recently my computer completely shut off and there was a green blinking led light on the back next to where the power cord is plugged into the back of the CPU, i have a compaq presario sr1630nx, i was so close to junk it after i searched the internet for help, funny how hp did not have any support information on their website relating to troubleshooting this problem. Anyhow i assumed that the power supply box in the unit had gone bad, so i decided to take a chance and search for the model number, and BAM! this site showed up, i order the part and in less than 5 days i got it, these people are amazing, the price was great for the unit i think like 28 buck and change, i installed it and my desktop worked perfectly like the problem never existed, and also the part i ordered matched exactly the part that needed to be replaced, all the wires and everything! would highly recommend these people!!! Thanks Jonathon from NJ