• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Is my 400w PSU enough for my RX 580?

elpapimejor

New Member
Joined
Jan 24, 2020
Messages
22 (0.31/day)
Hello, this is my first post here at the TPU forums,

I have recently bought an used (probably mining) RX 580, and I currently have a dell prebuilt pc (optiplex 990) with an i7 2600, 3 4gb sticks of ddr3 ram, 2 3.5inch 7.2krpm HDD's, and an EVGA GTX 650 Ti 2gb (Been running this for the past 2 years with my current PSU) (think its an SC version.)

I currently have this EVGA 400w PSU (https://www.amazon.com/EVGA-Warranty-Power-Supply-100-N1-0400-L1/dp/B00LV8TZAG,) which has both 6+2pin and 6pin PCIe power connectors. And I was wondering if it would be okay to run all these components (not the 650 Ti but the RX 580) with this PSU? Would there be any problems?
 
Joined
May 4, 2011
Messages
535 (0.16/day)
System Name Smooth-Operator
Processor AMD Ryzen 7 3800x
Motherboard Asrock x570 Taichi
Cooling AMD Wraith Prism
Memory 2x16GB 3200MHz CL16 DDR4
Video Card(s) Sapphire Radeon RX 580 8GB NITRO+
Storage JBOD: 2+1+1TB 7200RPM HDD
Display(s) Samsung S24E370DL 24" IPS Freesync 75Hz
Case Fractal Design Focus G Window Blue
Audio Device(s) Creative X-Fi Titanium PCIe x1
Power Supply Corsair HX850 80+ Platinum
Mouse Gigabyte Aorus M3
Keyboard Zalman ZM-K300M
Software Windows 10 x64 Enterprise/Ubuntu Budgie amd64

DrakeFrst

New Member
Joined
Jan 24, 2020
Messages
2 (0.03/day)
Location
New York
650 TI's nominal maximum is 110w, RX 580 is almost twice that (around 190). 650TI is 6pin, 580 is 6+8 pin. I'd definitely upgrade, 400 is too low in my opinion for a stable system with this hardware. 550 is good enough, 650w (something like RM650x from corsair) is perfect.
 
Joined
Jan 22, 2020
Messages
18 (0.25/day)
System Name Optiplex 9020 mt
Processor i7-4770
Motherboard Dell 0PC5F7
Memory 14GB DDR3 1600Mhz
Video Card(s) Rx 570 8GB
Storage Kingston A400 240GB SSD
Power Supply Evga 500W W1 80+
580 is pretty power hungry, I wouldn't try running it on any 400w PSU, let alone one of EVGAs worst units. It might work, and if it doesn't, it probably won't do any damage, but why risk it? Buy a new quality 450W PSU minimum, imo.
 
Joined
Jun 1, 2011
Messages
1,936 (0.60/day)
Location
US of A
System Name gaming
Processor Intel i7-9700k @ 4.9ghz
Motherboard Gigabyte Z370 AORUS Gaming 3
Cooling Noctua U12A
Memory 16GB Corsair Vengeance LPX 3000mhz
Video Card(s) Gigabyte GTX 1660 Ti OC 6G
Storage Crucial MX500, Crucial P1 NVMe, ScanDisk Ultra 3D
Display(s) Dell - SE2717HR 27" IPS LED FHD FreeSync Monitor
Case Phanteks P400A w/ Noctua fans
Audio Device(s) Klipsch pro-media 2.1 speakers
Power Supply Seasonioc Focus Plus 650w
Mouse Logitech G502
Keyboard Logitech G15 original
Software Win 10
Benchmark Scores i can finally play crysis
  • Like
Reactions: 64K
Joined
Nov 24, 2018
Messages
562 (1.13/day)
Location
south wales uk
System Name 1. The Devils Dialysis VR rig 2. intel teliscope rig 3.MSI GP72MVR Leopard Pro .
Processor 1.2700x @4.2 2. i7 7700k @5. 3. i7 7700hq
Motherboard 1.aorus b450 elite 2. z270-a asus prime
Cooling 1.soft tube loop, cpu and gpu 2. soft loop cpu only
Memory 1.hyperx preditor @3600 16gb 2.vengence 32gb @3000 3. 16gb hyperx @2400
Video Card(s) 1.MSI 1080 8gb with EKWB 2. Sapphire Nitro+ rx580 8gb @1450 3. gtx 1060 3gb
Storage 1.256gb M.2,500gb ssd, 2 3tb HDs 2. 256gb ssd, 2tb 3. 256 m.2. 1tb ssd
Display(s) 1.LG 50inch UHD , oculus rift VR headset with touch. 2 SONY bravia1080p flat pannel 3. 17 inch
Case 1. Thermaltake P5 2. loop
Audio Device(s) 1 Onboard 2 Onboard 3 Onboard
Power Supply 1.750 80+gold mod 2. thermaltake 600w rbg
Mouse 1 ROG Gladius 2 Corsair m65 pro
Keyboard 1. ROG Strix Flare 2. Corsair F75 RBG 3. steelseries RBG
Software 1. win 10 enterpise 2. win10 pro 3, win10 home
Benchmark Scores 1.1950 cb 2. 1106 cb 3.cb 970
I wouldn't risk it, when psu gos bang thay tend to take other things with them. a 550wpsu would be the lowest id feel safe a 600w would be better as long as its a tidy make "corsair, seasonic ect.
 
