need help choosing a part

BulletSponge · January 28, 2020

i have been upgrading a old dell optiplex 790(not the small from factor) into a gaming pc it has a intel i7 2600 16 gigs of ram. Next im looking into getting a new graphics card for it. Do you guys know of any decent gpus that run 1080p and 80 to 120 fps and the power supply that would work with it.

mariushm · January 28, 2020

A RX 570 or RX 580 would be cheap and will work well.

Not sure if the power supply is powerful enough. Open the case and check the label, see how much power it can deliver, and see if the power supply has pci-e 8 pin connectors.

A RX 570 consumes up to around 170 watts and a RX 580 maybe goes up to 225 watts. The rest of your system will go up to around 100-125 watts, so you want a power supply that can provide at least 350-400 watts on 12v (400w / 12v = 33A)

The power supply may be proprietary, in which case adapter cables to convert a regular power supply to make it work with your motherboard probably exist on eBay and other places.

BulletSponge · January 28, 2020

2 minutes ago, mariushm said:

A RX 570 or RX 580 would be cheap and will work well.

Not sure if the power supply is powerful enough. Open the case and check the label, see how much power it can deliver, and see if the power supply has pci-e 8 pin connectors.

A RX 570 consumes up to around 170 watts and a RX 580 maybe goes up to 225 watts. The rest of your system will go up to around 100-125 watts, so you want a power supply that can provide at least 350-400 watts on 12v (400w / 12v = 33A)

The power supply may be proprietary, in which case adapter cables to convert a regular power supply to make it work with your motherboard probably exist on eBay and other places.

im going to upgrade the power supply for the gpu this power supply runs 250 watts

BulletSponge · January 28, 2020

6 minutes ago, mariushm said:

A RX 570 or RX 580 would be cheap and will work well.

Not sure if the power supply is powerful enough. Open the case and check the label, see how much power it can deliver, and see if the power supply has pci-e 8 pin connectors.

A RX 570 consumes up to around 170 watts and a RX 580 maybe goes up to 225 watts. The rest of your system will go up to around 100-125 watts, so you want a power supply that can provide at least 350-400 watts on 12v (400w / 12v = 33A)

The power supply may be proprietary, in which case adapter cables to convert a regular power supply to make it work with your motherboard probably exist on eBay and other places.

will a single fan verison of the rx 580 be ok

mariushm · January 28, 2020

Yes, sure. In the very rare situation the video card overheats, you can always install a fan on the side panel of your case, to blow air from outside the case onto the video card. (you can cut a square in the side panel if needed)

I had a single fan version of RX 570 and it worked perfectly fine. Maybe a bit noisy in very demanding games, but I didn't care, my 5.1 sound was louder than the pc fans.

Make sure the motherboard uses the standard 24 pin and 4/8 pin connectors. If it doesn't look up adapter cables to be able to use the new power supply with your motherboard.