For those who run across this situation, don't add to the land fill if you can fix it. The majority of the problems with the PA-225 and 226's, is the DC plug connector that connects to the MX-1. That plug's connections are 4 pins and one thru-hole terminal that's meant for the center wire, ground line connected to the plugs metal jacket, which is the ground for both 5 and 12 volt lines. The problem is that during assembly, they miss getting the wire through the eyelet of the ground terminal and solder it anyway, which usually creates an intermittent or permanent disconnection later. Although this can happen for the pins, the main culprit is this ground connection. When this becomes disconnected, the LED will Blink indicating a problem. Normally the LED is a solid orange. The plug's molding can be cut (spit in half) and slid back to expose the plugs ground terminal. The inside molding can be cut/chipped away in if need be to expose the ground line. You might need a really good mag lens to show the fault. I took some pictures and created a pdf on what I found but haven't posted any where. If all else fails, you can order one from Antec. However, beware that the connector used on the replacements will most likely not be the same as the originals. So, if your supply is really DEAD, keep it for the 4 pin male connector, and check out this Antec Online Store for their replacement. Also be aware that I've discovered that the original supplies, two of the pins are used as one 12v supply, and the other two pins are the 5 volt supply with the plugs metal jacket as the ground for both. The original supply's labeling is incorrectly pictures as each pin pair being both positive and negative, with the metal jacket not connected. Make sure that this your next supply does not ground to any of these pins, only to the jacket. The motherboard inside the MX1 connects each pin pair together for a positive terminal only, therefore, if you get a supply incorrectly matching, you can toast a new supply. If you look at the male connector from the original supply with the plastic key "top". The left pin pair is 12VDC, and the right pair is 5VDC with the metal jacket as ground for both. Good luck.