Overclock.net › Forums › Graphics Cards › NVIDIA › SLI Power Question, Is this possible ?
New Posts  All Forums:Forum Nav:

SLI Power Question, Is this possible ?

post #1 of 6
Thread Starter 
hello there guys,

I am not really into wiring schematics of power supplyes, but, this is my question....

Is there a way to get dedicated power to SLI videocards ?

Example,

The computer has a 450 watt supply...

Now we need more juice to feed 2 GTX 580's ...
Can we power the 2 GTX 580's from a separate power supply ???...

Thanks guys.

I know it sounds kind of sily, but when you buy an Alienware System (just because of the $66 Dollars P month option no interest 1 year, which is cheaper than cigarrets) thats the problem we get stuck with...

Lol Alienware Aurora R3 has a 875 power supply, but I wouldn't risk putting 2 580's on it, Hell no... I am willing to get another PSU, and adapt it (i don't know how to activate the secondary power supply with(i will probably put a switch once I learn the wiring diagram)) ...

Is there such thing as a external power supply to dedicate to Video Card ?

Thanks guys
Super Athlon
(13 items)
 
Ultra Intel
(14 items)
 
 
CPUMotherboardGraphicsRAM
Athlon 64 FX-62 Windsor GIGABYTE GA-M59SLI-S5 AM2 ATI RADEON HD 5770 SUPER TALENT 4GB (4 x 1GB) 240-Pin DDR2 800 
Hard DriveOSMonitorKeyboard
SCSI 15000 RPM OS + 250GB 7200 SATA II Linux 9.10 Karmic Kaola EMPTY ATM Saitek Ultra 
PowerCaseMouseMouse Pad
750W cheap one Custom Made DYNEX DELL 
CPUMotherboardGraphicsRAM
Intel I7 2600K S 1155 046MHW 1 x GTX 980 8GB DDR3 Cas9 1866Mhz 
Hard DriveHard DriveCoolingOS
2x Vertex 3 Raid 0 2x TB Raid 0 Hitachi Storage Hydro H70 7 Ultimage + Linux Gutsy 7.10 
MonitorKeyboardPowerCase
VX2268WM Saitek Ultra 875 WATTS Alien Aurora R3 Modded 
MouseMouse Pad
G9X Xtrac RIPPER 
CPUMotherboardGraphicsRAM
PHENOM II X4 955 4.0 GHZ 790FX-GD70 GTX 480 8192 
Hard DriveOSMonitorKeyboard
2 SSD Vertex 2 @ Raid 0. 2 250HDD's @ Raid 0 1 350 Linux 7.10 Gutsy + Windows 7 Ultimate 64 Samsung 21.5 Saitek Ultra 
PowerCaseMouseMouse Pad
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3 Thermaltake Armor A90 Black Steel DYNEX DELL 
  hide details  
Reply
Super Athlon
(13 items)
 
Ultra Intel
(14 items)
 
 
CPUMotherboardGraphicsRAM
Athlon 64 FX-62 Windsor GIGABYTE GA-M59SLI-S5 AM2 ATI RADEON HD 5770 SUPER TALENT 4GB (4 x 1GB) 240-Pin DDR2 800 
Hard DriveOSMonitorKeyboard
SCSI 15000 RPM OS + 250GB 7200 SATA II Linux 9.10 Karmic Kaola EMPTY ATM Saitek Ultra 
PowerCaseMouseMouse Pad
750W cheap one Custom Made DYNEX DELL 
CPUMotherboardGraphicsRAM
Intel I7 2600K S 1155 046MHW 1 x GTX 980 8GB DDR3 Cas9 1866Mhz 
Hard DriveHard DriveCoolingOS
2x Vertex 3 Raid 0 2x TB Raid 0 Hitachi Storage Hydro H70 7 Ultimage + Linux Gutsy 7.10 
MonitorKeyboardPowerCase
VX2268WM Saitek Ultra 875 WATTS Alien Aurora R3 Modded 
MouseMouse Pad
G9X Xtrac RIPPER 
CPUMotherboardGraphicsRAM
PHENOM II X4 955 4.0 GHZ 790FX-GD70 GTX 480 8192 
Hard DriveOSMonitorKeyboard
2 SSD Vertex 2 @ Raid 0. 2 250HDD's @ Raid 0 1 350 Linux 7.10 Gutsy + Windows 7 Ultimate 64 Samsung 21.5 Saitek Ultra 
PowerCaseMouseMouse Pad
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3 Thermaltake Armor A90 Black Steel DYNEX DELL 
  hide details  
Reply
post #2 of 6
There are drive bay PSUs made specifically to power video cards - but they're not cheap. You could also daisy chain two power supplies in the same computer, but as far as I know there's no 'external' PSU for this kind of thing.
post #3 of 6
Thread Starter 
Is this the answer to my question ????

