MY PC HPCL BOUGHT IN 2007 SYSTEM OPENS PERFECTLY BUT AFTER SOME TIME COLOURS OF

americanbrian

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Graphics RAM....

the ram chips on the GPU are overheating. Buy some heatsinks specifically for this purpose.

If your GPU cooler fits over the ram chips try new thermal pads to mate them.

Failing that increase the GPU fan speed to 100% using an overclocking tool.

If that STILL doesn't solve the problem, underclock the graphics RAM to BELOW stock levels.