The 300w psu (L300EBS-00 etc.) is a proprietary Dell psu that has no known third party adapter on the market yet.  It is currently obligatory to use Dell psu for 3910.  Dell also makes 8+4+4 pin psu for other desktop model (Optiplex 7000/XPS 8950), which share 8+4 pin with 3910.  There is currently no evidence whether or not those 8+4+4 pin works for 3910.  In addition Dell makes 8+4 pin psu for Inspiron 3020 (available on Dell au site, not yet on Dell US site), which is definitely c/w 3910.  I would say the best option now is to wait for stock availability, or order overseas.  The 300w psu (DP/N T7X04) was available recently on eBay US shipping (a compatible model on eBay) but sold out.  A compatible model is available international shipping, P/N : V0YN7.  There is a chance it may be back in US stock at some time. sample photo of 300w psu H300EBS-00 (Chicony) [IMAGE]  
Hi All, I'd like to add a graphic to my current Dell Inspiron 3910 desktop for video editing, but don't know which one is fit? Especially the power consumption for not overloading. Could any one provide suggestion to me as I don't know much about computer, here is my PC spec. CPU: i3-12100 HDD: SATA 7200rpm 500gb RAM: 1 x 8gb DDR4 Power supply: 180W Dell service manual said GT 730 GDDR5 is one of the GPU Discrete option. But I found this card may draw around 40W Max (is there max limit for the card?). Not sure whether my current Power Supply enough or not? And I found another Low Profile option is Radeon HD5450, it said around 20W, is it a good fit? Thanks for any help and advise.
Inspiron 3910, video card upgrade? #2