60000 ms)
Resolution: 1280x720 (FS) - AA:0 samples
Max GPU Temp: 66°C
FPS: min:2, max:4, avg:2 - OPTIONS: DynBkg


Can someone please help me I get random lockups now they have been getting worse its usually when im in the middle of something and sometimes the display driver will crash and then recover then lines will appear across the screen that taking in a screenshot aint noticeable the lines have become rarer to see but the lockups have become frequent and random i was playing dizzle just today i installed it then while in full screen and windowed version the display driver crashed about 5 or 7 times and then lines appeared across the screen then the computer locked up and i had to turn off by the power button please someone help me figure out whats causing this im tired of it and i just want to find the issue and figure out when i can fix it before it gets worse

[nuninho1980]

HD 5450 got crash because it's 4-5 years old. Therefore, you may get RMA.

If the warranty is expired then you may bake to fix HD 5450 "died" ---> but... FIRST must watch tutorial!

I have remembered that I can bake to fix 8800 GTS 640 in dec 2009.