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Overclock.net - Overclocking.net > Graphics Cards > NVIDIA | |
Help: Can't Enable SLI
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10-15-09
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#1 (permalink) | |||||||||||||
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New to Overclock.net
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Help: Can't Enable SLI
So I just got my 2nd GTX 275 today and got it installed, got the power connectors all connected up, installed the SLI bridge, driver swept all old nvidia drivers, installed fresh 191.07 drivers and I don't have an option to enable sli in the nvidia control panel.
__________________Before you ask, I've tried out both cards by themselves, both work. I've tried swapping the slots they were in, using a different SLI bridge {the one for tri-sli}, flipping the sli bridge upside down and thumbing through both my motherboard and gfx card manuals to no avail. It seems like I have done everything correctly. Everything is in the mobo tight, I used my body weight to press down on both cards and made sure all 4 power connectors are tight. Specs are in sig, however I can't recall if I updated my gfx card or not so I'll post those here.. 2x Geforce GTX 275 1. XFX Geforce 275 2. Gigabyte Geforce 275 The only difference between the cards that I can tell is the gigabyte has a slightly faster clock speed {633 vs 660}, same amount of ram, etc. Please help me guys, I just dumped a good 230 for this card and I'll I've gotten in return is a massive headache.
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10-15-09
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#2 (permalink) | |||||||||||||
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2 + 2 = 5
 
Join Date: Nov 2006
Location: In a Chair.
Posts: 34,896
Rep: 4168
  Unique Rep: 1905
Trader Rating: 56
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Uninstall NVIDIA Display drivers
Shut down. Insert ONE video card. Boot up and install the lasted NVIDIA display driver. Reboot. Confirm that the driver and video card are working. Shutdown. Install the second card and bridge. Boot up. SLI should be avaliable now. The driver sometimes have issues recognizing the second card.
__________________
To answer most of your questions: (1) a fridge cannot cool a PC (2) 64-bit OS for over 3.4GB (3) If a PCIe card fits, it should work (4) Resolution, not screen size (5) If you have a question, it is not news (6) Report, not respond to Spam (7) Single-Rail/Non-Modular PSUs are not always better than Multi-Rail/Modular
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10-15-09
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#3 (permalink) | |||||||||||||
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New to Overclock.net
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Did that.
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10-15-09
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#4 (permalink) | |||||||||||||
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New to Overclock.net
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Still no luck.
__________________
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10-15-09
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#5 (permalink) | |||||||||||||
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2 + 2 = 5
Join Date: Nov 2006
Location: In a Chair.
Posts: 34,896
Rep: 4168
Unique Rep: 1905
Trader Rating: 56
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Is device manager detecting both cards?
__________________
To answer most of your questions: (1) a fridge cannot cool a PC (2) 64-bit OS for over 3.4GB (3) If a PCIe card fits, it should work (4) Resolution, not screen size (5) If you have a question, it is not news (6) Report, not respond to Spam (7) Single-Rail/Non-Modular PSUs are not always better than Multi-Rail/Modular
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10-15-09
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#6 (permalink) | |||||||||||||||
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PC Gamer
 
Join Date: Jan 2009
Location: Toronto, Ontario
Posts: 2,708
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Trader Rating: 17
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You have the SLI bridge in the right connector (the one closest to the back of the PC)? Anyways, run Driver Sweeper in Safe Mode in order to remove the driver, and then install the new driver after your reboot into regular mode, and then follow DuckieHo's advice for the final steps.
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10-15-09
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#7 (permalink) | ||||||||||||||
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2 + 2 = 5
Join Date: Nov 2006
Location: In a Chair.
Posts: 34,896
Rep: 4168
Unique Rep: 1905
Trader Rating: 56
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Quote:
__________________
To answer most of your questions: (1) a fridge cannot cool a PC (2) 64-bit OS for over 3.4GB (3) If a PCIe card fits, it should work (4) Resolution, not screen size (5) If you have a question, it is not news (6) Report, not respond to Spam (7) Single-Rail/Non-Modular PSUs are not always better than Multi-Rail/Modular
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10-15-09
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#8 (permalink) | |||||||||||||
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New to Overclock.net
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Device manager only detects one GTX 275
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10-15-09
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#9 (permalink) | |||||||||||||
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New to Overclock.net
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OMG Duckie, I've never wanted to kiss a dude in my life until now. Thank you sir. Problem Solved.
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10-15-09
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#10 (permalink) | ||||||||||||||
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4.0 GHz
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Quote:
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