Joined
Mar 13, 2014
Messages
4,481 (2.02/day)
Processor i7 7700k
Motherboard MSI Z270 SLI Plus
Cooling CM Hyper 212 EVO
Memory 2 x 8 GB Corsair Vengeance
Video Card(s) MSI RTX 2070 Super
Storage Samsung 850 EVO 250 GB and WD Black 4TB
Display(s) Dell 27 inch 1440p 144 Hz
Case Corsair Obsidian 750D Airflow Edition
Audio Device(s) Onboard
Power Supply EVGA SuperNova 850 W Gold
Mouse Logitech G502
Keyboard Logitech G105
Software Windows 10
You will probably be alright if that PSU is a Quality PSU (which I don't know anything about that model). I would be more comfortable with a quality 500 watt PSU though.

This measurement was taken using a high end overclocked CPU


Load Power Consumption - Crysis 3




And also depends on which RX 580 model you are looking at. Some of the overclocked models use more watts than others.


Edit: That's a pretty low score from jonnyguru that dirtyferret posted a link to in post #5
I don't think I would try it with that PSU having seen that review.
 
Joined
Mar 10, 2015
Messages
2,914 (1.57/day)
System Name Wut?
Processor 3900X
Motherboard ASRock Taichi X570
Cooling Water
Memory 32GB GSkill CL16 3600mhz
Video Card(s) Vega 56
Storage 2 x AData XPG 8200 Pro 1TB
Display(s) 3440 x 1440
Case Thermaltake Tower 900
Power Supply Seasonic Prime Ultra Platinum
I am getting ready to plop an exmining 580 into a mini-itx 3700x build that currently has a 450w. I am likely going to swap it out for the 600 because I have it sitting there as well. However, I'm lazy and don't really feel like pulling apart the system with the 600 in it.
 

elpapimejor

New Member
Joined
Jan 24, 2020
Messages
22 (0.31/day)
Thanks to everybody for the quick replies,

I just got out of my computer maintenance class, and my teacher was kind enough to give me a 500w PSU (Cooler Master Extreme Power Plus 500W - RS-500-PCAR-A3,) but turns out the psu doesnt have an 8pin connector, only a 6pin :'(
 
Joined
May 4, 2011
Messages
535 (0.16/day)
System Name Smooth-Operator
Processor AMD Ryzen 7 3800x
Motherboard Asrock x570 Taichi
Cooling AMD Wraith Prism
Memory 2x16GB 3200MHz CL16 DDR4
Video Card(s) Sapphire Radeon RX 580 8GB NITRO+
Storage JBOD: 2+1+1TB 7200RPM HDD
Display(s) Samsung S24E370DL 24" IPS Freesync 75Hz
Case Fractal Design Focus G Window Blue
Audio Device(s) Creative X-Fi Titanium PCIe x1
Power Supply Corsair HX850 80+ Platinum
Mouse Gigabyte Aorus M3
Keyboard Zalman ZM-K300M
Software Windows 10 x64 Enterprise/Ubuntu Budgie amd64
Thanks to everybody for the quick replies,

I just got out of my computer maintenance class, and my teacher was kind enough to give me a 500w PSU (Cooler Master Extreme Power Plus 500W - RS-500-PCAR-A3,) but turns out the psu doesnt have an 8pin connector, only a 6pin :'(
Use molex->pci-e adapter which you can get cheap for like 1-2$/eur.
 
