[SOLVED] Pc booting but not posting

[Raptor867]

I’ve been using my custom built for about 2 weeks now, everything has been working fine. But today I start it all the fans are spinning but no post screen, I have a yellow light on the board which links with memory but I have done nothing to system involving memory. Any suggestions on how to get around this ???????

 

[kaehligj]

The yellow ram light is the bios testing the ram to find optimum settings on the ram.
One reason could be an incompatible ram module.
Or you simply need to re-seat the ram in the sockets.