First of all welcome to the Evga forums. The error codes can be found in your Motherboard manual. If you don't have one, then you can view it in PDF format. Use Adobe to see it. Here's the link: http://www.evga.com/support/manuals/files/132-CK-NF78.pdf.  It starts on page 74. The code 25 is a (Shadow V-Bios) error. It is most likely a bad Video card, or it could be the Motherboard. Try reseating the card first. If you still get the error, then try a different card. You can also try taking the Motherboard battery out for at least 10 minutes, put it back in, then do a Bios reset. After all that, if it still gives you that error, you will either have to RMA the Video card or the Motherboard, depending on the conclusion of your troubleshooting. Please post back here again after you have done these things, and let us here know what happened. Good luck!
 

Thank you x-ray man.....I bought a new evga geforce 260 graphics card and installed it....made no difference....would not post. Removed the battery for about 20 min and then reinstalled still would not post. Submitted for an reman motherboard. After speaking with the technician from evga he also said it was the board and is sending me another one. I appreciate your help very much.....Thank you !