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BoneDaddy

Help not enough pcie 8 pins

8 minutes ago, Tristerin said:

PSU is plenty strong enough.  65w CPU, 5700xt 225w (and you are right, 6 + 8 pin is what they should come in btw - maybe yours is a factory OC?) and 15-20w for ODD,HDD,SSD, fans.

 

Heres the thing - you can try anything :) I.E. slot gives 75w, 8 pin gives 150 (that's the 225) then hope that the other 8 pin slot doesn't draw more than 75w and your 6 pin to 8 pin will work just fine.

 

BUT I have the same option as you (free 6 pin), and knowing what I know I went with 2x Molex to 8 pin (bought 2, only needed 1, got the second cause I may need one in the future and it was super cheap shipped).  Im powering an R9 Fury Nitro+ so couldn't take the risk with a 6 pin to 8 pin with that power hungry manimal.

Yeah its oc and can reach 279w at Furmark acording to techpowerup, less during regular use tho. Guess it’ll be fine and im gonna go for 6->8pin for the science (and the part of me that hates the bus and is super lazy). Thanks for the help, appreciate it:)

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Posted · Original PosterOP

Hey guys! I just bought an 5700xt rog strix oc, but I didnt check what the PCI pin connector requirements were. I looked at a few and I think they had 1 x 8 pin and 1 x 6 pin connectors.
 

Anyway this one has 2 x 8 pin connectors but my old psu only has 1, and 1 6 pin. Im thinking about buying an adapter for 6 to 8 pin tomorrow but im not sure if my psu Will be up to the task, and if the card Will run if i do. My specs are:

 

ryzen 3600x

rog strix b450 gaming f

16gb Ddr4 3200mhz ram

2xssd

1x7200rpm hdd

Xfx pro 550w psu (85 rated i think)

upgraded from 1060 6gb MSI gaming x to 5700 xt rog strix (not tested yet, due to no adapter)


sorry if this is a bad post or posted on wrong Page (im new here)

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I would get 2x Molex to 8 pin.

 

6 pin delivers up to 75w

8 pin delivers up to 150w (double, may melt the adapter if it puts that current through or just crash)

4 pin molex delivers up to 132w on the 12v pins (from the way I understand it)

 

And since you are adding restriction in the current by using an adapter that's why I suggest getting a 2x molex to 8 pin so it shares the burden (and doesn't melt under load ;)

 

Just an FYI I just bought 2 of these 2x molex to 8 pin for a rig for these exact reasons described above.

 

 

However there are much more intelligently versed people here so wait till they also chime in


Workstation Laptop: Dell Precision 7540, Xeon E-2276M, 32gb DDR4, Quadro T2000 GPU, 4k display

Ryzen Rig 2: ASrock B450 Pro4 ATX, Ryzen 7 1700 @ 4.2ghz all core 1.4vCore, AMD R9 Fury X w/ Swiftech KOMODO waterblock, Custom Loop 2x240mm + 1x120mm radiators in push/pull 16gb (2x8) 3600mhz V-Color Skywalker (or 4x8gb DDR4 2666mhz for large tasks), Corsair HX850 PSU, 128gb Patriot Scorch NVMe Win 10 boot drive, 500gb Samsung 840 EVO SSD, CoolerMaster HAF XM Case.  Zalman K600S keyboard, Zalman ZM-GM1 mouse, Hannspree HF207 and Acer AL2016W monitors

https://www.3dmark.com/3dm/37004594?

Ryzen Rig 1: ASUS B350-PRIME ATX, Ryzen 7 1700, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (2x8) 3200mhz V-Color Skywalker, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, Cougar MX330-X Case.  Zalman K600S keyboard, Zalman ZM-GM1 mouse, Acer XF270HU 2560x1440 144hz IPS monitor

https://www.3dmark.com/3dm/37628874?

Dwight: The Mixed Metals Loop Media Center.  Ask me about it.  Currently decommissioned to move to an mATX setup on a new MOBO once I pick one out (getting its facelift as of June 2020 have new air cooler, drives etc.  About 60% finished.  Will no longer be a closed loop system.

Schrute: ASUS M5A99FX Pro R2.0, FX 8350, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (4x4) Corsair Vengeance DDR3 1600mhz, Sparkle/FSP 650w PSU, Corsair H100i GTX 240mm AIO w/ 12mm thick fans to fit in top exhaust, 256gb TIMETEC SSD, 1tb WDBlack HDD, Rosewill Nautilus 1.0 case.  DSI 90-Key Mechanical Keyboard w/ Cherry Red switches, Generic mouse, 37" 1080p TV

Micro Form Factor Dell OptiPlex 3040: Dell 0MGK50 A02, i3-6100T, 2x4gb DDR3 1600, Team Group 120gb SSD, 500gb Seagate 7mm HDD attached storage, Windows 10 Pro, Logitech K400+, USB Wifi adapter all vesa mounted to the back of a 37" 1080p TV for form factor in the kitchen

Linux Box: Toshiba Laptop, i7 620M, NVS graphics, 2gb ram tinker toy at the moment.  Running Manjaro at the moment

APU Laptop: I need to clean this things TIM up so it can boot into Windows 7 for more than 5 minute before overheating at idle, it has things, I just haven't been on it in 2 years or so

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4 hours ago, Tristerin said:

I would get 2x Molex to 8 pin.

