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FlushaDev

Powering GPU with 2 PSUs

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Posted · Original PosterOP

Hello to the community,

I have a GTX 970 NVIDIA Founders, and my PSU has only one 6Pin while the card needs 2 6Pin connectors, I connected 1 six pin from the main PSU and the other 6 pin from the other external PSU, the GPU worked normally, but it wasn't detected in windows, then I just powered it with the 6 Pin from the main power supply only and the GPU was recognised but device manager spit out "Code 43: Windows stopped this device because it is causing problems" I have already ordered another PSU, I just wanted to know if it's possible to power it while I wait for the PSU to arrive.

Thanks!


"The only way to do great work, is do do what you love." -Steve Jobs

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No

And what PSU did you get?
What PSU do you have??


It might also be possible that you killed your GPU with your other PSU.


"Hell is full of good meanings, but Heaven is full of good works"

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Posted · Original PosterOP
Just now, Stefan Payne said:

No

And what PSU did you get?
What PSU do you have??


It might also be possible that you killed your GPU with your other PSU.

I got a be quiet 80+ gold one

The PSU I have is an 80+ bronze one

And no it get's detected even after I powered it with the PSUs so we're good


"The only way to do great work, is do do what you love." -Steve Jobs

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Bad idea if you don't know what you're doing.

 

If the 2nd power supply is only powering the GPU then chances are it's sending dirty power to it or simply voltage through the signal wire which means only a tiny amount of current reaches the card, what you need, especially if this PSU is unbranded (cheapo type) is to balance loads on all rails to make it work properly, a simple contact between the green wire and a ground isn't enough for this scenario in particular, to do it properly you'll need to solder, rewire, cut and add transistors, resistors and fuses. I've done it and I'm running a dual PSU config right now except my aux unit is mainly for fans and special purposes.

 

Is it worth to do this? well, for just a few days and only a graphics card not at all


ASUS X470-PRO • R7 1700 4GHz • Corsair H110i GT P/P • 2x MSI RX 480 8G • Corsair DP 2x8 @3466 • EVGA 750 G2 • Corsair 730T • Crucial MX500 250GB • WD 4TB

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7 minutes ago, FlushaDev said:

I got a be quiet 80+ gold one

The PSU I have is an 80+ bronze one

And no it get's detected even after I powered it with the PSUs so we're good

Power efficiency and a company name do not help. The exact model name that is listed on the PSU and wattage would help.


VashTheStampede 4.0:

CPU: AMD Threadripper 1950x | CPU Cooling: EKWB Liquid Cooling(EK-Supremacy sTR4 RGB - Nickel, EK-CoolStream SE 280, EK-Vardar EVO 140ER Black x 2, EK-XRES 100 SPC-60 MX PWM (incl. pump), EK-ACF Fitting 10/13mm - Red (6-pack), EK-DuraClear 9,5/12,7mm 3M, and Scarlet Red Premix) | Compound: Thermal Grizzly Kryonaut | Mobo: Asrock X399 Taichi | Ram: G.Skill Ripjaws V 32GBs (2x16) DDR4-3200 | Storage: Crucial MX500 500GB M.2-2280 SSD/PNY CS900 240GB SSD/Toshiba X300 4TB 7200RPM | GPU: Zotac Geforce GTX 1080 8GB AMP! Edition(Replacing with a Radeon VII | Case: Fractal Define R5 Blackout Edition w/Window | PSU: EVGA SuperNOVA G2 750W 80+ Gold | Operating System: Windows 10 Pro | Keyboard: Ducky Shine 7 Blackout Edition with Cherry MX Silent Reds | Mouse: Corsair M65 Pro RGB FPS | Headphones:  AKG K7XX Mass Drop Editions(Replacing with k712s) | Mic: Audio-Technica ATR2500 | Speakers: Mackie MR624 Studio Monitors

 

Surtr:

CPU: AMD Ryzen 3 2200G(Temp/Upping to a Zen 2 Ryzen 7) | CPU Cooling: Wraith(Dark Rock Pro 4 when I get the 3700x or 3800x) | Compound: Thermal Grizzly Kryronaut | Mobo: Asrock x470 Taichi | Ram: G.Skill Ripjaws V 16GBs (2x8) DDR4-3200 | Storage: PNY - BX500 240 GB SSD+Seagate Constellation ES.3 1TB 7200RPM | GPU: EVGA - GeForce GTX 770 2GB /02G-P4-2770-KR(Temp/getting a Navi card later this year) | Case: Corsair - SPEC-DELTA RGB | PSU: EVGA SuperNOVA G2 750W 80+ Gold | Optical Drive: Random HP DVD Drive | Operating System: Windows 10 | Keyboard: Corsair K70 with Cherry MX Reds | Mouse: Corsair M65 Pro RGB FPS Speakers: JBL LSR 305 Studio Monitors(At some point)

