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Dell Precision 390 PSU upgrade

Some guy on the forums
By Some guy on the forums
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I recently got a dell precision 390 with a 375 Watt power supply, i want to upgrade to a 500 watt PSU, But iv'e recently found out that dell has pulled up some proprietary BS (unsurprisingly) on some of their computers by mixing around the 24 pin atx connectors on both the PSU and Motherboard,so that people have hard time looking for a replacement/upgrade,i know that a atx PSU will fit,i want to know that if i plug in standard PSU into the motherboard will it go up in flames?

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You want to swap a PSU, on a PC with a core 2 duo?

 

 

No, it's a potato. 

 

And no, if the graphics card you're putting in it, 375W isn't enough, you are VERY MUCH doing it wrong.

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2 hours ago, campy said:

The psu is atx compatible, you can plug any psu you want into it.

Had one myself 

It's ATX compatible, so you decided to downgrade the PSU...?

:)

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5 hours ago, Comic_Sans_MS said:

You want to swap a PSU, on a PC with a core 2 duo?

 

 

No, it's a potato. 

 

And no, if the graphics card you're putting in it, 375W isn't enough, you are VERY MUCH doing it wrong.

1.yes,i want to swap out the oem psu

2. i got rid of the core 2 duo and put in a core 2 extreme QX6700

3,the whole reason i want to swap it out power supply is so that i have enough power for my CPU and GPU.

 

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5 hours ago, campy said:

The psu is atx compatible, you can plug any psu you want into it.

Had one myself 

87732A81-908F-4524-BEF3-BC17983075D3-4671-0000092DC523535D.jpeg

thanks for answering my question, now i can play minesweeper at 60 FPS :D

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33 minutes ago, CarlosC said:

1.yes,i want to swap out the oem psu

2. i got rid of the core 2 duo and put in a core 2 extreme QX6700

3,the whole reason i want to swap it out power supply is so that i have enough power for my CPU and GPU.

 

You're likely going to downgrade the PSU (possibly quite significantly), and you're also likely to have plenty of power with the OEM PSU. That depends on the GPU you're planning to use. 

:)

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1 hour ago, seon123 said:

You're likely going to downgrade the PSU (possibly quite significantly), and you're also likely to have plenty of power with the OEM PSU. That depends on the GPU you're planning to use. 

im currently using a EVGA GTX 660, which needs 24 amp on th 12 volt rail, but the oem only supplies 18 amps on the 12 volt rail.

what exactly do you mean with "downgrade"

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43 minutes ago, CarlosC said:

im currently using a EVGA GTX 660, which needs 24 amp on th 12 volt rail, but the oem only supplies 18 amps on the 12 volt rail.

what exactly do you mean with "downgrade"

if the GTX 660 needs 24A on 12V, that would mean 288W, while the Spec says 140W:

https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-660/specifications

 

WHere did you get the 24A?!

"Hell is full of good meanings, but Heaven is full of good works"

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1 hour ago, Stefan Payne said:

if the GTX 660 needs 24A on 12V, that would mean 288W, while the Spec says 140W:

https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-660/specifications

 

WHere did you get the 24A?!

The card powers up but is under powered

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9 hours ago, CarlosC said:

The card powers up but is under powered

"Card powers up but is under powered"?

What do you mean by that?

 

If the PSU cannot provide enough power, it'll turn off or restart the PC.

 

If it doesn't, it's fine. And it will be fine, because a good 375W PSU is EASILY enough for a GTX 660. Look at reviews.

 

I ran a HD 7950 and FX 6300 off a (rather shitty) 380W PSU, and I can assure you, a top tier GPU and a (wannabe) 6 core CPU will draw more than your core2 quad and GTX 660.

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6 hours ago, Comic_Sans_MS said:

"Card powers up but is under powered"?

What do you mean by that?

 

If the PSU cannot provide enough power, it'll turn off or restart the PC.

 

If it doesn't, it's fine. And it will be fine, because a good 375W PSU is EASILY enough for a GTX 660. Look at reviews.

 

I ran a HD 7950 and FX 6300 off a (rather shitty) 380W PSU, and I can assure you, a top tier GPU and a (wannabe) 6 core CPU will draw more than your core2 quad and GTX 660.

so im fine with my current psu?

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1 hour ago, CarlosC said:

so im fine with my current psu?

I rather use that low wattage DELL PSU than waste money on a garbage, group regulated low quality PSU like the Thermaltake Smart SE you can see above...

 

If you replace it, look for something good. In Bronze you won't find much decent units though, most decent PSU are 80plus Gold certified.

"Hell is full of good meanings, but Heaven is full of good works"

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2 hours ago, Stefan Payne said:

I rather use that low wattage DELL PSU than waste money on a garbage, group regulated low quality PSU like the Thermaltake Smart SE you can see above...

 

If you replace it, look for something good. In Bronze you won't find much decent units though, most decent PSU are 80plus Gold certified.

i will probably use an evga brand PSU if i do decide to replace it

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34 minutes ago, CarlosC said:

i will probably use an evga brand PSU if i do decide to replace it

Brands mean nothing. Brands have good shit and bad shit. EVGA has lots of shit, and decent shit too. So what model?

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25 minutes ago, Comic_Sans_MS said:

Brands mean nothing. Brands have good shit and bad shit. EVGA has lots of shit, and decent shit too. So what model?

iv'e been eyeing this power supply for a while now

https://www.bestbuy.com/site/evga-500w-atx12v-eps12v-80-plus-bronze-power-supply-black/1017256.p?skuId=1017256

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what power supply do wold you recomend

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9 hours ago, CarlosC said:

iv'e been eyeing this power supply for a while now

https://www.bestbuy.com/site/evga-500w-atx12v-eps12v-80-plus-bronze-power-supply-black/1017256.p?skuId=1017256

Yes, exactly that was what we were talking about.

 

Again: MOST Bronze units are worse than what you have!

"Hell is full of good meanings, but Heaven is full of good works"

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7 hours ago, CarlosC said:

what power supply do wold you recomend

The one that's already in your computer...

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