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3rd Graphics Card for Second Monitor

post #1 of 5
Thread Starter 
I currently have a 750w PSU with 2x GTX 260s running. I also have a 24" monitor as primary and an old 17" on the side. I noticed when I play games (only on the 24", the 17" is idling on forums or youtube) I get anywhere from a 4-15fps decrease (confirmed when benching with second monitor disabled). So if I plug in my old geforce gt 210 to handle the second monitor, will i see an fps gain similar to not having the monitor on with only 2 graphics card? Also would my PSU be able to handle a 3rd graphics card?

Thanks!
Edited by OPENbracket - 2/20/11 at 5:53pm
FIRST POST
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FIRST POST
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post #2 of 5
You would see a gain as the second monitor now has its own gpu and does not have to leech off the 260s. Not sure about your psu, it might but it would be risky.
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The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
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post #3 of 5
I was gonna try this with an 8400GS to power a third screen, since my 460's are in SLI, and one of them never clocks down far enough and stays 20c hotter than the other 460 due to the second monitor hooked up to it.

If the card was really low-power and it was only running a third monitor then you're probably fine, which is why I chose the 8400GS.
post #4 of 5
I use my old nvidia card to drive my 2nd monitor, but i haven't noticed a difference either way. You should theoretically seen an FPS gain though. Might be better for you running 1 set of drivers instead of my 2 drivers.

But it has stopped screen flicker caused by ATI's 2D clock speeds.
post #5 of 5
Thread Starter 
Alright Ill try it out as soon as it comes from RMA. There shouldnt be any harm trying right? The PC should just power off if not enough power.
FIRST POST
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CPUMotherboardGraphicsRAM
2500k @ 4.6ghz 1.35v ASUS Z68-V 2x MSI GTX 580s Watercooled @975 mhz 4gb Patriot 
Hard DriveOptical DriveOSPower
320gb x2 WD Raid1 ASUS BDVD Burner Windows 7 x64 Corsair 750a 
Mouse
G5 Logitech 
  hide details  
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FIRST POST
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6ghz 1.35v ASUS Z68-V 2x MSI GTX 580s Watercooled @975 mhz 4gb Patriot 
Hard DriveOptical DriveOSPower
320gb x2 WD Raid1 ASUS BDVD Burner Windows 7 x64 Corsair 750a 
Mouse
G5 Logitech 
  hide details  
Reply
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