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Can't enable SLI gtx460 OC Win7 64bit

Last response: in Graphics & Displays
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October 1, 2010 8:20:33 AM

Good morning! I got my new PC (i5 750) and 2 Gigabyte GTX460 OC nvidia cards but I can't enable SLI..
Mobo is: Intel Socket 1156 - Asus P7P55D PRO
I installed Win 7 (didnt update anything)
I installed latest Nvidia drivers
Both cards appear in CPU-Z and have the same bios, but SLI is disabled

In the Nvidia control panel I dont find the SLI menu..

What might be wrong? Appreciate your help!
a c 171 Î Nvidia
October 1, 2010 8:28:12 AM

What motherboard is it?
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October 1, 2010 8:47:46 AM

Hi, its this one + more info

Intel Socket 1156 - Asus P7P55D PRO
DDR3 1600 - Kingston HyperX 4GB DDR3 1600 PC3-12800 2x2GB
Cooler Master HAF 922
Antec TruePower New 750W Modular
X 2 Gigabyte GeForce GTX 460 OC 1GB GDDR5

thanks for help!
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October 1, 2010 3:29:36 PM

I would install/update all of the motherboard drivers first if you havent already done it.
The you might uninstall, run driver sweeper and re-install the video driver.
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a b Î Nvidia
October 1, 2010 4:00:27 PM

This is what it should look like. Check device manager that there are no yellow exclamation points next to hardware like pci-e slot or gpu's.
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October 1, 2010 4:12:06 PM

Thanks notty
I think I saw the physx panel but I dont recall seeing the SLI.. is that possible? Im not at home right now, will check once I get there asap and post back.

Thanks!
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October 1, 2010 4:13:01 PM

Are you running 64bit Windows7.
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October 1, 2010 4:20:17 PM

I feel like a moron. :pfff: 
Its the name of the tread. :lol: 
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October 1, 2010 4:25:50 PM

These are the drivers you should install/update

Chipset driver
Version 9.1.1.1020

Lan driver
Version 7.3.522.2009

Audio driver
Version 6.0.1.7500

SATA driver
Version 1.17.50.2

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October 1, 2010 10:31:18 PM

Just use your current driver, uninstall the old driver and components, run driver sweeper, and then reinstall the driver. Make sure you restart every time you are prompted.
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a b Î Nvidia
October 1, 2010 10:43:38 PM

I'm using the new 260 driver, I think most people are.
You also want to install the SLI enhancement patch.
http://www.evga.com/articles/00463/

I agree with rebooting after each step. Thats how my setup worked.
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October 2, 2010 12:37:29 AM

big problem now: I moved one gpu to another pcie slot and now the gpu bios is unknown. before both cards showed up in gpu-z with same bios, and now only 1 of them is showing up.... :(  cant believe it wha can I do now?

thanks for help
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October 2, 2010 12:39:50 AM

Hi, I have 2gtx460 but I was trying to setup SLI so I moved one card to another pcie slot... but now the problem is that card I moved has bios: unknown

Before that both cards showed up on gpu-z and shared same bios, but now one of them has an unknown bios... what shall I do to make it work?

thanks in advance
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October 2, 2010 12:41:00 AM

Did you try moving it back.
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October 2, 2010 4:26:14 AM

You should have the cards in the blue slot (top slot) and the grey slot (middle slot), so they both run in 8x mode. Do not put the video card in the lower black slot since it is only 4x speed.

Did you hook the two cards together with the SLI Cable onto the connector on the top of the two cards? The connectors are towards the mounting bracket, I think. There should have been a SLI Cable in the box for the motherboard.
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October 2, 2010 4:39:15 AM

For the P7P55D PRO...

You should have the cards in the blue slot (top slot) and the grey slot (middle slot), so they both run in 8x mode. Do not put the video card in the lower black slot since it is only 4x speed.

Did you hook the two cards together with the SLI Cable onto the connector on the top of the two cards? The connectors are towards the mounting bracket, I think. There should have been a SLI Cable in the box for the motherboard?

Did you hook the (2) 6 -PIN Power cables from the Power Supply to each of your gigabyte gtx460 1gb OC videocards? They would be at the end of the video card closest to your hard drives.
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a c 171 Î Nvidia
October 2, 2010 6:23:55 AM

This next topics has been merged by Mousemonkey
  • Gtx460 bios unkown... no idea what it means -help!
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