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Simeonnw
1 Copper

Vostro 3900, Power Supply

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Good afternoon,

I'm looking at upgrading my PSU in my Dell vostro 3900 mini tower but I dont know if it has a specific type that I need? 

Looking at a Corsair VS450 450w PFC 80plus unit. Will this have the cables and right power supply? 

I'm handy with computer, just not PSU things. Amy and all help will be appreciated!

Can post specs later if needs be!

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savvy2
4 Beryllium

Re: Vostro 3900, Power Supply

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if it fits and plugs in to the 2 power jacks it can work.  the 450 is short and will not hit dvd drive.

if all rail AMP ratings are equal to or greater than the old one not stated.

the new PSU will have vastly more cables present even GPU aux power cables for higher power GPU.

that yours does not have. and more sata cables and well  more..

way better is the ATX like you picked,

your dell needs no adapters like other dells.

good luck.

 

I am not Dell, I am retired from this industry since 2009,
All answers for out of warranty PC desktops/Servers

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savvy2
4 Beryllium

Re: Vostro 3900, Power Supply

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if it fits and plugs in to the 2 power jacks it can work.  the 450 is short and will not hit dvd drive.

if all rail AMP ratings are equal to or greater than the old one not stated.

the new PSU will have vastly more cables present even GPU aux power cables for higher power GPU.

that yours does not have. and more sata cables and well  more..

way better is the ATX like you picked,

your dell needs no adapters like other dells.

good luck.

 

I am not Dell, I am retired from this industry since 2009,
All answers for out of warranty PC desktops/Servers

View solution in original post

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Simeonnw
1 Copper

Re: Vostro 3900, Power Supply

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Thank you for taking the time to reply sir!!

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Simeonnw
1 Copper

Re: Vostro 3900, Power Supply

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Or madam. My bad!

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MominaK
1 Copper

Re: Vostro 3900, Power Supply

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I am Using Dell Vostro core i5 and its an amazing 

<Non-public info removed>

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Simeonnw
1 Copper

Re: Vostro 3900, Power Supply

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Custom PSU or OEM?

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savvy2
4 Beryllium

Re: Vostro 3900, Power Supply

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as you may know

dell does not publish parts lists ( like HP does, full and extensive,... sad to say.... )

old PC. yours is 2014 , i guess not sold new now, IDK (never seen any dell parts sales for PSU support not new not me.)

so to learn what was offered,  you must use ebay,  you look there and I see only 1 PSU for this PC then there is only 1. offered by dell.

so you answer is right there on ebay and on completed (check too) on new PC you seen non on EBAY

but if you look at high end dells sold new,  they do offer a 2nd larger PSU, new. (800watts on some)

use EBAY.

his PC can use either. (OEM means DELL:, you do know that right?) 

I'm looking now at ebay, an shows 300 watt PSU, only for the MT.

3rd party  PSU VAST choices, near endless ATX PSU,  most work if you do not make the ERROR , using

any rail with less AMPS as the 300w DELL label clearly states. (take photo of it or write it down then shop)

ok.

this is  easy

you should be happy you dont have these, with 12v stand by PSU. and adapters needed.

3020,7020,9020 optiplex, or t1700, like me, and all converted easy.

to see if you need adaptors, (some use micro sized 24pin power  plug) just google it.

like this "Dell 3020 adapter" see them yes.

then yours see any , no. that simple or do same on ebay, all dells needing an  adapter shows hits. every one.

 

 

I am not Dell, I am retired from this industry since 2009,
All answers for out of warranty PC desktops/Servers
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kave5612
1 Copper

Re: Vostro 3900, Power Supply

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Hello, PSU is really important 

You should choose a good psu in order to maintain good performence

 

I think you should check this psu tier guide

 

Hope this will solve your problem.

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7 Thorium

Re: Vostro 3900, Power Supply

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3900 motherboard uses standard EPS 12v power supply.

Dell T1D10 MIH81R /Great Bear Vostro 3900

Dell Inspiron  3847  88DT1 looks like its the same thing.

https://www.amazon.com/gp/offer-listing/B01L7NKDZU/ref=dp_olp_0?ie=UTF8&condition=all

 

https://www.amazon.com/Dell-88DT1-Inspiron-3847-Motherboard/dp/B00R74H3OI

Therefore BARE MINIMUM Recommended supply is EVGA 700BR

https://www.bestbuy.com/site/evga-700w-atx12v-eps12v-80-plus-bronze-power-supply-dc-dc-technology-bl...


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