Hello, I have an HP DV2715nr and when I turn it on, it turns right of, some times it stays on for 1 second or 3 or even 5, but it never goes to bios unless it turns on right so there's nothing i can do software wise until it works. The fan always turns on and the lights, and the light to the hard drive. It does the same thing without the hard drive and it never goes into bios. It will eventually turn on right and when it does, it runs fine and never turns off unexpectedly. The only error I get is when I run the resource and performance monitor: The devise, adfs, is reporting "tv_ConfigMgrErr24". This device will not be available until the issue is resolved. The Plug and Play Id for the devise is ROOT\LEGACY_ADFS\0000. The last thing i remember doing when it was working correctly was deleting my XP partition from my Win7/XP dual boot.