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I have an RX 580 8GB (Powercolor Red Devil Edition), but my PSU only has a 6 pin.

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My psu is 500w and my card is the one in the title. I didn't know an 8 pin could be used to power a motherboard, so I just assumed it was for the pcie.
The card requires an 8+6 pin. Could I get an adapter or only use the 6 pin?
Also, I read online somewhere that my card's 8 pin and 6 pin share the same power thingy, so they connect to the same thing to power the whatever. (Sorry, not that good at the internals of GPUs)
 
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What power supply do you have? If it only has a single 6 pin, I don’t think it’s a good idea to use that unit.
 
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500W (Model:DR-8500BTX)
I got my case with the PSU preinstalled from here.

Could I use a 6 pin to 6+2 pin adapter to only use the 8 pin until I get a good psu? I won't be OCing at all
 
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I did use the adapter too, on my daughter's PC with 450W PS. Still in use... Playing 1080p games.
 
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Would something like this work? https://www.amazon.com/Graphics-Express-Splitter-Power-Extension/dp/B073M4643C

I know this probably wouldn't work, but could you use a 6 pin to 6+2 pin, then use the 6+2 pin for a dual 6+2 pin adapter?

I'm not even playing 1080p, I'm at 1280x1024 until I upgrade my monitor.
I should be able to get 60fps on high to ultra

I'll get an adapter, hopefully it works. If not, I'll post my results here, watch me blow up my entire home.

They're dirt cheap anyways
 
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If you have the card, just the card's connectors' newegg says it's 8 pin.


PowerColo rSeriesRED DRAGON ModelAXRX 580 8GBD5-3DHDV2/OC
Power Connector8-Pin

The 8 pin can carry 150 watts ... the slot can carry 75 ,,, that's 225 watts.

The 6 pin can carry 75 watts ... the slot can carry 75 ,,, that's 150 watts.

According to TPU testing, the reference 580 needs 208 watts ... 6 pin's 150 (75 + 75) watts wont cut it.
123124



When the 480 came out, early models had 6 pin connectors ..... there were failures, even fried cards but, as with everything else, the issue was exaggerrated. AMD issued a fix that was applied to those with the 6 pin cards that reduced power (and performance) . There's many articles on the topic, you can find them with a web search on "RX480 power issue".

Can ya get away with it ... probably. Would I recommend it ? No. If ya fry ya MoBo slot or the card, you installed the card contrary to both manufacturers recommendations and you'd have no case to return either. If ya wait for sales, can usually find a Seasonic S12 520 / 620 / 650 for $35 or so.
 
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If you have the card, just the card's connectors' newegg says it's 8 pin.


PowerColo rSeriesRED DRAGON ModelAXRX 580 8GBD5-3DHDV2/OC
Power Connector8-Pin

The 8 pin can carry 150 watts ... the slot can carry 75 ,,, that's 225 watts.

The 6 pin can carry 75 watts ... the slot can carry 75 ,,, that's 150 watts.

According to TPU testing, the reference 580 needs 208 watts ... 6 pin's 150 watts wont cut it.
View attachment 123124


When the 480 came out, early models had 6 pin connectors ..... there were failures, even fried cards but, as with everything else, the issue was exaggerrated. AMD issued a fix that was applied to those with the 6 pin cards that reduced power (and performance) . There's many articles on the topic, you can find them with a web search on "RX480 power issue".

Can ya get away with it ... probably. Would I recommend it ? No. If ya fry ya MoBo slot or the card, you installed the card contrary to both manufacturers recommendations and you'd have no case to return either. If ya wait for sales, can usually find a Seasonic S12 520 / 620 / 650 for $35 or so.
Thank you for the expert reply with the info I needed, I will get an adapter and use that for now.
 
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If you have the card, just the card's connectors' newegg says it's 8 pin.


PowerColo rSeriesRED DRAGON ModelAXRX 580 8GBD5-3DHDV2/OC
Power Connector8-Pin

The 8 pin can carry 150 watts ... the slot can carry 75 ,,, that's 225 watts.

The 6 pin can carry 75 watts ... the slot can carry 75 ,,, that's 150 watts.

According to TPU testing, the reference 580 needs 208 watts ... 6 pin's 150 (75 + 75) watts wont cut it.
View attachment 123124


When the 480 came out, early models had 6 pin connectors ..... there were failures, even fried cards but, as with everything else, the issue was exaggerrated. AMD issued a fix that was applied to those with the 6 pin cards that reduced power (and performance) . There's many articles on the topic, you can find them with a web search on "RX480 power issue".