http://www.overclock.net/faqs/15751-...two-power.html



Quote:
Originally Posted by Broseidon View Post
There are drive bay PSUs made specifically to power video cards - but they're not cheap. You could also daisy chain two power supplies in the same computer, but as far as I know there's no 'external' PSU for this kind of thing.
Can you please provide me the link fo the PSU made to power videocards (if youhave it) I think it will be better... Thanks man ...

I think theres a big change Alien (dell) modified the 24 pin connector wire order... It could become a headache you know...
Super Athlon
(13 items)
 
Ultra Intel
(14 items)
 
 
CPUMotherboardGraphicsRAM
Athlon 64 FX-62 Windsor GIGABYTE GA-M59SLI-S5 AM2 ATI RADEON HD 5770 SUPER TALENT 4GB (4 x 1GB) 240-Pin DDR2 800 
Hard DriveOSMonitorKeyboard
SCSI 15000 RPM OS + 250GB 7200 SATA II Linux 9.10 Karmic Kaola EMPTY ATM Saitek Ultra 
PowerCaseMouseMouse Pad
750W cheap one Custom Made DYNEX DELL 
CPUMotherboardGraphicsRAM
Intel I7 2600K S 1155 046MHW 1 x GTX 980 8GB DDR3 Cas9 1866Mhz 
Hard DriveHard DriveCoolingOS
2x Vertex 3 Raid 0 2x TB Raid 0 Hitachi Storage Hydro H70 7 Ultimage + Linux Gutsy 7.10 
MonitorKeyboardPowerCase
VX2268WM Saitek Ultra 875 WATTS Alien Aurora R3 Modded 
MouseMouse Pad
G9X Xtrac RIPPER 
CPUMotherboardGraphicsRAM
PHENOM II X4 955 4.0 GHZ 790FX-GD70 GTX 480 8192 
Hard DriveOSMonitorKeyboard
2 SSD Vertex 2 @ Raid 0. 2 250HDD's @ Raid 0 1 350 Linux 7.10 Gutsy + Windows 7 Ultimate 64 Samsung 21.5 Saitek Ultra 
PowerCaseMouseMouse Pad
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3 Thermaltake Armor A90 Black Steel DYNEX DELL 
  hide details  
Reply
Super Athlon
(13 items)
 
Ultra Intel
(14 items)
 
