[NAME]  Look at the shape of the slot in the top of the original power supply. If its not the sameas 5810  then 5810 psu wont physically go into your case. There are 2 types one with square edges and one with a round channel. You will have to replace the power distribution board and possibly several internal cables. I tend to order the power board with ALL cables attached. [IMAGE]M6NP2  
Hi, Is it possible to replace a standard Dell 625W T3610 power supply with parts from Dell Precision 5810, precisely W1FJK or RHHKV and connect it to the board through an M6NP2 power distribution card?  I am trying to install a card with 6 and 8 pins on the card so I need two power sources from the power supply. Thanks
Dell T3610 compatible power supply and power distribution card