PCI revision on SB-E with newer card.

[Skynet5]

Currently got an Asus Rampage Formula IV with a 3820, along with 680 2GB SLI.

The 3820 is not "certified" to run at PCI 3.0, however, with a hack I have made it so with my 680 cards.

With these 680s there really isn't a need to do this, but with a couple of 980 Tis I think it might be useful.

Anyone here on the same sort of rig (SB-E) and moved on to the 980Ti and successfully hacked the reg to enable PCI3.0?

Would really like to know, as I don't want to drop £1200 on two new cards to find the hack doesn't work on my 3820 and running on PCI 2.0 is limiting me.

 

[Skynet5]

Looking here, they have updated to support my config on later cards (7xx) but don't mention the 9xx. So I don't if I need the hack or not, or if the hack works.

http://nvidia.custhelp.com/app/answers/detail/a_id/3135/~/geforce-gen3-support-on-x79-platform

 

[Skynet5]

The hack should still work however PCIE 2.0 16x shouldn't really limit you.

I run three TITAN X at 8x/8x/8x PCIE 3.0 which is theoretically the same bandwidth, and the difference is non existent / less than negligible.

Thanks mate.

I really want to keep my mobo and cpu for another couple of years at least, so the gfx cards I get know will keep my machine until I buy all new.

Sounds like I wont be suffering.

 

[Skynet5]

Thanks again.

 

[Skynet5]

980 SLI on PCIe 3.0 x8/x8 (Z97), so same bandwidth as 2.0 x16/x16

According to nVidia inspector, bus load never goes above about 35%.

PCIe is way faster than it needs to be imho.

Good to know.

Just wondering what my next card move is now..

 

[Skynet5]

I'm running a 3930K on P9X79 Deluxe with the PCI-E 3.0 hack (PCI-E 3 also enabled in bios) with Titan Xs in SLI.

Never had problems moving from GTX580s-GTX680s-GTX970s-R9-290s-Titan Xs, I forget sometimes to run the hack on new driver releases unless I run GPU-z I don't even realise it.

Just have the hack handy when you update the drivers, run it and restart. That's about it.

Even with PCIe 2.0 16x you should be fine.

Thanks to everyone. But that is the evidence I needed to completely put my mind at rest.

As you say though, hardly notice it.