Re: RX 580 SAPPHIRE NITRO+ undervolting for 400w psu (2024)

Sapphire recommends a minimum PSU of 500 Watts for your GPU card which means your PSU is about 100 watts weaker than it should be.

I suggest you just upgrade your PSU to a metal rated PSU to at least 850 Watts. This will also give you some leeway in the future if you decide to upgrade your GPU or CPU to a more powerful version.

From this PSU tech site: https://www.cgdirector.com/psu-too-weak-for-pc/

What Happens If Your PSU Is Too Weak For Your GPU?

If your PSU is too weak for your GPU, a few different things might happen.

First and foremost, you may just find yourself unable to fully power on your PC with the GPU installed, or find that it only outputs a black screen when you use it.

If you’re able to boot into Windows without crashing, chances are your GPU is running under the lower end of its power limit…but once it’s properly stressed and tries to reach for the wattage that isn’t there, you’re most likely to see a full system crash.

I once experienced crashes like this when my power supply was plugged into a UPS (Uninterruptible Power Supply) that didn’t have enough wattage to match it.

Besides undervolting your graphics card to meet your system’s wattage requirements, the best thing you can do in this situation is to either get rid of some of the other power-hogs in your system (like a lot of storage drives) or simply find and upgrade to a stronger, more efficient power supply.

Found this Tech site that explain in details about all the possible issues you can have with an underpowered PSU with a overpowered GPU card: https://robots.net/tech/what-happens-when-psu-is-not-strong-enough-for-gpu/

I bookmarked this site due to the excellent explanation of all the possible issues your PC and GPU will have with a under powered PSU installed.

Re: RX 580 SAPPHIRE NITRO+ undervolting for 400w psu (2024)

FAQs

Can I run RX 580 on 400W PSU? ›

What undervolt wattage should I set for my RX 580 GPU for a 400W PSU? Sapphire recommends a minimum PSU of 500 Watts for your GPU card which means your PSU is about 100 watts weaker than it should be. I suggest you just upgrade your PSU to a metal rated PSU to at least 850 Watts.

How much power does the RX 580 Undervolt use? ›

The RX 580 will need, at top gaming performance, 160–180W. A modern CPU will also need up to 100W.

What PSU do I need for RX 580 Nitro+? ›

System Requirement
  • 500 Watt or greater power supply (Recommended)
  • 1 x 8-pin Power Connector + 1 x 6-pin Power Connector.
  • PCI Express® compliant motherboard with one x16 graphics slot. GPU.

What power supply do I need for RX 580 8GB? ›

The AMD RX580 draws a max of around 185W stock - a quality 480W power supply should be sufficient assuming a similar mid-range CPU and rest of system.

Is 400W PSU enough for RX 560? ›

Should be fine, as the RX560 (in the specs) requires a 400w PSU. I would however recommend a upgrade to 600W or higher.

What GPU can I use with a 400W PSU? ›

RTX 4060/4060 Ti, RTX 3050/3060. If you want to go 2000 series then a 2070 or lower will work fine.

What is the maximum TDP for the RX 580? ›

Being a dual-slot card, the AMD Radeon RX 580 draws power from 1x 8-pin power connector, with power draw rated at 185 W maximum.

How much power does the RX 590 Sapphire Nitro+ use? ›

Despite the process shrink, TDP has gone up from 185W to 225W, which shows that all gains in efficiency have been sacrificed for speed. Radeon RX 590 graphics cards will have 8GB of GDDR5 RAM on a 256-bit bus.

Is RX 580 Nitro+ good? ›

Our Verdict. The Radeon RX 580 is basically the Radeon RX 480 with a new name, but that still makes it the best mainstream graphics card around. Sapphire's custom Nitro+ design is stellar.

How many watts does a RX 580 pull? ›

power consumption for rx 580 is 185W, GPU and CPU both uses the 12v port from your psu, just make sure you CPU and GPU's power consumption add together is about 80% of your 12v port.

Is 450W PSU enough for RX 580? ›

Normally it should be fine but i would recommend to look for a replacement. A good 450W would also be enough. Wattage doesn't tell much.

Is 6-pin enough for RX 580? ›

No. The card needs an 8-pin power connector But if your power supply doesn't have an 8-pin (or 6+2 pin) connector, you can use an adapter to combine TWO 6-pin connectors from the power supply into a single 8-pin connector for the graphics card.

What can a 400W power supply handle? ›

Generally speaking, a 400 Watt power inverter can run many household devices, such as heater, small televisions, laptops, cell phones, digital cameras, portable stereos, small power coffee makers, small power refrigerators (car refrigerators), and other electrical devices that are not very powerful.

How much watts does RX 580 consume? ›

Being a dual-slot card, the AMD Radeon RX 580 draws power from 1x 8-pin power connector, with power draw rated at 185 W maximum. Display outputs include: 1x HDMI 2.0b, 3x DisplayPort 1.4a. Radeon RX 580 is connected to the rest of the system using a PCI-Express 3.0 x16 interface.

Is 400W PSU good for gaming? ›

Firstly, a 400-watt power supply can comfortably power an RTX 3050. And your 400-watt power supply should be able to power the RTX 3060 you referenced, just like I was able to do this with a similar card with my HP ProDesk 600 G4 MT upgrade build. Wow really? all the info i found suggested a higher psu.

Is 300W PSU enough for RX 560? ›

A minimum PSU recommended for this GPU is 300W, the recommended is 600W. While the system will run with the 250W, you won't probably get the best performance possible in games. Your PSU is sufficient with the power draw that your PC is putting out.

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