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Can't enable SLI with Xonar phoebus installed

TimoViBrtiannia
Level 7

‎06-21-2015 08:54 AM - last edited on ‎03-06-2024 02:41 AM by Community Admin

Hello,

I have 2 GTX 780's in my System and one Xonar Pheobus whitch is installed in the 3 PCI slot. My grafics cards work fine but I have no option to enable the sli support. But when I remove my phoebus from my system I can enable SLI whats wrong there?

Mainboard: Asrock Z87 Professional
CPU: I7 4770K
GPU1: GTX 780
GPU2: GTX 780
SoundCard: Asus ROG Xonar Phoebus
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4 REPLIES 4

Nate152
Moderator

‎06-21-2015 09:04 AM

hello TimoViBrtiannia

If you have the sound card in the third pcie slot, it drops the pcie lanes to x8 x4 x4. Nvidia gpu's need x8 to run.

Try connecting it in the pcie x 1 slot.
ROG Strix 1070 OC Guide - ROG Spatha X Rapid Fire - ROG Falchion Touch Panel - z270 BCLK Overclocking - Xsplit Gamecaster Guide - ROG RX 460 OC Guide
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TimoViBrtiannia
Level 7
In response to Nate152

‎06-21-2015 11:40 AM

Hi,
The first gpu uses 8x lanes and the second one 4x lanes
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TimoViBrtiannia
Level 7

‎06-21-2015 11:33 AM

But when I put the soundcard in the first slot, i can't connect the sli bridge because its to short
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Nate152
Moderator

‎06-21-2015 01:58 PM

the pcie x1 slot is the shortest slot and is black, it's just big enough for your sound card to fit into.
ROG Strix 1070 OC Guide - ROG Spatha X Rapid Fire - ROG Falchion Touch Panel - z270 BCLK Overclocking - Xsplit Gamecaster Guide - ROG RX 460 OC Guide
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