Can ya get away with it ... probably. Would I recommend it ? No. If ya fry ya MoBo slot or the card, you installed the card contrary to both manufacturers recommendations and you'd have no case to return either. If ya wait for sales, can usually find a Seasonic S12 520 / 620 / 650 for $35 or so.
His is RED DEVIL, which uses 8+6 setup:
The one you posted is RED DRAGON
 
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Doesn't it come with

His is RED DEVIL, which uses 8+6 setup:
The one you posted is RED DRAGON
LOL, thank you, I didn't notice he said that. I've decided on using my PCI-E 6 pin and converting my 2 molexes to an 8pin.
 
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If you have the card, just the card's connectors' newegg says it's 8 pin.


PowerColo rSeriesRED DRAGON ModelAXRX 580 8GBD5-3DHDV2/OC
Power Connector8-Pin

The 8 pin can carry 150 watts ... the slot can carry 75 ,,, that's 225 watts.

The 6 pin can carry 75 watts ... the slot can carry 75 ,,, that's 150 watts.

According to TPU testing, the reference 580 needs 208 watts ... 6 pin's 150 (75 + 75) watts wont cut it.
View attachment 123124


When the 480 came out, early models had 6 pin connectors ..... there were failures, even fried cards but, as with everything else, the issue was exaggerrated. AMD issued a fix that was applied to those with the 6 pin cards that reduced power (and performance) . There's many articles on the topic, you can find them with a web search on "RX480 power issue".

Can ya get away with it ... probably. Would I recommend it ? No. If ya fry ya MoBo slot or the card, you installed the card contrary to both manufacturers recommendations and you'd have no case to return either. If ya wait for sales, can usually find a Seasonic S12 520 / 620 / 650 for $35 or so.

Wasn't that issue being the card drawing more than the 75w through the PCI-E slot instead rather than the PEG connector?
 
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It will run off a single 8 pin pcie but not the 6 pin so just get an adaptor 6>8pin pcie. The "extra" 6 pin connector is for extra power headroom when overclocking and increasing voltage and power limits.
 
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His is RED DEVIL, which uses 8+6 setup:
The one you posted is RED DRAGON
Whoops.... bad click but really doesn't matter. That extra 6 pin is not required for a card that caps out at 200 watts.

75 slot + 150 8 pin = 225 watts. And if the user does not OC, I would not be concerned too much with a single 8 pin. But I notice that in MSI afterburner, even the red devil allows a 50% increase in power limit ... which means 200 watts x 1.50 or 300 watts. So with a 6 pin connector, I would use the power limiter to knock the power limit down quite abit.

An "adapter" doesn't to magic. While it lets you connect the two different size connectors it does not increase the power that the wires / connectors / PSU are rated for, Using a x 8 x 6 adapter is OK for connecting a 8 pin PSU feed to a 6 pin card, not the other way around. Aside from the cables, what can the PSU handle. That card will pull 16,7 amps, I personaly would want the 12V rail to which it is connected to be rated for at least 20 amps, and that's assuming no other devices are connected to that rail.

The other issue with adapters is "cheap sells" ... I keep a desk drawer full or burnt / failed adapters what were assembled poorly. I generally make my own cables or buy from a reputable builder such as mainframe. One bad cale / pin connection in a $1,99 cable means smoke in the room.

Wasn't that issue being the card drawing more than the 75w through the PCI-E slot instead rather than the PEG connector?
Well here we have both ... the 6 pin cable means you gonna get 75 watts, when the 480 wanted more than 150, it wa spulling that needed power from the slot as the PSU wasn't supplying it ... not that a 6 -pin cable ouldn't pull more if it was avilable but the reason was the PSU could not supply enough to that cable thru it's 6 pin slot.
 
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That PowerColor Red Dragon is exactly the card that I have in my other PC, running well with power from a 6 pin connector with an 6-8 adapter. Power limit might be teoreticaly 200W, but I didn't see that happening. No OC here, not past what factory was.
 
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Well here we have both ... the 6 pin cable means you gonna get 75 watts, when the 480 wanted more than 150, it wa spulling that needed power from the slot as the PSU wasn't supplying it ... not that a 6 -pin cable ouldn't pull more if it was avilable but the reason was the PSU could not supply enough to that cable thru it's 6 pin slot.
Ahh, right. I didnt pay too much attention to the issue at the time as I had an nVidia card back then, I just remember vaguely reading about it on some tech sites when the power draw issue first came to light.
 
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