Joined
Mar 10, 2015
Messages
2,914 (1.57/day)
System Name Wut?
Processor 3900X
Motherboard ASRock Taichi X570
Cooling Water
Memory 32GB GSkill CL16 3600mhz
Video Card(s) Vega 56
Storage 2 x AData XPG 8200 Pro 1TB
Display(s) 3440 x 1440
Case Thermaltake Tower 900
Power Supply Seasonic Prime Ultra Platinum
Joined
Mar 10, 2015
Messages
2,914 (1.57/day)
System Name Wut?
Processor 3900X
Motherboard ASRock Taichi X570
Cooling Water
Memory 32GB GSkill CL16 3600mhz
Video Card(s) Vega 56
Storage 2 x AData XPG 8200 Pro 1TB
Display(s) 3440 x 1440
Case Thermaltake Tower 900
Power Supply Seasonic Prime Ultra Platinum
Joined
Jan 31, 2010
Messages
3,466 (0.93/day)
Location
Gougeland (NZ)
System Name Cumquat 2000
Processor AMD RyZen R7 3700X
Motherboard Asus Strix x470-F Gaming
Cooling Cryorig R1 Universal
Memory 16GB GSkill TridentZ DR4-3200 16-18-18-38 1.35V
Video Card(s) Gigabyte RX580 Gaming 8GB
Storage 1X Samsung 860 EVO 500GB SATA AHCI 1x Sandisk 128GB PCIe, 12TB of HDD Storage
Display(s) ViewSonic VX2457 MHD 75Hz FreeSync 1920x1080p
Case SilverStone Raven RV02B-W + 3x SS AP181 + USB3.0 upgrade
Audio Device(s) Creative SB X-Fi Titanium Fatal1ty Pro PCIe + Pioneer VSX-531 amp Technics 100W Speaker set
Power Supply Enermax RevolutionXT II 750W 80+ Gold
Mouse Logitech G502 Proteus Core
Keyboard Logitech G105
Software Windows 10 X64 PRO (build 1909)
Benchmark Scores it sucks even more less now ;)
you may find that running it on that 500W PSU may have problems maintaining enough current seeing as it's only 18A on either the 12V1 or 12V2 lines I know they state the card is only 185W TDP but I've seen mine pull 220W while gaming
 
Joined
Jul 25, 2006
Messages
6,619 (1.32/day)
Location
Nebraska, USA
System Name Brightworks Systems BWS-6 E-IV
Processor Intel Core i5-6600 @ 3.9GHz
Motherboard Gigabyte GA-Z170-HD3 Rev 1.0
Cooling Quality case, 2 x Fractal Design 140mm fans, stock CPU HSF
Memory 16GB (2 x 8GB) DDR4 3000 Corsair Vengeance
Video Card(s) EVGA GEForce GTX 1050Ti 4Gb GDDR5
Storage Samsung 850 Pro 256GB SSD, Samsung 860 Evo 500GB SSD
Display(s) Samsung S24E650BW LED x 2
Case Fractal Design Define R4
Power Supply EVGA Supernova 550W G2 Gold
Mouse Microsoft Wireless 5000
Keyboard Microsoft Wireless Comfort 5050
Software W10 Pro 64-bit
I wouldn't risk it, when psu gos bang thay tend to take other things with them.
While possible, that is pretty rare these days - especially with PSUs from major makers like EVGA. The more likely scenario is the PSU will simply stop outputting voltage. That's certainly what is supposed to happen when a PSU fails. Of course, that assumes it is not other wise damaged.

@elpapimejor - I agree with dirtyferret and that 400W EVGA is adequate - but just barely. Since it is rare for the CPU, GPU, all drives, fans, RAM, and motherboard to pull maximum power at the exact same time, it is unlikely you will over load that PSU. But you are still pushing it. It is likely you will be running that PSU near capacity much of the time and if your case cooling is not providing lots of cool air flowing through the case, that PSU may be running pretty warm most of the time. That in itself is not bad, but could mean the PSU's fan is running near full speed - and maximum loudness - much of the time too. And I hate fan noise.

This heat issue will be compounded if your ambient (room) temperatures are high where you are too.