 
CPUMotherboardGraphicsRAM
Athlon 64 FX-62 Windsor GIGABYTE GA-M59SLI-S5 AM2 ATI RADEON HD 5770 SUPER TALENT 4GB (4 x 1GB) 240-Pin DDR2 800 
Hard DriveOSMonitorKeyboard
SCSI 15000 RPM OS + 250GB 7200 SATA II Linux 9.10 Karmic Kaola EMPTY ATM Saitek Ultra 
PowerCaseMouseMouse Pad
750W cheap one Custom Made DYNEX DELL 
CPUMotherboardGraphicsRAM
Intel I7 2600K S 1155 046MHW 1 x GTX 980 8GB DDR3 Cas9 1866Mhz 
Hard DriveHard DriveCoolingOS
2x Vertex 3 Raid 0 2x TB Raid 0 Hitachi Storage Hydro H70 7 Ultimage + Linux Gutsy 7.10 
MonitorKeyboardPowerCase
VX2268WM Saitek Ultra 875 WATTS Alien Aurora R3 Modded 
MouseMouse Pad
G9X Xtrac RIPPER 
CPUMotherboardGraphicsRAM
PHENOM II X4 955 4.0 GHZ 790FX-GD70 GTX 480 8192 
Hard DriveOSMonitorKeyboard
2 SSD Vertex 2 @ Raid 0. 2 250HDD's @ Raid 0 1 350 Linux 7.10 Gutsy + Windows 7 Ultimate 64 Samsung 21.5 Saitek Ultra 
PowerCaseMouseMouse Pad
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3 Thermaltake Armor A90 Black Steel DYNEX DELL 
  hide details  
Reply
post #4 of 6
If you don't care about a PSU laying around, you can most definiately short out another PSU with the green/black wire method and use it to power your graphics cards. There is no issue at all other than having another PSU laying around lol.
T.I.D
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500k Asus Sabertooth P67 Rev.3 SLI (2x) MSI 560-ti Twin Frozr II 16GB 1.25v PC12800 G.skill 
Hard DriveOptical DriveOSMonitor
Raid 0 1.5TB HDDs; (boot)Raid 0 60GB SDDs Asus DVD burner Win7 Ultimate 64bit 27" LED Asus 1920x1080 
KeyboardPowerCaseMouse
Razer BlackWidow Mechanical 900w Antec Gamer Series Azza Hurrican 2000R Logitech G9x 
  hide details  
Reply
T.I.D
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500k Asus Sabertooth P67 Rev.3 SLI (2x) MSI 560-ti Twin Frozr II 16GB 1.25v PC12800 G.skill 
Hard DriveOptical DriveOSMonitor
Raid 0 1.5TB HDDs; (boot)Raid 0 60GB SDDs Asus DVD burner Win7 Ultimate 64bit 27" LED Asus 1920x1080 
KeyboardPowerCaseMouse
Razer BlackWidow Mechanical 900w Antec Gamer Series Azza Hurrican 2000R Logitech G9x 
  hide details  
Reply
post #5 of 6
The link you provided is the answer to your question
Case Labs th10
(21 items)
 
   
CPUMotherboardGraphicsRAM
970 evga 4way 2 gtx590 6gigs muskin ram 
Hard DriveOptical DriveCoolingCooling
2tb wd,128 ssd/crucial lg dvd koolance gtx590 block x 2 white heatkiller 
CoolingCoolingCoolingCooling
RX480 rad x2 MCP35x (X2) gentle typhoons 1850 rpm (8) xigamtek fans  
OSMonitorKeyboardPower
win pro 64bit samsung 2343 x3 6144x1152 logitech g19 silverstone 1500watt 
CaseMouseMouse PadAudio
case labs th10 deathadder 3500dpi cheap one Creative Sound Blaster X-Fi Titanium Fatal1ty C... 
Other
XSPC dual bay reservoir  
  hide details  
Reply
Case Labs th10
(21 items)
 
   
CPUMotherboardGraphicsRAM
970 evga 4way 2 gtx590 6gigs muskin ram 
Hard DriveOptical DriveCoolingCooling
2tb wd,128 ssd/crucial lg dvd koolance gtx590 block x 2 white heatkiller 
CoolingCoolingCoolingCooling
RX480 rad x2 MCP35x (X2) gentle typhoons 1850 rpm (8) xigamtek fans  
OSMonitorKeyboardPower
win pro 64bit samsung 2343 x3 6144x1152 logitech g19 silverstone 1500watt 
CaseMouseMouse PadAudio
case labs th10 deathadder 3500dpi cheap one Creative Sound Blaster X-Fi Titanium Fatal1ty C... 
Other
XSPC dual bay reservoir  
  hide details  
Reply
post #6 of 6
Thread Starter 
Niceee !!!!!!!!!!!

