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January 30th, 2021 18:00

upgrading vostro 3668

hello i got vostro 3668 and it is very bad in gaming so i am gonna buy a gtx 1660 super and maybe a power supply and i don't know what else the gtx 1660 super it takes 125watts while the available psu is 240watts or must i buy a  new one ? and is there any problem occurs after putting gtx 1660 super while i have 240watts ? 

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January 30th, 2021 18:00

240W psu is too weak for 1660 super.  recommended psu is 450W. 3668 uses proprietary TFX psu with 6 pin ATX for motherboard. You can get a 460W to 500 W Dell psu for G5 5090 or XPS 8940.

https://www.365powersupply.com/product/92wnc-092wnc-460w-psu-for-dell-g5-5090-xps-8940-l460wbm-00/

redxps630_0-1612060312766.jpeg

 

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January 30th, 2021 19:00

Vostro 3668 motherboard 6 pin has same pinout as optiplex 3050 etc.  Optiplex 3050 psu interchangeable with G5 5090 and XPS 8940.

https://www.amazon.com/COMeap-Power-Adapter-Motherboard-13-3-inch/dp/B08M5BZ6P8

https://www.alibaba.com/product-detail/460W-Power-Supply-For-G5-Inspiron_1600058389319.html

 

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February 6th, 2021 18:00

Using on line psu calculator estimate psu needs to be at least 320-350W.

February 6th, 2021 18:00

why 240w is too weak but gtx 1660 super dual fan pny is 125w!!!

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February 6th, 2021 18:00

I think you may be confusing system psu rating with gpu TDP. 1660 super pny TDP is 125w, but system psu also needs to power motherboard cpu etc.

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July 23rd, 2023 05:00

Is it impossible to replace the PSU with something else than from the Dell brand it self?

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