 

Prince of Dark Rock:

CPU: AMD Ryzen 5 2600 | CPU Cooling: be quiet! - Dark Rock Pro 4 | Compound: Thermal Grizzly Kryronaut | Mobo: MSI B450 Tomahawki | Ram: G.Skill Ripjaws V 8GBs (2x4) DDR4-3200 | Storage: Crucial - BX200 240 GB SSD+Seagate Constellation ES.3 1TB 7200RPM | GPU: EVGA - GeForce GTX 1060 6GB SSC | Case: Cooler Master - MasterBox MB511 | PSU: Corsair - CXM 550W | Optical Drive: Random HP DVD Drive | Operating System: Windows 10 Home | Keyboard: Rosewill - NEON K85 RGB BR | Mouse: Razer DeathAdder Elite Destiny 2 Edition 

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Posted · Original PosterOP
2 minutes ago, valdyrgramr said:

Power efficiency and a company name do not help.  What exact model name is listed on the PSU and wattage would help too.

The PSU I'm buying is

Name: Pure Power 11 500W CM

Model Number: BN297

Site I ordered from: https://www.amazon.de/gp/product/B07JHLD38L/


"The only way to do great work, is do do what you love." -Steve Jobs

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4 minutes ago, FlushaDev said:

The PSU I'm buying is

Name: Pure Power 11 500W CM

Model Number: BN297

Site I ordered from: https://www.amazon.de/gp/product/B07JHLD38L/

That's fine.


VashTheStampede 4.0:

CPU: AMD Threadripper 1950x | CPU Cooling: EKWB Liquid Cooling(EK-Supremacy sTR4 RGB - Nickel, EK-CoolStream SE 280, EK-Vardar EVO 140ER Black x 2, EK-XRES 100 SPC-60 MX PWM (incl. pump), EK-ACF Fitting 10/13mm - Red (6-pack), EK-DuraClear 9,5/12,7mm 3M, and Scarlet Red Premix) | Compound: Thermal Grizzly Kryonaut | Mobo: Asrock X399 Taichi | Ram: G.Skill Ripjaws V 32GBs (2x16) DDR4-3200 | Storage: Crucial MX500 500GB M.2-2280 SSD/PNY CS900 240GB SSD/Toshiba X300 4TB 7200RPM | GPU: Zotac Geforce GTX 1080 8GB AMP! Edition(Replacing with a Radeon VII | Case: Fractal Define R5 Blackout Edition w/Window | PSU: EVGA SuperNOVA G2 750W 80+ Gold | Operating System: Windows 10 Pro | Keyboard: Ducky Shine 7 Blackout Edition with Cherry MX Silent Reds | Mouse: Corsair M65 Pro RGB FPS | Headphones:  AKG K7XX Mass Drop Editions(Replacing with k712s) | Mic: Audio-Technica ATR2500 | Speakers: Mackie MR624 Studio Monitors

 

Surtr:

CPU: AMD Ryzen 3 2200G(Temp/Upping to a Zen 2 Ryzen 7) | CPU Cooling: Wraith(Dark Rock Pro 4 when I get the 3700x or 3800x) | Compound: Thermal Grizzly Kryronaut | Mobo: Asrock x470 Taichi | Ram: G.Skill Ripjaws V 16GBs (2x8) DDR4-3200 | Storage: PNY - BX500 240 GB SSD+Seagate Constellation ES.3 1TB 7200RPM | GPU: EVGA - GeForce GTX 770 2GB /02G-P4-2770-KR(Temp/getting a Navi card later this year) | Case: Corsair - SPEC-DELTA RGB | PSU: EVGA SuperNOVA G2 750W 80+ Gold | Optical Drive: Random HP DVD Drive | Operating System: Windows 10 | Keyboard: Corsair K70 with Cherry MX Reds | Mouse: Corsair M65 Pro RGB FPS Speakers: JBL LSR 305 Studio Monitors(At some point)

 

Prince of Dark Rock:

CPU: AMD Ryzen 5 2600 | CPU Cooling: be quiet! - Dark Rock Pro 4 | Compound: Thermal Grizzly Kryronaut | Mobo: MSI B450 Tomahawki | Ram: G.Skill Ripjaws V 8GBs (2x4) DDR4-3200 | Storage: Crucial - BX200 240 GB SSD+Seagate Constellation ES.3 1TB 7200RPM | GPU: EVGA - GeForce GTX 1060 6GB SSC | Case: Cooler Master - MasterBox MB511 | PSU: Corsair - CXM 550W | Optical Drive: Random HP DVD Drive | Operating System: Windows 10 Home | Keyboard: Rosewill - NEON K85 RGB BR | Mouse: Razer DeathAdder Elite Destiny 2 Edition 

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