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P877-V Deluxe and SLI Titans

post #1 of 4
Thread Starter 
Hey all,

So I need some advice. I am thinking of throwing another Titan into my rig. I currently have one but would love to go SLI. As the title states, I am running the P877-V Deluxe, which is a fantastic board so far.

I am wondering if it is a good board to put two SLI Titans in? I am very NEW to SLI and am unsure how all this 16x 3.0 and 8x 3.0 vs 2.0 or whatever. I don't even really know what I am talking about when it comes to these numbers as I have only ever ran one video card in the designated slot (16x 3.0). I do believe with my current board; It will run SLI Titans with 8x. But is it 2.0 or 3.0? Is this upgrade worth it or should I need a new board? Is it stupid to put a Titan in this board? Any help, info and advice on this subject would be greatly appreciated!

Thanks.
RedPill
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CPUMotherboardGraphicsRAM
i7 3770K @ 4.5Ghz Asus P8Z77-V Deluxe EVGA GTX TITAN SC G.Skill RipjawZ 16GB DDR3 1866Mhz 
Hard DriveHard DriveCoolingOS
Samsung 500GB 840 Pro SSD WD Black SATA 6 7200RPM Corsair H100i Windows 8 Pro 64bit 
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Antec HCP 1200 ThermalTake Level 10 GT Asus Xonar Essence STX 
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RedPill
(11 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K @ 4.5Ghz Asus P8Z77-V Deluxe EVGA GTX TITAN SC G.Skill RipjawZ 16GB DDR3 1866Mhz 
Hard DriveHard DriveCoolingOS
Samsung 500GB 840 Pro SSD WD Black SATA 6 7200RPM Corsair H100i Windows 8 Pro 64bit 
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Antec HCP 1200 ThermalTake Level 10 GT Asus Xonar Essence STX 
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post #2 of 4
Since you have a Z77 board with an IB processor your PCI-E slots will run at PCI-E 3 speeds. Since Z77 supports 16 lanes of PCI-E 3, putting two Titans in SLI will mean you will be running at x8, x8. However, this is not going to affect your performance in the least.

This article shows how going from x16/x16 to x8/x8 with PCI-E 2 does not affect performance in the least bit. Like literally not at all. Since PCI-E 3 has double the bandwidth of the previous generation, running PCI-E 3 at x8/x8 is the same as PCI-E 2 at x16/x16.

What it comes down to is that there is not card currently on the market that can saturate the bandwidth of a 3rd gen PCI-E x8 slot, let alone PCI-E x16.

So go for the SLI! I'm sure you will be very pleased with the results and your PCI-E bandwidth will not limit you whatsoever thumb.gif
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Macbook Pro 13"
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i3 2120 EVGA Z77 FTW EVGA GTX 760 SC ACX PNY 2x4Gb 1866 CL10 
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OWC Mercury Electra 240Gb CM Hyper TX3 Windows 10 LG 34UM95 
KeyboardPowerCaseMouse
Apple Keyboard Seasonic 430W Rosewill Challenger Logitech G302 
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post #3 of 4
Thread Starter 
Thank you so much for this answer! This is exactly what I needed to hear! Thank you.
RedPill
(11 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K @ 4.5Ghz Asus P8Z77-V Deluxe EVGA GTX TITAN SC G.Skill RipjawZ 16GB DDR3 1866Mhz 
Hard DriveHard DriveCoolingOS
Samsung 500GB 840 Pro SSD WD Black SATA 6 7200RPM Corsair H100i Windows 8 Pro 64bit 
PowerCaseAudio
Antec HCP 1200 ThermalTake Level 10 GT Asus Xonar Essence STX 
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RedPill
(11 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K @ 4.5Ghz Asus P8Z77-V Deluxe EVGA GTX TITAN SC G.Skill RipjawZ 16GB DDR3 1866Mhz 
Hard DriveHard DriveCoolingOS
Samsung 500GB 840 Pro SSD WD Black SATA 6 7200RPM Corsair H100i Windows 8 Pro 64bit 
PowerCaseAudio
Antec HCP 1200 ThermalTake Level 10 GT Asus Xonar Essence STX 
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post #4 of 4
Quote:
Originally Posted by shizwack View Post

Thank you so much for this answer! This is exactly what I needed to hear! Thank you.

No problem glad I could help smile.gif

Hopefully your upgrade goes smoothly and gives you the boost that you want/need thumb.gif
Pieced Together
(12 items)
 
Macbook Pro 13"
(6 items)
 
 
CPUMotherboardGraphicsRAM
i3 2120 EVGA Z77 FTW EVGA GTX 760 SC ACX PNY 2x4Gb 1866 CL10 
Hard DriveCoolingOSMonitor
OWC Mercury Electra 240Gb CM Hyper TX3 Windows 10 LG 34UM95 
KeyboardPowerCaseMouse
Apple Keyboard Seasonic 430W Rosewill Challenger Logitech G302 
CPUGraphicsRAMHard Drive
i5 4278U Iris 5100 8Gb DDR3 256Gb PCIe SSD 
OSOS
El Capitan Windows 10 
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Pieced Together
(12 items)
 
Macbook Pro 13"
(6 items)
 
 
CPUMotherboardGraphicsRAM
i3 2120 EVGA Z77 FTW EVGA GTX 760 SC ACX PNY 2x4Gb 1866 CL10 
Hard DriveCoolingOSMonitor
OWC Mercury Electra 240Gb CM Hyper TX3 Windows 10 LG 34UM95 
KeyboardPowerCaseMouse
Apple Keyboard Seasonic 430W Rosewill Challenger Logitech G302 
CPUGraphicsRAMHard Drive
i5 4278U Iris 5100 8Gb DDR3 256Gb PCIe SSD 
OSOS
El Capitan Windows 10 
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