A nice 550 - 650W PSU (and I like EVGA SuperNova or Seasonic Gold supplies) would be plenty big giving you enough headroom for future upgrades while not stressing the supply thus allowing the PSU fan to run much slower (or even off) and thus much quieter too. Did I mention I hate fan noise?
 

elpapimejor

New Member
Joined
Jan 24, 2020
Messages
22 (0.31/day)
So, if I run the card on the 400w PSU for lets say about 3-6 months (While i get money for a new one) I should be okay
 
Joined
Mar 10, 2015
Messages
2,914 (1.57/day)
System Name Wut?
Processor 3900X
Motherboard ASRock Taichi X570
Cooling Water
Memory 32GB GSkill CL16 3600mhz
Video Card(s) Vega 56
Storage 2 x AData XPG 8200 Pro 1TB
Display(s) 3440 x 1440
Case Thermaltake Tower 900
Power Supply Seasonic Prime Ultra Platinum
So, if I run the card on the 400w PSU for lets say about 3-6 months (While i get money for a new one) I should be okay
No one has a crystal ball but likely.
 
D

Deleted member 193706

Guest
So, if I run the card on the 400w PSU for lets say about 3-6 months (While i get money for a new one) I should be okay
Just don't overclock it or your cpu in fact if you wanted to err on the side of caution, you could undervolt and clock it down to around 1250mhz core and it would probably only pull around 160w whilst still giving you nearly the same performance and putting less of a strain on your psu for peace of mind ;)
 
Joined
Jul 25, 2006
Messages
6,619 (1.32/day)
Location
Nebraska, USA
System Name Brightworks Systems BWS-6 E-IV
Processor Intel Core i5-6600 @ 3.9GHz
Motherboard Gigabyte GA-Z170-HD3 Rev 1.0
Cooling Quality case, 2 x Fractal Design 140mm fans, stock CPU HSF
Memory 16GB (2 x 8GB) DDR4 3000 Corsair Vengeance
Video Card(s) EVGA GEForce GTX 1050Ti 4Gb GDDR5
Storage Samsung 850 Pro 256GB SSD, Samsung 860 Evo 500GB SSD
Display(s) Samsung S24E650BW LED x 2
Case Fractal Design Define R4
Power Supply EVGA Supernova 550W G2 Gold
Mouse Microsoft Wireless 5000
Keyboard Microsoft Wireless Comfort 5050
Software W10 Pro 64-bit
So, if I run the card on the 400w PSU for lets say about 3-6 months (While i get money for a new one) I should be okay
Yeah, no crystal ball here. For normal computer use (surfing the net, updating social media, creating emails and Word documents, viewing videos, etc.), and assuming you have good case cooling (to include decent ambient temps) and you keep the interior clean of heat trapping dust, then heat and power should not be an issue.

But if you start really taxing the computer, then it is anyone's guess.

Of course, to be safe, the wise option might just be to stick with the GTX 650 Ti until you get your new PSU.
 
Joined
Jun 28, 2014
Messages
2,328 (1.10/day)
Location
Shenandoah Valley, Virginia USA
System Name Home Brewed
Processor i9-7900X and i7-8700K
Motherboard ASUS ROG Rampage VI Extreme & ASUS Prime Z-370 A
Cooling Corsair 280mm AIO & Thermaltake Water 3.0
Memory 64GB DDR4-3000 GSKill RipJaws-V & 32GB DDR4-3466 GEIL Potenza
Video Card(s) 2X-GTX-1080 SLI & 2 GTX-1070Ti 8GB G1 Gaming in SLI
Storage Both have 2TB HDDs for storage, 480GB SSDs for OS, and 240GB SSDs for Steam Games
Display(s) ACER 28" B286HK 4K & Samsung 32" 1080P
Case NZXT Source 540 & Rosewill Rise Chassis
Audio Device(s) onboard
Power Supply Corsair RM1000 & Corsair RM850
Mouse Generic
Keyboard Razer Blackwidow Tournament & Corsair K90
Software Win-10 Professional
Benchmark Scores yes
the wise option might just be to stick with the GTX 650 Ti until you get your new PSU.
^^This^^
I would plug the mining card in to see if it works, then pull it out and save it for when you can properly power it.

Edit:
Consider that the PSU is the cornerstone, (or foundation if you will) for any PC build. Getting a quality PSU means years of trouble-free use out of it.
Whenever I build a PC, I usually buy the PSU a few months before I plan to build. I choose a little more power than what I'll need, and I choose a brand that I know is made well.
I like Seasonic branded PSUs the best. I've had the least problems over the years with them. I have some EVGA units and they've been good for me as well.

Years ago I had a PSU fail in my computer. When it died, I lost my motherboard, memory, GPUs (two of them), and a sound card. Most of what I lost was only a few months old, and I couldn't replace it for a few months. The only RMA that worked out of all of those components was the GSKill RAM. everything else was a total loss.
It was an Antec brand unit that did me in, and I've never looked to them for anything again.

