I am in desperate need of a power supply with 2 main power connectors - 1x 24pin and 1x 20pin. This is for a Dell XPS 720. The system is the best I've ever run. It's years old and just barely starting to fall behind in the graphics department, so I decided to upgrade my graphics, but the power supply apparently isn't enough (750w).
I have tried Y splitters and dual PSUs but it just doesn't work... Without the exact configuration offered by my proprietary dell PSU, either a single GPU's fan will power up or nothing will pwoer up. It's so strange.
The power supply I am replacing is no longer provided by Dell. They could care less about their customers.
If anyone knows of a solution or a product that fits this description, please let me know.
The graphics I'm moving toward should be regardless, but they are dual Nvidia Geforce 9800 in sli mode. I know there is not enough power because I had to disconnect 2 of my dvd drives so that the "not enough power" warnings wouldn't show up on my desktop at startup.
I'm not sure what a 12v current rating is. The power supply has nothing more than the "DELL" logo and 8 clumsily stamped inkmarks which are completely illegible.
Maybe I need to mention the motherboard itself requires those two main power connectors. The computer will run with just the 24 pin connected, but it processes slowly and I have a feeling it's a bad idea.
A regular ATX power supply won't work. It needs two main power connectors.
I am a bit concerned about the dell power supply replacement, because the old one was always pretty inefficient. It takes in way more power than what it puts out. I don't know if that's normal, but I had thought there might be greener alternatives. The surpluss replacement from the txcess website seems like a very good buy at 60 dollars. It is an upgrade to 1000w and I was willing to pay a much higher price, so it is very lucky! I just hope it is efficient.