Don't panic when your computer won't power on. This comprehensive guide provides expert tips and tricks to troubleshoot the issue.

Basically, the PSU won't even turn it's fan on when you press power.<BR><BR>The 4870x2 works in my Mac Pro (vista in boot camp), even though I had to run a cable from my optical bay to get one of ...

If your computer won't boot after enabling XMP, first ensure your motherboard supports XMP first. Working solutions have been listed here.