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Dual PSU's 2x R9 390

post #1 of 4
Thread Starter 
Hello all i have a 650watt PSU from super flower (http://www.super-flower.com.tw/products_detail.php?class=2&sn=6&ID=23&lang=en) which is connected to a single r9 390 and the rest of the system.

I also have another VS 650 from corsair PSU, i want to try crossfiring the 2x r9 390's just for few hours to do some benches
If i connect the corsair psu to the 2nd r9 390 will it be okay?

I have read some posts on here and in other sites too about dual PSU that is not safe.

What do you recommend? Whats the worst case scenario ?

How can i safely run 2x GPU's with dual PSU just for a few hours?

PS: I DONT HAVE THE PSU ADAPTER, its a little bit expensive and atm i cant afford it tongue.gif

any tips/tricks?

thanks
Black Panther
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Nitro
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Red Panther
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Intel i5 6600K @ 4.4GHz ASUS Z170 PRO GAMING 6870 G.Skill RipjawsV 16GB DDR4-2400MHz  
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Samsung 820 120GB SSD Samsung 840 EVO 250GB SSD Samsung 850 EVO 250GB SSD Western Digital Blue 500GB 
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Cooler Master 412s - CPU Cooler (push/pull) Windows 10 Samsung LED S22D300 Corsair Strafe RGB Cherry MX Red switches 
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Optical DriveCoolingOSMonitor
Pioneer Bluray Reader/Writer 2x NZXT NS-F200 Fans Windows 8 Pro LG 27" FULL HD 
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Black Panther
(16 items)
 
Nitro
(6 items)
 
Red Panther
(15 items)
 
CPUMotherboardGraphicsRAM
Intel i5 6600K @ 4.4GHz ASUS Z170 PRO GAMING 6870 G.Skill RipjawsV 16GB DDR4-2400MHz  
Hard DriveHard DriveHard DriveHard Drive
Samsung 820 120GB SSD Samsung 840 EVO 250GB SSD Samsung 850 EVO 250GB SSD Western Digital Blue 500GB 
CoolingOSMonitorKeyboard
Cooler Master 412s - CPU Cooler (push/pull) Windows 10 Samsung LED S22D300 Corsair Strafe RGB Cherry MX Red switches 
PowerCaseMouseMouse Pad
Corsair RM650x Corsair 400C ROCCAT TYON Razer Goliathus Speed Extended 
CPUMotherboardGraphicsRAM
i7-4710HQ Acer GTX 860m 8 GB 
Hard DriveHard Drive
WD Blue Kingston SSD 
CPUMotherboardGraphicsRAM
AMD FX 8350 Black Edition @ 4.22Ghz ASUS CROSSHAIR V FORMULA Z Sapphire 7870 Flex GHz edition G Skill TridentX 16GB @2133Mhz 
Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda 7200rpm (RAID 1) Seagate Barracuda 7200rpm (RAID 1) Samsung 840 PRO (RAID 0) Samsung 840 PRO (RAID 0) 
Optical DriveCoolingOSMonitor
Pioneer Bluray Reader/Writer 2x NZXT NS-F200 Fans Windows 8 Pro LG 27" FULL HD 
MonitorPowerCase
Samsung MultiTouch 22" FULL HD Zalman ZM750-XG Gold NZXT 820 
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post #2 of 4
You should really not be using a Corsair VS in a system like that.
You would be better off to get a better and bigger PSU before you add any more video cards.
Seravee
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Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
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x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
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Seravee
(26 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
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post #3 of 4
Thread Starter 
The point is that I don't have any money left ATM to get another PSU..it would be a waste of money just to get a PSU for using the cards only few hours
Black Panther
(16 items)
 
Nitro
(6 items)
 
Red Panther
(15 items)
 
CPUMotherboardGraphicsRAM
Intel i5 6600K @ 4.4GHz ASUS Z170 PRO GAMING 6870 G.Skill RipjawsV 16GB DDR4-2400MHz  
Hard DriveHard DriveHard DriveHard Drive
Samsung 820 120GB SSD Samsung 840 EVO 250GB SSD Samsung 850 EVO 250GB SSD Western Digital Blue 500GB 
CoolingOSMonitorKeyboard
Cooler Master 412s - CPU Cooler (push/pull) Windows 10 Samsung LED S22D300 Corsair Strafe RGB Cherry MX Red switches 
PowerCaseMouseMouse Pad
Corsair RM650x Corsair 400C ROCCAT TYON Razer Goliathus Speed Extended 
CPUMotherboardGraphicsRAM
i7-4710HQ Acer GTX 860m 8 GB 
Hard DriveHard Drive
WD Blue Kingston SSD 
CPUMotherboardGraphicsRAM
AMD FX 8350 Black Edition @ 4.22Ghz ASUS CROSSHAIR V FORMULA Z Sapphire 7870 Flex GHz edition G Skill TridentX 16GB @2133Mhz 
Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda 7200rpm (RAID 1) Seagate Barracuda 7200rpm (RAID 1) Samsung 840 PRO (RAID 0) Samsung 840 PRO (RAID 0) 
Optical DriveCoolingOSMonitor
Pioneer Bluray Reader/Writer 2x NZXT NS-F200 Fans Windows 8 Pro LG 27" FULL HD 
MonitorPowerCase
Samsung MultiTouch 22" FULL HD Zalman ZM750-XG Gold NZXT 820 
  hide details  
Reply
Black Panther
(16 items)
 
Nitro
(6 items)
 
Red Panther
(15 items)
 
CPUMotherboardGraphicsRAM
Intel i5 6600K @ 4.4GHz ASUS Z170 PRO GAMING 6870 G.Skill RipjawsV 16GB DDR4-2400MHz  
Hard DriveHard DriveHard DriveHard Drive
Samsung 820 120GB SSD Samsung 840 EVO 250GB SSD Samsung 850 EVO 250GB SSD Western Digital Blue 500GB 
CoolingOSMonitorKeyboard
Cooler Master 412s - CPU Cooler (push/pull) Windows 10 Samsung LED S22D300 Corsair Strafe RGB Cherry MX Red switches 
PowerCaseMouseMouse Pad
Corsair RM650x Corsair 400C ROCCAT TYON Razer Goliathus Speed Extended 
CPUMotherboardGraphicsRAM
i7-4710HQ Acer GTX 860m 8 GB 
Hard DriveHard Drive
WD Blue Kingston SSD 
CPUMotherboardGraphicsRAM
AMD FX 8350 Black Edition @ 4.22Ghz ASUS CROSSHAIR V FORMULA Z Sapphire 7870 Flex GHz edition G Skill TridentX 16GB @2133Mhz 
Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda 7200rpm (RAID 1) Seagate Barracuda 7200rpm (RAID 1) Samsung 840 PRO (RAID 0) Samsung 840 PRO (RAID 0) 
Optical DriveCoolingOSMonitor
Pioneer Bluray Reader/Writer 2x NZXT NS-F200 Fans Windows 8 Pro LG 27" FULL HD 
MonitorPowerCase
Samsung MultiTouch 22" FULL HD Zalman ZM750-XG Gold NZXT 820 
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Reply
post #4 of 4
You said you dont even have money for an adaptor yet alone a PSU.
The adaptor is cheaper then a PSU is so if you dont have any money pretty all you can do is wait untill you do.
Seravee
(26 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
Seravee
(26 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
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