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GTX 480 SLI'd with GTS 450

post #1 of 27
Thread Starter 
I am thinking of upgrading to a second GTX 480 for my current system. I currently have a Corsair TX750w PSU along with a low power Xeon L5520 on an MSI X58A-GD45. Currently, my cpu is clocked at 3.0 (167*18)GHz, and it uses no more than 120 give or take 10 watts. My current 480 is a reference card clocked at 750/1500/1900 @ 1.05v, so it's not clocked to its max. This is mainly a gaming rig by day, and a folding rig by night. However, I don't fold on the Xeon because it isn't a stable folder. My xeon uses only 60 watts at it's stock speed of 2.26 (2.40 turbo). I am also running a WD 74g Raptor boot drive along with a WD 500g Green drive. Can I run this setup on my current PSU?

On a sidenote, I was on Nvidia's SLI rig browser and I saw a rig where this guy put a GTX 480 and a GTX 550 Ti into "Hybrid SLI". From my understanding, Hybrid SLI was a feature limited to socket 775 boards with an Nvidia IGP with the Hybrid feature and to laptops with an IGP and dedicated Nvidia card. Would it be possible to stick lets say a GTS 450 with my GTX 480 and put that in Hybrid SLI?

EDIT: For those of you who are not experts with the Xeon series, my L5520 is pretty much a low power i7 9xx CPU with a slightly different core structure designed to run with two QPI links vs. one QPI link of the i7 series
Edited by haha1 - 5/25/13 at 6:32pm
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West Hawaii
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post #2 of 27
Power supply is enough for two 480s at those volts and clocks, so a GTX 480 and GTS450 together is no problem.

Fermi to Fermi is not a problem for the hybrid sli hack:

http://www.techpowerup.com/forums/showthread.php?t=158907
    
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post #3 of 27
With two 480's you'd need at minimum 850w's (750w's will struggle, but I'd try it out just in case). I don't think you could use hybrid Sli and you really wouldn't want to anyway. As far as I know it's a power saving feature, it doesn't actually give you a performance boot like SLI (with the exception of some notebook GPU's).
Edited by TheLawIX - 5/25/13 at 6:38pm
post #4 of 27
Quote:
Originally Posted by MrTOOSHORT View Post

Power supply is enough for two 480s at those volts and clocks, so a GTX 480 and GTS450 together is no problem.

Fermi to Fermi is not a problem for the hybrid sli hack:

http://www.techpowerup.com/forums/showthread.php?t=158907

You're confusing hybrid sli with hyper sli.
post #5 of 27
Quote:
Originally Posted by TheLawIX View Post

You're confusing hybrid sli with hyper sli.

Well OP is talking about a GTX 450 and GTX 480, so that's what I thought he/she meant:
Quote:
Hybrid SLI® technology, based on NVIDIA’s industry-leading SLI technology, delivers multi-GPU (graphics processing unit) benefits when an NVIDIA® motherboard GPU is combined with an NVIDIA discrete GPU. Hybrid SLI increases graphics performance with GeForce® Boost and provides intelligent power management with HybridPower™.

http://www.nvidia.ca/object/hybrid_sli.html

And you don't need a minimum of 850w for low voltage /clocking 480s, 750w is enough.
    
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post #6 of 27
Hybrid SLI won't work with desktop GPU's, it's not even supported in new notebook GPU's (Optimus took over). Copy pasting off Nvidia's site without reading doesn't help.
post #7 of 27
Quote:
Originally Posted by TheLawIX View Post

Hybrid SLI won't work with desktop GPU's, it's not even supported in new notebooke GPU's (Optimus took over). Copy pasting off Nvidia's site without reading doesn't help.

Thought OP was talking about Hyper SLI, never heard of Hybrid SLI.

Thanks for the clarification.
    
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post #8 of 27
Thread Starter 
I have an old 8800 GTX sitting on my shelf, would the hyper SLI work with these two chips? I understand the performance gains will be minimal with a measly G80 running alongside the 3rd most powerful (Geforce) Fermi chip made, but I think it would be cool just to show off biggrin.gif
West Hawaii
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Micron 128GB SSD (same as Crucial M500) Western Digital Caviar Green 1tb lolwut? Scythe Fuma 
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West Hawaii
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Hard DriveHard DriveOptical DriveCooling
Micron 128GB SSD (same as Crucial M500) Western Digital Caviar Green 1tb lolwut? Scythe Fuma 
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post #9 of 27
Hack only works for the same architecture. Like 480 and 570( Fermi ) for example.
    
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Hard DriveCoolingCoolingOS
750 NVMe 1.2TB EK HF/rx360/rx120 EK FC/GTs/mcp655 Windows 10 Pro  
MonitorPowerCaseAudio
BL3200PT 1600 T2 800d Pro Audio 2.1 + DragonFly Red 
  hide details  
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CPUMotherboardGraphicsRAM
Xeon E5-1680 V2  R4BE  TITAN X (Pascal)   2666 Dominator Platinum CL10 
Hard DriveCoolingCoolingOS
750 NVMe 1.2TB EK HF/rx360/rx120 EK FC/GTs/mcp655 Windows 10 Pro  
MonitorPowerCaseAudio
BL3200PT 1600 T2 800d Pro Audio 2.1 + DragonFly Red 
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post #10 of 27
Quote:
Originally Posted by MrTOOSHORT View Post

Power supply is enough for two 480s at those volts and clocks, so a GTX 480 and GTS450 together is no problem.

Fermi to Fermi is not a problem for the hybrid sli hack:

http://www.techpowerup.com/forums/showthread.php?t=158907

Wrong, they have to be the same GPU.
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