with it being a dell might have to get the part from dell is the system out of warranty if not sure call dell they will help you replace it if its under warranty
I called Dell to order a memory cooling fan with shroud and was told that it would cost $18 with $5 for shipping, but they would need to call me back because the fan was out of stock. The next day I got an email telling me to go to the Dell service parts ordering website but they too were out of stock.
I did a Google search and found two companies which carried the fan, one in the US and the other in the UK. Both companies wanted over $220 for the fan and shroud. I gagged at the increase in price and looked around for a new fan cooler.
I ended up using TechBargins to find me a OCZ fan and ordered it. The fan was a little hard to hook up, but I got it on tight and both fans spun up and the LEDs came on when I turned on the system.
But then the system halted during boot with an error telling me there was no cooling fan and that because I was over 4gig I needed a fan. I ended up having to knock my system down to 4 gigs in order to run.
Any ideas or work arounds? Is there a ground or a button that the system is looking for in order to tell that the cooling fan is attached? or is it a voltage issue? Maybe there is another fan I can order which won't cost me an arm or a leg?