SLI option doesnt show in nvidia control panel

scott1939392 · Aug 21, 2015

Hi im trying to sli 2 cards, they are the same number, have the same ram, and what it needs to be to be sli. However when i go to nvidia it only shows configure surround, physx instead of configure SLI, surround, physx like on youtube. can someone help me? it may be because my sli bridge is from another motherboard but it should work as well right?

migronesien · Aug 21, 2015

SLI bridge brand doesnt matter. Im using an ASUS bridge on EVGA cards. So thats not the problem.
Are you sure that both cards are completely into place? Just because that plastic holder thing of your motherboard snaps to the cards doesnt mean it's 100% in place. After snapping you can still push the card down a bit.

scott1939392 · Aug 21, 2015

migronesien :

both lights are on. that means both cards are working right?

migronesien · Aug 21, 2015

scott1939392 :

Yes. You mean the "GEFORCE GTX" on the side of the cards right?
But im not sure if the LEDs go on if they just got power (from the PSU) or if they have to be completely in place too. Did you try to push the seconds card a bit more in? Or maybe you can see if they arent level.

Otherwise i wouldnt know what the problem is. Do both cards show in the device manager?

faalin · Aug 21, 2015

Can you give full system specs of your build.

Try removing both cards and trying each one in the first pci slot and then move then to the other slot your using for sli. This will ensure that both cards are working and that both slots are working.

scott1939392 · Aug 21, 2015

faalin :

i tried that. both are working

faalin · Aug 21, 2015

what cards are you using and what PSU do you have.

scott1939392 · Aug 21, 2015

migronesien :

scott1939392 :

Yes. You mean the "GEFORCE GTX" on the side of the cards right?
But im not sure if the LEDs go on if they just got power (from the PSU) or if they have to be completely in place too. Did you try to push the seconds card a bit more in? Or maybe you can see if they arent level.

Otherwise i wouldnt know what the problem is. Do both cards show in the device manager?

how do i see that they're in device manager?

scott1939392 · Aug 21, 2015

migronesien :

scott1939392 :

Yes. You mean the "GEFORCE GTX" on the side of the cards right?
But im not sure if the LEDs go on if they just got power (from the PSU) or if they have to be completely in place too. Did you try to push the seconds card a bit more in? Or maybe you can see if they arent level.

Otherwise i wouldnt know what the problem is. Do both cards show in the device manager?

yes i can see them in the device manager, there are 2 cards there

faalin · Aug 21, 2015

go into device manager and click on Display adapters. it should show both of them in there.

faalin · Aug 21, 2015

if both are shown in there then most likely you have a bad sli bridge.

scott1939392 · Aug 21, 2015

faalin :

im using 900 watts and the motherboard is x99a xpower ac

scott1939392 · Aug 21, 2015

faalin :

ok ill try changing it

scott1939392 · Aug 21, 2015

faalin :

i changed it and it still doesnt show

migronesien · Aug 21, 2015

scott1939392 :

If both are showing in the device manager then it must be the SLI bridge.
Did you put the bridge on the first "slot" of your GPUs? Because thats usually the "main slot" of the cards for SLIing.
Should be the one on the left closer to your case.

If this is already the case or still doesnt work change the bridge and everything should work fine, since both get recognized by your system.

scott1939392 · Aug 21, 2015

faalin :

i tried changing the bridge and it still doenst work.

faalin · Aug 21, 2015

For 2 way sli you have to be in slots 1 and 4 on the board. are your cards in these slots.

scott1939392 · Aug 21, 2015

migronesien :

i put it on the first slot yes. the one on the left when the sli sockets are face you and the card is the right way up (fans down). i dont know what to do

migronesien · Aug 21, 2015

Are the cards right next to each other on your motherboard?

If yes, put one card into another PCI-E slot so the cards have a bit of air between.
Sometimes the slots right next to each other dont work for SLI.

faalin · Aug 21, 2015

Read the manual it tells you where to put the cards for sli/crossfire

5 x PCIe 3.0 x16 slots (PCI_E1~E4, PCI_E6), support up to 4-way mode
- 1-way mode: x16/ x0/ x0/ x0/ x0
- 2-way mode: x16/ x0/ x0/ x16/ x0*, x16/ x0/ x0/ x8/ x0**
- 3-way mode: x16/ x0/ x0/ x16/ x8*, x8/ x8/ x0/ x8/ x0**
- 4-way mode: x8/ x8/ x0/ x16/ x8*, x8/ x8/ x0/ x8/ x4**
* For the CPU that supports 40 PCIe lanes
** For the CPU that supports 28 PCIe lanes

scott1939392 · Aug 21, 2015

faalin :

yes they are on pcie 1 and pcie4

scott1939392 · Aug 21, 2015

migronesien :

they are on pcie1 and pcie 4

scott1939392 · Aug 21, 2015

migronesien :

they are on pcie 1 and pcie 4

scott1939392 · Aug 21, 2015

migronesien :

scott1939392 :

If both are showing in the device manager then it must be the SLI bridge.
Did you put the bridge on the first "slot" of your GPUs? Because thats usually the "main slot" of the cards for SLIing.
Should be the one on the left closer to your case.

If this is already the case or still doesnt work change the bridge and everything should work fine, since both get recognized by your system.

could it be because its windows 10?

scott1939392 · Aug 21, 2015

migronesien :

scott1939392 :

If both are showing in the device manager then it must be the SLI bridge.
Did you put the bridge on the first "slot" of your GPUs? Because thats usually the "main slot" of the cards for SLIing.
Should be the one on the left closer to your case.

If this is already the case or still doesnt work change the bridge and everything should work fine, since both get recognized by your system.

I might have found the problem. in the device manager the 2nd card has an exclamation mark on it. What does it mean?

SLI option doesnt show in nvidia control panel

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