i have a biostar 6100m7 borad with sempron3000 cpu and kinston 1gig memory chip. borad light up and key borad flash theri all three new parts but i have no video. i would be glad for some advice

-disconnect power plug from PSU. Do a clear CMOS using jumper on motherboard. See motherboard manual.

If it does not help, try with a minimal build. Motherboard, CPU+HSF, RAM stick. No drives+ USB stuff connected from motherboard.

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Are you using the onboard gpu or a dedicated gpu?

If you are using a seperate graphics card then you will need to connect the monitor cable to the onboard gpu and then go into the bios and disable the onboard gpu.

Then connect you monitor cable back up to your dedicated gpu and you should be good to go.