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Lv99_Magikarp
1 Copper

PSU Upgrade for Dell inspiron 3847

hello i am currently using a dell inspiron 3847 which ive gotten a couple years back. Now that i plan to upgrade the gpu from a gt705 to a gtx1050ti,  i think i may need to upgrade the PSU as well.  Now i know that  there are other posts about this but i would like to ask if i could buy a corsair VS450W instead of the CORSAIR CS750M (which everyone is recommending) since its a little pricey for me. My current PSU(Dell PSU that came with it) is only 300W. My cpu is a core i5-4460. Thanks Smiley Happy

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2 Replies
speedstep
6 Thallium

RE: PSU Upgrade for Dell inspiron 3847

There are specific models that I have tried and they work fine.

CORSAIR CS750M works   CORSAIR CX750 DOES NOT

lower power versions like the CS550M and CS650M do not have enough 3.3v/5v combined power.

EVGA NEX 750B works fine.

Power supplies that do not have 150W combined on the 3.3V/5V rails may not EVER work or may fail. Note the power ratings on each rail
This label is from the NEX 750B1  

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

 

This is a label from a Dell 525w unit.  Note the ratings on EACH rail not just the total watts.

On many other vendors as the power goes up the 3.3V/5V rails max power GOES DOWN to 100W max.  However in the case of dell 875w unit the power goes UP to 225w on the 3.3V/5V rails.

 

This is what the NEX 750B1 looks like installed in an XPS 8500

 


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Supaaman
1 Copper

RE: PSU Upgrade for Dell inspiron 3847

What about this one? It's really cheap.

www.newegg.ca/.../Product.aspx

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