-
Competitor rules
Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
SLI option not showing up. I thought Nvidia drivers 'just worked'
- Thread starter Marvin
- Start date
I am using a Maximus III Gene, which is SLI compatible.
Both cards show up without issues in device manager, and in NCP under the PhysX, which card tab. However, just no SLI.
I have now done a fresh install on a different partition, let Windows install default drivers for everything, then installed 258.96. And nothing. Seems more and more a mobo issue, but it physically works fine with a single card in either slot. I'm getting really confused now...
Both cards show up without issues in device manager, and in NCP under the PhysX, which card tab. However, just no SLI.
I have now done a fresh install on a different partition, let Windows install default drivers for everything, then installed 258.96. And nothing. Seems more and more a mobo issue, but it physically works fine with a single card in either slot. I'm getting really confused now...
Crap... Not good.
Well, I would try a BIOS update, and perhaps a different set of chipset drivers. But, if that doesn't work, I think you might have to RMA the motherboard. Which is a royal PITA.
Soldato
- Joined
- 26 Dec 2009
- Posts
- 9,707
- Location
- North
have you tried using a different sli bridge yet?
As others have pointed out, even without an SLI bridge he should be able to enable SLI. He would just get a message saying that the SLI config could operate more efficiently with a bridge.
I've done the latest BIOS update, and the only chipset drivers on a P55 seem to be SATA and USB related ones. Everything is up to date.
The thing is, randomly RMAing components could prove expensive if they find nothing wrong.
The thing is, randomly RMAing components could prove expensive if they find nothing wrong.
Have you tried resetting your overclock? I'm wondering if it could be affecting the PCI-E controller built into the CPU...
I was also going to suggest flashing both cards with an identical BIOS (back up originals with GPU-Z if you do) but it's unlikely to be that if the second card isn't even working for Physx.
I was also going to suggest flashing both cards with an identical BIOS (back up originals with GPU-Z if you do) but it's unlikely to be that if the second card isn't even working for Physx.
I checked GPU-Z and they both have the same BIOS revision.
I'll try running at stock (though I've only got the RAM overclocked at the moment anyway).
Ok, now running Ubuntu. Still no SLI option in NVIDIA X-Server under Open GL, so I conclude a hardware issue.
As I said, on Tuesday I'm going to try to run 2 9800GTs, and see if that works. If it does, then I have a GPU conflict, if not, then a motherboard conflict.
Fun...
As I said, on Tuesday I'm going to try to run 2 9800GTs, and see if that works. If it does, then I have a GPU conflict, if not, then a motherboard conflict.
Fun...
Aside from its possible the motherboard has issues or doesn't have an SLI compatible BIOS... SLI can be a bit "rigid" with regards to hardware restrictions its possible that running a Xeon on a desktop board doesn't fall within its "authorised" hardware for some random reason sounds a bit of a stretch tho.
Ok, just run the SLI Patch and have it installed on 257.21 drivers. Still no SLI option.
At this point, I can only assume an incompatibility with either the GPUs, or the motherboard.
I'll find out on Tuesday.
Have already updated to latest BIOS, and none of the releases mentioned an SLI fix.
At this point, I can only assume an incompatibility with either the GPUs, or the motherboard.
I'll find out on Tuesday.
Have already updated to latest BIOS, and none of the releases mentioned an SLI fix.