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BattleToads

6-pin to 8-pin adapter?

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Posted · Original PosterOP

I just received an XFX Radeon RX 580 8GB which requires a single 8-pin connection. It came with a 2x 6-pin to 1x 8-pin connector, but my power supply only has a single 6-pin PCI-E plug. Will the adapter work with just a single 6-pin? I've read that you can use a 6-pin connector in an 8-pin slot but it isn't ideal, would it work here? Is a single 6-pin to single 8-pin adapter the best or should I get a dual molex to 8-pin adapter? 

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A single 6-pin would not be sufficient enough for it. I would get a dual molex to 8-pin, or if you're really really desperate, use dual sata to 8-pin.


"Audiophilia... when you start to hear voices in your head."

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5 minutes ago, BattleToads said:

I just received an XFX Radeon RX 580 8GB which requires a single 8-pin connection. It came with a 2x 6-pin to 1x 8-pin connector, but my power supply only has a single 6-pin PCI-E plug. Will the adapter work with just a single 6-pin? I've read that you can use a 6-pin connector in an 8-pin slot but it isn't ideal, would it work here? Is a single 6-pin to single 8-pin adapter the best or should I get a dual molex to 8-pin adapter? 

If your buying a RX580. I suggest a PSU upgrade, 


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you would be better off with a dual molex adapter in my experience.  the only real difference between 6 and 8 pin pcie connectors is the number of ground cables.  Although your single 6 pin may be enough to power your card it is pushing the spec to the limit.  If you have easy access to a molex adapter i would use it as it will be within a few watts within the max draw on an 8 pin and AS LONG AS YOU DON"T OVERCLOCK THE GPU (factory overclock should be fine) this should suit you fine.  I used to use a molex adapter and a dual 6 pin to 8 pin to power my 1080 in my old build.

 

edit: spelling

 

edit:  The fact you have only one 6 pin available makes me nervous that your already approaching the watt limit for your power supply as is, please make sure youre not pushing that bad boy too hard.  Especially with adapters.

Edited by orbafloatin
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Technically it would turn on (I believe) but it is by no means recommended. Typically, if your PSU has insufficient connectors for a device, it is not fit to run that device.


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

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Draws 400 watts under max load, for reference.

 

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How many watts do I need? Seasonic Focus threadUserbenchmark (Et al.) is trash explained, PSU misconceptions, protections explainedgroup reg is bad

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Just now, orbafloatin said:

dual molex adapter

Dual molex to six pin to dual six pin to eight pin. Makes most sense but seems ridiculous to read and to picture.


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Kill Trident Z RGB - Force MP500 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G2 650W - Black and green theme, Razer branwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Dual Xeon X5560 - 24GB ECC DDR3 - GTX 750 TI - old Seagate 1.5TB HDD - Dark moded Ubuntu (and Win7, cuz why not)

 

How many watts do I need? Seasonic Focus threadUserbenchmark (Et al.) is trash explained, PSU misconceptions, protections explainedgroup reg is bad

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16 minutes ago, BattleToads said:

It's a Thermaltake 430W PSU. Not interested in shelling out more cash for another PSU. 

Are you interested in shelling out cash for a new house after it burns down though?


My sound system costs more than my PC.        Check out my S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

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Posted · Original PosterOP
2 minutes ago, Enderman said:

Are you interested in shelling out cash for a new house after it burns down though?

I would like to think that Thermaltake's quality is good enough that it can run a 580 and a quad-core off 430W without danger of combustion...

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2 minutes ago, BattleToads said:

I would like to think that Thermaltake's quality is good enough that it can run a 580 and a quad-core off 430W without danger of combustion...

Those low end thermaltake PSUs are some of the worst.

Thermalfake in general makes pretty crap quality PC components all form china.


My sound system costs more than my PC.        Check out my S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

Spoiler

Intel i7 4790k | AMD Vega 64 | ASUS Sabertooth Z97 Mark S | Corsair Vengeance Pro 32GB | NZXT S340 | Seasonic Platinum 760 | modded H100i | Coolermaster SK630 White | Logitech MX Master 2S | 2x Samsung 850 Pro 512GB | WD Red 4TB Samsung 58" 4k TV | 2x Behringer NEKKST K8 | BIC Acoustech H-100II | Scarlett 2i4 | 2x AT2020

 

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Posted · Original PosterOP
22 minutes ago, fasauceome said:

Dual molex to six pin to dual six pin to eight pin. Makes most sense but seems ridiculous to read and to picture.

Just found a dual molex to six-pin in an old motherboard box... This, combined with the 6-pin already connected to the PSU (Thermaltake 430W) should be safe to run the RX 580, yes? 

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3 minutes ago, BattleToads said:

I would like to think that Thermaltake's quality is good enough

Speaking only to this snippet, PSUs are something you cannot use this logic with. EVERY PSU brand has its crap tier. Most use OEMs as well. So Thermaltake could have 3 different people making their stuff. It simply does not work on an overall brand judgement basis.

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1 minute ago, BattleToads said:

Just found a dual molex to six-pin in an old motherboard box... This, combined with the 6-pin already connected to the PSU (Thermaltake 430W) should be safe to run the RX 580, yes? 

Yes. Not optimal, but functional. Get a $35 PSU at some point.


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Kill Trident Z RGB - Force MP500 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G2 650W - Black and green theme, Razer branwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Dual Xeon X5560 - 24GB ECC DDR3 - GTX 750 TI - old Seagate 1.5TB HDD - Dark moded Ubuntu (and Win7, cuz why not)

 

How many watts do I need? Seasonic Focus threadUserbenchmark (Et al.) is trash explained, PSU misconceptions, protections explainedgroup reg is bad

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Just now, BattleToads said:

6 years

Power Supplies get old, this one probably hasn't got much left in it.


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Kill Trident Z RGB - Force MP500 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G2 650W - Black and green theme, Razer branwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Dual Xeon X5560 - 24GB ECC DDR3 - GTX 750 TI - old Seagate 1.5TB HDD - Dark moded Ubuntu (and Win7, cuz why not)

 

How many watts do I need? Seasonic Focus threadUserbenchmark (Et al.) is trash explained, PSU misconceptions, protections explainedgroup reg is bad

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Posted · Original PosterOP

OK, so I've got the card installed and running. Doesn't really seem to improve performance though. In fact, it might be worse. I'm guessing it's bottlenecked by this CPU. 

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