The 7810 models fit Dell VDY4N Precision T5600 T5810 T7810 685W So does Dell T5600 T5810 T7810 K61PK 825W H825EF-02 [NAME]-Chris M  would have more information. [IMAGE]
This is probably a weird question, but I have a T5810 with 425W Power Supply and I purchased a 685W from Amazon. The location of the guide slot on the 685 is slightly closer to the edge of the case so the slot does not align with the matching guide on the chassis. The photo in the listing even looks more like my 425W, so I am wondering if they sent me a 685W meant for a different series. The 685W connector has more contact points on the connector as well. I found that I can switch the top plate of the PS case and then the 685W will slide in no problem, but I am not sure if it safe to try this so I have not turned it on yet. Any ideas? [IMAGE]
Precision T5810 685W Power Supply Upgrade Does not fit