 

6 pin delivers up to 75w

8 pin delivers up to 150w (double, may melt the adapter if it puts that current through or just crash)

4 pin molex delivers up to 132w on the 12v pins (from the way I understand it)

 

And since you are adding restriction in the current by using an adapter that's why I suggest getting a 2x molex to 8 pin so it shares the burden (and doesn't melt under load ;)

 

Just an FYI I just bought 2 of these 2x molex to 8 pin for a rig for these exact reasons described above.

 

 

However there are much more intelligently versed people here so wait till they also chime in

This will work fine, there are dual sata to 8 pin adapters, but I would advise against those because most of them have the crappy molded plastic SATA connectors that created the saying "molex to sata loose all your data," and I couldn't find any adapters on amazon that had the better crimped sata power connectors.

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Posted · Original PosterOP
4 minutes ago, Tristerin said:

I would get 2x Molex to 8 pin.

 

6 pin delivers up to 75w

8 pin delivers up to 150w (double, may melt the adapter if it puts that current through or just crash)

4 pin molex delivers up to 132w on the 12v pins (from the way I understand it)

 

And since you are adding restriction in the current by using an adapter that's why I suggest getting a 2x molex to 8 pin so it shares the burden (and doesn't melt under load ;)

 

Just an FYI I just bought 2 of these 2x molex to 8 pin for a rig for these exact reasons described above.

 

 

However there are much more intelligently versed people here so wait till they also chime in

Hmm interesting, I asume you have no problems with Molex adapters? 
 

if no one else says go ahead on my plan I guess i’ll have to do the same as you, but its gonna take me like an hour more in travel time:(

Im not patient enough to order it online now that I have the card.

But im still not sure if my psu is strong enough though. Thanks for the input!:)

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Just now, BoneDaddy said:

Hmm interesting, I asume you have no problems with Molex adapters? 
 

if no one else says go ahead on my plan I guess i’ll have to do the same as you, but its gonna take me like an hour more in travel time:(

Im not patient enough to order it online now that I have the card.

But im still not sure if my psu is strong enough though. Thanks for the input!:)

PSU is plenty strong enough.  65w CPU, 5700xt 225w (and you are right, 6 + 8 pin is what they should come in btw - maybe yours is a factory OC?) and 15-20w for ODD,HDD,SSD, fans.

 

Heres the thing - you can try anything :) I.E. slot gives 75w, 8 pin gives 150 (that's the 225) then hope that the other 8 pin slot doesn't draw more than 75w and your 6 pin to 8 pin will work just fine.

 

BUT I have the same option as you (free 6 pin), and knowing what I know I went with 2x Molex to 8 pin (bought 2, only needed 1, got the second cause I may need one in the future and it was super cheap shipped).  Im powering an R9 Fury Nitro+ so couldn't take the risk with a 6 pin to 8 pin with that power hungry manimal.


Workstation Laptop: Dell Precision 7540, Xeon E-2276M, 32gb DDR4, Quadro T2000 GPU, 4k display

Ryzen Rig 2: ASrock B450 Pro4 ATX, Ryzen 7 1700 @ 4.2ghz all core 1.4vCore, AMD R9 Fury X w/ Swiftech KOMODO waterblock, Custom Loop 2x240mm + 1x120mm radiators in push/pull 16gb (2x8) 3600mhz V-Color Skywalker (or 4x8gb DDR4 2666mhz for large tasks), Corsair HX850 PSU, 128gb Patriot Scorch NVMe Win 10 boot drive, 500gb Samsung 840 EVO SSD, CoolerMaster HAF XM Case.  Zalman K600S keyboard, Zalman ZM-GM1 mouse, Hannspree HF207 and Acer AL2016W monitors

https://www.3dmark.com/3dm/37004594?

Ryzen Rig 1: ASUS B350-PRIME ATX, Ryzen 7 1700, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (2x8) 3200mhz V-Color Skywalker, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, Cougar MX330-X Case.  Zalman K600S keyboard, Zalman ZM-GM1 mouse, Acer XF270HU 2560x1440 144hz IPS monitor

https://www.3dmark.com/3dm/37628874?

Dwight: The Mixed Metals Loop Media Center.  Ask me about it.  Currently decommissioned to move to an mATX setup on a new MOBO once I pick one out (getting its facelift as of June 2020 have new air cooler, drives etc.  About 60% finished.  Will no longer be a closed loop system.