Lol, now I need to make room for the new PSU ... How many watts would you guys say is enough for 2 GTX 580's SLI ??? Since it will be dedicated to them it doesn't have to be too crazy...

I will mount it in the CD DRIVE room section of the case ...
Super Athlon
(13 items)
 
Ultra Intel
(14 items)
 
 
CPUMotherboardGraphicsRAM
Athlon 64 FX-62 Windsor GIGABYTE GA-M59SLI-S5 AM2 ATI RADEON HD 5770 SUPER TALENT 4GB (4 x 1GB) 240-Pin DDR2 800 
Hard DriveOSMonitorKeyboard
SCSI 15000 RPM OS + 250GB 7200 SATA II Linux 9.10 Karmic Kaola EMPTY ATM Saitek Ultra 
PowerCaseMouseMouse Pad
750W cheap one Custom Made DYNEX DELL 
CPUMotherboardGraphicsRAM
Intel I7 2600K S 1155 046MHW 1 x GTX 980 8GB DDR3 Cas9 1866Mhz 
Hard DriveHard DriveCoolingOS
2x Vertex 3 Raid 0 2x TB Raid 0 Hitachi Storage Hydro H70 7 Ultimage + Linux Gutsy 7.10 
MonitorKeyboardPowerCase
VX2268WM Saitek Ultra 875 WATTS Alien Aurora R3 Modded 
MouseMouse Pad
G9X Xtrac RIPPER 
CPUMotherboardGraphicsRAM
PHENOM II X4 955 4.0 GHZ 790FX-GD70 GTX 480 8192 
Hard DriveOSMonitorKeyboard
2 SSD Vertex 2 @ Raid 0. 2 250HDD's @ Raid 0 1 350 Linux 7.10 Gutsy + Windows 7 Ultimate 64 Samsung 21.5 Saitek Ultra 
PowerCaseMouseMouse Pad
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3 Thermaltake Armor A90 Black Steel DYNEX DELL 
  hide details  
Reply
Super Athlon
(13 items)
 
Ultra Intel
(14 items)
 
 
CPUMotherboardGraphicsRAM
Athlon 64 FX-62 Windsor GIGABYTE GA-M59SLI-S5 AM2 ATI RADEON HD 5770 SUPER TALENT 4GB (4 x 1GB) 240-Pin DDR2 800 
Hard DriveOSMonitorKeyboard
SCSI 15000 RPM OS + 250GB 7200 SATA II Linux 9.10 Karmic Kaola EMPTY ATM Saitek Ultra 
PowerCaseMouseMouse Pad
750W cheap one Custom Made DYNEX DELL 
CPUMotherboardGraphicsRAM
Intel I7 2600K S 1155 046MHW 1 x GTX 980 8GB DDR3 Cas9 1866Mhz 
Hard DriveHard DriveCoolingOS
2x Vertex 3 Raid 0 2x TB Raid 0 Hitachi Storage Hydro H70 7 Ultimage + Linux Gutsy 7.10 
MonitorKeyboardPowerCase
VX2268WM Saitek Ultra 875 WATTS Alien Aurora R3 Modded 
MouseMouse Pad
G9X Xtrac RIPPER 
CPUMotherboardGraphicsRAM
PHENOM II X4 955 4.0 GHZ 790FX-GD70 GTX 480 8192 
Hard DriveOSMonitorKeyboard
2 SSD Vertex 2 @ Raid 0. 2 250HDD's @ Raid 0 1 350 Linux 7.10 Gutsy + Windows 7 Ultimate 64 Samsung 21.5 Saitek Ultra 
PowerCaseMouseMouse Pad
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3 Thermaltake Armor A90 Black Steel DYNEX DELL 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › SLI Power Question, Is this possible ?