Dear all:\n\nMy PC with Epox 8RGA+ motherboard has been working just fine until\nrecently for some reason, after a hot day of weather (maybe), the\nmotherboard simply won't post. Now I'm getting some LED code (on the\nmotherboard) C1h (Detect Memory) or C3h (Expand compressed BIOS code to\nDRAM), sometimes 29h (*). Sometimes if I turn off the switching power\nsupply for a while and if I got lucky, I "might" get the motherboard to\npost, but it's not consistent and usually it simply won't post. The\nmonitor was tested ok, the switching power supply was also tested OK (I\nthink). I'm wondering what could be the reason? I have took out all the\nPCI cards that attached to the motherboard. Although this computer is a\nbit old (bought in 2002), but I was using all quality products\n(switching power supply: Enermax 365Watt), memory is Corsair 512MB x2\n(CMS512-3500C2PT, rated at 433Mhz), and retail AMD CPU (AMD Athlon XP\n3200+ with factory cooling fan). From your experience, does this sound\nlike a memory problem, CPU problem, or motherboard problem?? I don't\nhave any spare AMD CPU or memory to switch for testing. What would be\nyour suggestion for trouble shooting?? Many many thanks!