Nothing appears on monitor after RAM installed

kaoscracker

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Jul 2, 2009
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now i have a HP Pavilion a1240n with 1 gig already installed, i just got 2 sticks of memory(2 gig each) and once i have one of them in in any memory slot, turn the computer on and nothing goes to the monitor, when i take it out, it works fine

i read it its pc2-5300 and its compatible with my computer, anone know how to get this to work

computer specs

intel pentium 4 processor
1.0 GB memory(512 each)
200GB hard drive
nvidia 6200 video card