I'll appreciate it if anyone can help me. I'm in the process of upgrading the RAM on a PcChips M861G Motherboard from (2)x 512Mb DDR 400 to (2)x 1Gb DDR 400. The manual indicates that this is the maximum it can handle, but when i install it ,the system doesn't even pass the post beep and the monitor remains blank. i don't even have the drivers cd either. Oh! the brand of memory before, and the new ones are Markvision.