460w power supply with a 500w GPU?

[Pyromania]

I have 460 watt power supply and was planning to upgrade my GPU to a radeon rx 580. However I saw that it said I needed a power supply with at least 500 watt minimum. Would I still be able to run my gpu normally or would issues start to pop up? I'm still new to upgrading PC parts so I'm not too sure how everything works.

[Komrade]

Which specific PSU model is this? If it’s a good quality model, it’ll be alright, if it’s not, should get a new one.

[tacoshy]

On the consumer market there is no 500W GPU. Espacially not a RX580. It only can in theory pull a amximum of 375W while in reality its below that. The 500W is a recommendation for the entire PC not only the GPU.

[Bad 💀 Motha]

Gpu maker psu recommendations are based on total system power and also based around cheap Chinese psus.

Take your cpu and gpu rated max tdp and add them together, add approx 100 watts to include motherboard + fans + drives; that should pretty much give you a realistic # in wattage you need minimum.

If your PC needs 300-400 watts then 460w should be fine of its not junk. Although I don't know any decent psu that would have 460w, so it already sounds like junk. I would never use below 500-550 watts bronze in a gaming PC, period.

[L37]

rx580 non-overclocked pulls something like ~200-250W max. All depends on the PSU. Good low-power PSU-s do exist but they are rare. I personally use chieftec gps-500c[www.chieftec.com] for quite some time, i've ran both rx580+i7-3770k on it and 5700xt with 130w TDP 8-core xeon. I even used thermal couples to make sure i am not overheating stuff and seen temperatures like ~+20 over ambient.
GPU manufacturer's recomendations should always be taken with a grain of salt - they assume average low-quality psu with some average system configuration.

[Pyromania]

Publicado originalmente por notkennyS:

Which specific PSU model is this? If it’s a good quality model, it’ll be alright, if it’s not, should get a new one.

I'm using a PSU that came with my computer so it's a dell one

[L37]

Publicado originalmente por Blitz:

I'm using a PSU that came with my computer so it's a dell one

Probably not a good idea.
This PSU-s are usually not entirely terrible , but they are also chosen with specific system in mind and if you double overall power consumption it will be very likely to fail.

[_I_]

any psu not ending in x50 or x00 is most likely not very good

what brand/model psu is it?

often you can find a quality 550-650w psu for under $40

[[☥] - CJ -]

The 500w recommended is for TOTAL system Power, not that the GPU uses 500w.
I wouldnt go for less than 550w-650w PSU just to be on the safe side and have some wattage left over.

[Ron]

Publicado originalmente por Blitz:

I have 460 watt power supply and was planning to upgrade my GPU to a radeon rx 580. However I saw that it said I needed a power supply with at least 500 watt minimum. Would I still be able to run my gpu normally or would issues start to pop up? I'm still new to upgrading PC parts so I'm not too sure how everything works.

If you're using the Cougar CGR S2-460 then your good to go.
That power supply equals a 550-600 watt Chinese cheapie

[tacoshy]

Publicado originalmente por OG🌲420:

Publicado originalmente por Blitz:

I have 460 watt power supply and was planning to upgrade my GPU to a radeon rx 580. However I saw that it said I needed a power supply with at least 500 watt minimum. Would I still be able to run my gpu normally or would issues start to pop up? I'm still new to upgrading PC parts so I'm not too sure how everything works.

If you're using the Cougar CGR S2-460 then your good to go.
That power supply equals a 550-600 watt Chinese cheapie

Dell using own PSU's with a different form factor and not that good in quality.
Also this is an inaccurate statement made out of nothing.
You can't compare a PSU quality to wattage. Wattage has nothing to do with quality. A higher quality will not be able to provide more wattage.

Even the cheapest 500W psu will be able to deliver 500W.
You just have to check on which rails.

[L37]

Publicado originalmente por tacoshy:

...
Even the cheapest 500W psu will be able to deliver 500W.
You just have to check on which rails.

Nope. I have tested a bunch of PSU-s with artificial load. 90% of cheap psu-s blow up when you set specifically what's written on the label on tester. Even cheap "brand" ones. Other 10% just turn off.
More expensive units can do this, often becase actual components they use are rated for higher loads.
Does not mean thet cheaper PSU-s are not usable, just do not expect them to deliver full advertised power.

[Ron]

Publicado originalmente por tacoshy:

Publicado originalmente por OG🌲420:

If you're using the Cougar CGR S2-460 then your good to go.
That power supply equals a 550-600 watt Chinese cheapie

Even the cheapest 500W psu will be able to deliver 500W.
You just have to check on which rails.

And how stable is that 500 watts from cheapo power supply? You a beginner? I've been building since the 90's friend. I'm not talking out of my äss

[tacoshy]

The low quality has higher tendency to fail but they deliver still 500W if it is a 500W PSU just not on the 12V rail alone.