Switch off the PC before you open it up. (At the mains power, not just Windows shutdown or the power button.
Try one RAM module in slot 1. Reset CMOS (instructions in your motherboard manual) Boot up and see if it starts.
If not, repeat the procedure using the other module. Make sure both times that the module is firmly and completely seated in the RAM slot. Make sure also that your video card is firmly and completely seated in its slot.
If neither module gives success, take it to a technician for testing. Either your RAM or the motherboard could be damaged.
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Grandad
Offline 3,826 posts
since Mar 2004