PSU upgrade for Inspiron 3847

The EVGA 430W unit has LESS POWER than the Dell 305W unit.  

The 450B1 only has 120W on this railset.

POWER Supplies are not a single rating of watts with 1 Rail.

You must have Combined 150W on the 3.3v/5v rails and 25 Amps on each of those rails.

The EVGA NEX 750B1 has this the B2 and G2 models do not.

• +3.3V@25A, +5V@25A, +12V1@20A, +12V2@20A, +12V3@20A, +12V4@20A,+5VSB@3A, -12V@0.8A

https://www.newegg.com/Product/Product.aspx?Item=N82E16817438025