1080 psu requirment question

[bengold710]

I have an evga 80 plus silver 500w psu. Currently, I have a 960 4gb and it works fine with no oc (card starts artifacting after plus 60-70 mhz). I was wobndering if it can run a gtx 1080 (won't be overclocking, maybe undervolting a little since my case airflow is not that great so I want lower temperatures). So basically can my psu handle the 1080?

 

[jankerson]

I have an evga 80 plus silver 500w psu. Currently, I have a 960 4gb and it works fine with no oc (card starts artifacting after plus 60-70 mhz). I was wobndering if it can run a gtx 1080 (won't be overclocking, maybe undervolting a little since my case airflow is not that great so I want lower temperatures). So basically can my psu handle the 1080?

NO WAY.

You need to get a better quality PSU than that defiantly.

Like one of these, 550W or 650W (Recommended.)

Seasonic Focus Plus
EVGA G2 or G3
Corsair RMX

If the case has an airflow issue then a new better case would be wise choice also.

 

[Rexper]

If it were a good 500w power supply then it could easily run a GTX 1080 system. No need for 650w.

There are no EVGA 80+Silver 500w PSUs. Maybe you mean 80+ White? In which case the PSU is borderline crap, and I recommend using a better quality power supply. Look at the Bitfenix Whisper, Corsair RMx, Seasonic Focus Plus, be Quiet Straight Power 11 550w power supplies.

 

[Deleted member 217926]

If it were a good 500w power supply then it could easily run a GTX 1080 system. No need for 650w.

There are no EVGA 80+Silver 500w PSUs. Maybe you mean 80+ White? In which case the PSU is borderline crap, and I recommend using a better quality power supply. Look at the Bitfenix Whisper, Corsair RMx, Seasonic Focus Plus, be Quiet Straight Power 11 550w power supplies.

^ Agreed.

 

[jankerson]

If it were a good 500w power supply then it could easily run a GTX 1080 system. No need for 650w.

There are no EVGA 80+Silver 500w PSUs. Maybe you mean 80+ White? In which case the PSU is borderline crap, and I recommend using a better quality power supply. Look at the Bitfenix Whisper, Corsair RMx, Seasonic Focus Plus, be Quiet Straight Power 11 550w power supplies.

Depends on what CPU and Model GTX 1080 they are running actually.

And if they are going to OC or not.

An I7 8700K can pull close to 300W if OCed.

That's not including the GTX 1080 that can also pull well over 250W.

 

[Rexper]

GTX 1080 - Peak = 203.29W or Aftermarket GTX 1080 Peak = 270.37W
i7-8700K Review

measuring an average of 170W, thermal throttling keeps the 180W+ peaks from becoming our average power consumption result

Sum of GPU peak + OC CPU peak (The two main power consumers in a system) = ~460w. This is absolute peak, which is likely never to occur in a system, if so for less than a second. And remember power supplies can withstand more current during peaks as opposed to continuous.

Average power consumption for the OC CPU + aftermarket GPU while gaming is ~260w. The other components will draw well under 50w.

Unless you're looking at overclocked systems involving i9/threadrippers + GTX 1080ti or alike, 550w will be fine for single-GPU systems. As long as it's good quality.

 

[bengold710]

I have an i7 4790k. Also, I do have the evga 500w 80plus white

 

[jankerson]

I have an i7 4790k. Also, I do have the evga 500w 80plus white

550W will be fine depending on the card and if you plan on doing in the future.

If you plan on upgrading (CPU etc) I would go with a 650W.

 

[bengold710]

I meant 500w, sorry

 

[jankerson]

I meant 500w, sorry

We know what you ment, the EVGA 500W 80+ White is absolute garbage PSU shaped object.

 

[bengold710]

so will it work with a 1080 or no?

 

[jankerson]

so will it work with a 1080 or no?

If you want to lose your GPU or maybe the whole system go ahead.

If you are getting a GTX 1080 you need to get a good quality PSU.

 

[bengold710]

would it at least work with a lower tdp card like a 1070 or 1070ti?

 

[jankerson]

would it at least work with a lower tdp card like a 1070 or 1070ti?

NO....

Don't even try it.

Replace that garbage unit.

 

[bengold710]

ok, instead of trying to get me to replace it, I want to know if literally any 10 series card (1060 or higher can actually run on it)

 

[jankerson]

ok, instead of trying to get me to replace it, I want to know if literally any 10 series card (1060 or higher can actually run on it)

NO....

I wouldn't trust that PSU to power an LED light.

It's an absolute piece of junk extremely low quality.

 

[bengold710]

well, i have an i7 4790k and a 960 4gb (both slightly oc) and it works literally fine. Plus, nvidia recommended a 500w psu for the 1080

 

[jankerson]

well, i have an i7 4790k and a 960 4gb (both slightly oc) and it works literally fine. Plus, nvidia recommended a 500w psu for the 1080

Do what you want.

But don't come crying to us when that PSU takes out that new GPU and maybe the whole system.

 

[Rexper]

It could run a GTX 1080, however the EVGA W1 isn’t a good power supply. It has loose voltage regulation and crossload. Meaning the more powerful GPU you put in your system, the looser the voltage delivery would be, decreasing your components’ lifespan, and you’re more prone to crashes/lockups.
Also, more money is at risk using a more powerful GPU.

Just because a PSU “works” doesn’t means it isn’t doing harm to your components.

 

[Deleted member 217926]

That EVGA White box unit doesn't belong in your computer. It's office PC tier at best and not even very good by that standard. So while it is technically sufficient it's not a very good idea.

RealhardtechX recommends 520 watts.


http://www.realhardtechx.com/index_archivos/Page362.htm


They do overestimate a bit to account for lower quality units. A 450w high quality unit would be fine. But there aren't many quality units until you get to 550 watts.

Edit: The 1080 is going to be adding at least 100w to your power use over that 960. You can't make an equivalency there.