Schrute: ASUS M5A99FX Pro R2.0, FX 8350, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (4x4) Corsair Vengeance DDR3 1600mhz, Sparkle/FSP 650w PSU, Corsair H100i GTX 240mm AIO w/ 12mm thick fans to fit in top exhaust, 256gb TIMETEC SSD, 1tb WDBlack HDD, Rosewill Nautilus 1.0 case.  DSI 90-Key Mechanical Keyboard w/ Cherry Red switches, Generic mouse, 37" 1080p TV

Micro Form Factor Dell OptiPlex 3040: Dell 0MGK50 A02, i3-6100T, 2x4gb DDR3 1600, Team Group 120gb SSD, 500gb Seagate 7mm HDD attached storage, Windows 10 Pro, Logitech K400+, USB Wifi adapter all vesa mounted to the back of a 37" 1080p TV for form factor in the kitchen

Linux Box: Toshiba Laptop, i7 620M, NVS graphics, 2gb ram tinker toy at the moment.  Running Manjaro at the moment

APU Laptop: I need to clean this things TIM up so it can boot into Windows 7 for more than 5 minute before overheating at idle, it has things, I just haven't been on it in 2 years or so

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13 minutes ago, PeterPorker3 said:

This will work fine, there are dual sata to 8 pin adapters, but I would advise against those because most of them have the crappy molded plastic SATA connectors that created the saying "molex to sata loose all your data," and I couldn't find any adapters on amazon that had the better crimped sata power connectors.

Yup that's why I suggest split molex since molex theoretically can handle the power delivery, the pins/resistance/shitty housing probably cannot over sustained duration :)


Workstation Laptop: Dell Precision 7540, Xeon E-2276M, 32gb DDR4, Quadro T2000 GPU, 4k display

Ryzen Rig 2: ASrock B450 Pro4 ATX, Ryzen 7 1700 @ 4.2ghz all core 1.4vCore, AMD R9 Fury X w/ Swiftech KOMODO waterblock, Custom Loop 2x240mm + 1x120mm radiators in push/pull 16gb (2x8) 3600mhz V-Color Skywalker (or 4x8gb DDR4 2666mhz for large tasks), Corsair HX850 PSU, 128gb Patriot Scorch NVMe Win 10 boot drive, 500gb Samsung 840 EVO SSD, CoolerMaster HAF XM Case.  Zalman K600S keyboard, Zalman ZM-GM1 mouse, Hannspree HF207 and Acer AL2016W monitors

https://www.3dmark.com/3dm/37004594?

Ryzen Rig 1: ASUS B350-PRIME ATX, Ryzen 7 1700, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (2x8) 3200mhz V-Color Skywalker, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, Cougar MX330-X Case.  Zalman K600S keyboard, Zalman ZM-GM1 mouse, Acer XF270HU 2560x1440 144hz IPS monitor

https://www.3dmark.com/3dm/37628874?

Dwight: The Mixed Metals Loop Media Center.  Ask me about it.  Currently decommissioned to move to an mATX setup on a new MOBO once I pick one out (getting its facelift as of June 2020 have new air cooler, drives etc.  About 60% finished.  Will no longer be a closed loop system.

Schrute: ASUS M5A99FX Pro R2.0, FX 8350, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (4x4) Corsair Vengeance DDR3 1600mhz, Sparkle/FSP 650w PSU, Corsair H100i GTX 240mm AIO w/ 12mm thick fans to fit in top exhaust, 256gb TIMETEC SSD, 1tb WDBlack HDD, Rosewill Nautilus 1.0 case.  DSI 90-Key Mechanical Keyboard w/ Cherry Red switches, Generic mouse, 37" 1080p TV

Micro Form Factor Dell OptiPlex 3040: Dell 0MGK50 A02, i3-6100T, 2x4gb DDR3 1600, Team Group 120gb SSD, 500gb Seagate 7mm HDD attached storage, Windows 10 Pro, Logitech K400+, USB Wifi adapter all vesa mounted to the back of a 37" 1080p TV for form factor in the kitchen

Linux Box: Toshiba Laptop, i7 620M, NVS graphics, 2gb ram tinker toy at the moment.  Running Manjaro at the moment

APU Laptop: I need to clean this things TIM up so it can boot into Windows 7 for more than 5 minute before overheating at idle, it has things, I just haven't been on it in 2 years or so

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Posted · Original PosterOP · Best Answer
8 minutes ago, Tristerin said:

PSU is plenty strong enough.  65w CPU, 5700xt 225w (and you are right, 6 + 8 pin is what they should come in btw - maybe yours is a factory OC?) and 15-20w for ODD,HDD,SSD, fans.

 

Heres the thing - you can try anything :) I.E. slot gives 75w, 8 pin gives 150 (that's the 225) then hope that the other 8 pin slot doesn't draw more than 75w and your 6 pin to 8 pin will work just fine.

 

BUT I have the same option as you (free 6 pin), and knowing what I know I went with 2x Molex to 8 pin (bought 2, only needed 1, got the second cause I may need one in the future and it was super cheap shipped).  Im powering an R9 Fury Nitro+ so couldn't take the risk with a 6 pin to 8 pin with that power hungry manimal.

Yeah its oc and can reach 279w at Furmark acording to techpowerup, less during regular use tho. Guess it’ll be fine and im gonna go for 6->8pin for the science (and the part of me that hates the bus and is super lazy). Thanks for the help, appreciate it:)

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Posted · Original PosterOP

Ok update time. I bought 6->8pin adapter/converter and it works fine if anyone ever wonders. Also 550w psu works fine with a reasonably high overclocked 5700 xt.

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