I can't stress this enough.
Spend the money on a high-quality PSU that has a little extra juice to cover your future upgrades as well.
 
Last edited:

newtekie1

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
26,951 (5.14/day)
Location
Indiana, USA
Processor Intel Core i7 9900K@5.0GHz
Motherboard AsRock Z370 Taichi
Cooling Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory 32GB Corsair DDR4-3000
Video Card(s) ASUS Strix GTX 1080Ti
Storage 500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Fractal Design Define S
Audio Device(s) Onboard is good enough for me
Power Supply eVGA SuperNOVA 1000w G3
Software Windows 10 Pro x64
It's "capable" of powering your specs with the RX580 but if it was me, I would start saving for a new solid PSU sooner rather then later


Basically this.

Would that power supply run the RX580? Probably. Would I trust it to power my computer? No, I wouldn't put that PSU in any computer.

Decent power supplies are cheap these days, but replacing your entire computer because your dodgy power supply died and took everything in your computer with it isn't cheap.

While possible, that is pretty rare these days - especially with PSUs from major makers like EVGA. The more likely scenario is the PSU will simply stop outputting voltage. That's certainly what is supposed to happen when a PSU fails. Of course, that assumes it is not other wise damaged.
You'd hope, but this thing has been costed down to the point that is doesn't even PFC. When I see a unit that is so cheaply made it doesn't have PFC and can't even get past 80% efficiency, I don't really trust it has a proper OCP circuit or other protection circuits. I just don't trust them, eVGA name or not.
 
Last edited:

eidairaman1

The Exiled Airman
Joined
Jul 2, 2007
Messages
30,387 (6.52/day)
Location
Republic of Texas (True Patriot)
System Name PCGOD
Processor AMD FX 8350@ 5.0GHz
Motherboard Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s) AMD Radeon 290 Sapphire Vapor-X
Storage Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s) NEC Multisync LCD 1700V (Display Port Adapter)
Case AeroCool Xpredator Evil Blue Edition
Audio Device(s) Creative Labs Sound Blaster ZxR
Power Supply Seasonic 1250 XM2 Series (XP3)
Mouse Roccat Kone XTD
Keyboard Roccat Ryos MK Pro
Software Windows 7 Pro 64
You will probably be alright if that PSU is a Quality PSU (which I don't know anything about that model). I would be more comfortable with a quality 500 watt PSU though.

This measurement was taken using a high end overclocked CPU


Load Power Consumption - Crysis 3




And also depends on which RX 580 model you are looking at. Some of the overclocked models use more watts than others.


Edit: That's a pretty low score from jonnyguru that dirtyferret posted a link to in post #5
I don't think I would try it with that PSU having seen that review.
Just grab a Seasonic or Super Flower based 550 Watt or higher, EVGA have them or just look for a Seasonic Unit.

http://www.realhardtechx.com/index_archivos/Page2293.htm, max current draw is 30 Amperes
 
Joined
Sep 6, 2019
Messages
1,118 (5.30/day)
System Name just ordinary potato system, but dont understimate potato..
Processor ryzen raven ridge 2200g, ryzen 2600 upgrade:)
Motherboard msi b350 pc mate, biostars a320, asrock ab350m micro
Cooling x2 cheap china handmade, i got plenty aigo/fantech rgb fans now heh
Memory klevv dual channel 8gb 3000mhz, trident 16gb 3600mhz, random ddr2 stick
Video Card(s) back to square, using vega 56 now:D
Storage wd green ssd 240gb, 3tb seagate expnasion, random laptop hdd x4, 1tb 3.5
Display(s) acer vgo 22inch fullhd 75hz
Case cheap segotep/dazumba mid atx, alcatroz mini atx
Audio Device(s) genius retro wood style, harman kardon stick iii
Power Supply be quite system power9, powerlogic standar, voltron 300fx, thermaltake smart 1200w
Mouse rexus, genius ps/2, powerlogic ps/2 ball tracking
Keyboard rexus, random china product x3
Software talking abt best software, autodesk/unity3d/notepad yes notepad!!
Benchmark Scores theres nothing to brag abt potato, but it can run decent 30fps fullhd with good setting:)
pretty much enough, 400w, but such low quality psu im not sure how long it can stand that rx570, make sure to pay for known brand psu oke:)
 
Top