Question Install new PSU (And GPU) in Optiplex 9020 mini tower

Akerhage

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Aug 23, 2013
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Hi,

So Im having a Dell Optiplex 9020 Mini Tower. i7 4790, 32gb ram, 256GB SSD, 1TB HDD. I have installed a GTX 1050TI now, but thinking about to upgrade to something like GTX 1660 SUPER or some other card. The PSU in the system now are only 290W.

If I want to change the PSU, I saw that I need to buy an 8pin-to-24-pin-adapter. Like this one:
https://www.amazon.com/Eyeboot-8-Pin-Supply-Adapter-Motherboards/dp/B01A210HKO

or this one from AliExpress which is way cheaper:
https://www.aliexpress.com/item/4000021810584.html?spm=a2g0o.productlist.0.0.4a30589e0ipHHR&algo_pvid=e106e40f-9951-475e-b162-2800fef6c70c&algo_expid=e106e40f-9951-475e-b162-2800fef6c70c-3&btsid=b1fb524d-1153-47c0-a57c-832cf59f7151&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_52

Is that all I need? Will any PSU work from there? The motherboard Dell is called 06X1TJ.

Picture from inside chassi:


Is there any specific size I need to look at if buying a new PSU for this chassi? If so, can anyone give me some tips.
Im guessing a 500W or 600W will be enough.

And also, is it worth upgrading this PC with a new graphic card? Or am I better just opening my wallet to buy all new?
 
Last edited:

Akerhage

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Thanks, so no other things needed after this? Just the adapter and a compatible PSU?

One more question, with the 24PIN. do I need to use the 4PIN for the CPU Voltage also?

@jojesa - If going any further with a 750W, (havent really descided yet which graphic card). Can you please give a tips for a PSU 750W also. Also I think your second link was broken?
 
Thanks, so no other things needed after this? Just the adapter and a compatible PSU?
Yes, you need a PSU and the 24-pin to 8-pin adapter.

One more question, with the 24PIN. do I need to use the 4PIN for the CPU Voltage also?
The PSU comes with the 4-pin CPU power connector, so make sure to connected it to the motherboard. You might encounter a PSU with a 8-pin CPU connector instead of the 4-pin, don't worry it can be snapped in 2x 4-pins.

If going any further with a 750W, (havent really descided yet which graphic card). Can you please give a tips for a PSU 750W also. Also I think your second link was broken?
You do not need to go further than a 600W PSU, even a 550W unit has enough power to spare.
Just make sure to get a reliable unit, that it is compatible (it fits).
You could even get a semi-modular PSU, so you only connect the cables you will need.
CORSAIR CX Series CX550
https://www.amazon.com/dp/B01MRW2K79

Seasonic S12III 550 SSR-550GB3
https://www.amazon.com/dp/B07MWGZT5N

CORSAIR CX-M Series CX550M (semi-modular)
https://www.amazon.com/dp/B01B72W0A2
 
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You could use either a Corsair CX600 or EVGA 600W PSU.
See the link at the end of my signature.

I'd recommend against the EVGA. The later Corsair CX models are decent.

Honestly, a high quality 450W would be plenty for your system and your planned card. Say, for example, a Seasonic Focus or Prime, or one of the Corsair TX, RM, RMx, RMi, HX, HXi, AX or AXi units.
 
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Akerhage

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Aug 23, 2013
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See the link at the end of my signature.

I'd recommend against the EVGA. The later Corsair CX models are decent.

Honestly, a high quality 450W would be plenty for your system and your planned card. Say, for example, a Seasonic Focus or Prime, or one of the Corsair TX, RM, RMx, RMi, HX, HXi, AX or AXi units.
Thanks, I will check out the Corsair CX models, I do not know anything about all those models there, but will try to take a look if I can find something at a good price :)

Maybe this one will work? that one costs 70Euro in Sweden.

https://www.komplett.se/product/876231/datorutrustning/datorkomponenter/nataggregat/nataggregat/corsair-cx450m-450w-psu
 

Akerhage

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Aug 23, 2013
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Yes, you need a PSU and the 24-pin to 8-pin adapter.


The PSU comes with the 4-pin CPU power connector, so make sure to connected it to the motherboard. You might encounter a PSU with a 8-pin CPU connector instead of the 4-pin, don't worry it can be snapped in 2x 4-pins.


You do not need to go further than a 600W PSU, even a 550W unit has enough power to spare.
Just make sure to get a reliable unit, that it is compatible (it fits).
You could even get a semi-modular PSU, so you only connect the cables you will need.
CORSAIR CX Series CX550
https://www.amazon.com/dp/B01MRW2K79

Seasonic S12III 550 SSR-550GB3
https://www.amazon.com/dp/B07MWGZT5N

CORSAIR CX-M Series CX550M (semi-modular)
https://www.amazon.com/dp/B01B72W0A2
thanks!
 
Thanks, I will check out the Corsair CX models, I do not know anything about all those models there, but will try to take a look if I can find something at a good price :)

Maybe this one will work? that one costs 70Euro in Sweden.

https://www.komplett.se/product/876231/datorutrustning/datorkomponenter/nataggregat/nataggregat/corsair-cx450m-450w-psu
It will work, and is usable, though I'd personally be more comfortable with the TX model, or one of the Seasonics.

However, those two that I just mentioned would make more sense if you planned to carry them over to a new system when you eventually upgrade.
 
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Some be quiet models are good, some are not - I wasn't able to find a definitive answer on this one.

However, I would advise against it. Reliable or not, when it's used, that, in theory, can bring up other potential problems.

The Power Supply is the one thing you want to be sure of. It is the life-blood of the rest of your system. A poor quality power supply can fail, and take out other expensive PC components with it. In the very worst cases, a low quality PSU that fails can cause a fire.

There are definitely other parts where I think cost and savings should be considered. The PSU, however, is the one where the price should be a secondary concern, and reliability and safety the primary concern.
 

Remeca

Prominent
Aug 30, 2019
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No. See my thread here for details about exactly what you're doing.


Do not go for a cheapo 8 pin adapter, get the highest rated one on Amazon.
 
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