I just finished putting together an upgrade on my desktop computer at home. I installed a Intel i5-650 onto a Asus P7P55D PRO. I also put in new 4 GB DDR 3 RAM and a EVGA GTX 460 Graphics Card. I kept my previous X-Fi SoundBlaser SoundCard, NetGear wireless adapter, 2 250 GB SATA hard drives, and my DVD drive. I currently have a 550W Antec PSU, but I feel that this may no longer be adequate for my new upgrades.
I first found the error when I turned the computer on and started trying to use my wireless that could find networks but could not connect to one. I searched around for problems others had relating to this and found that most occurred because of the PSU. I pulled out my new graphics card for my old 8800GT and can connect just fine to the internet. Any suggestions on the subject would be great!
At five years old, I would have to agree the PSU lost some of it's juice, so it might not be up to the task. I think you are on the right track for a replacement PSU. I'll be interested to hear the feedback from the electronic store on their thoughts.
Thank you very much for the quick response and I will update this thread once I get back from the electronic store. It just confused me that my PSU could handle running SLI'd 8800GT's, but could not handle the new setup with the GTX 460 until I realized that the GTX increased the total wattage needed by about 60 according to Thermaltake's power supply calculator.