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Ivy Bridge-E & nVidia PCIE 3.0 !?

Gripen90

Gripen90

Gripen90

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I have tried to find an answer to my question via reviews, tech sheets etc but with no luck.

My question is:

With the new Ivy Bridge-E for socket 2011 the CPU has native official PCI-E 3.0 support unlike the Sandy Bridge-E.
Does this mean that PCI-E 3.0 will be enabled per default when running nVidia GTX 600/700 series cards ? or will it still be necessary to use the nVidia X79 PCI-E 3.0 patch to run PCI-E 3.0 ?
 
You will still need the patch, it wasn't SB-E that Nvidia were worried about it was the X79 motherboards themselves. Because board design was done before any 3.0 GPU existed the boards implementations vary in how exactly they keep to the PCI-E 3.0 spec, bearing in mind that Nvidia/AMD don't keep 100% to the spec themselves the was a lot of potential issues with X79 so Nvidia chose to fix it by disabling 3.0 by default and letting people enable it, AMD chose the opposite method.

Nvidia plan to release a future driver that sets 3.0 by default for IB-E CPU's.
 
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ubersonic said:
You will still need the patch, it wasn't SB-E that Nvidia were worried about it was the X79 motherboards themselves. Because board design was done before any 3.0 GPU existed the boards implementations vary in how exactly they keep to the PCI-E 3.0 spec, bearing in mind that Nvidia/AMD don't keep 100% to the spec themselves the was a lot of potential issues with X79 so Nvidia chose to fix it by disabling 3.0 by default and letting people enable it, AMD chose the opposite method.

Nvidia plan to release a future driver that sets 3.0 by default for IB-E CPU's.
Click to expand...

Thank you very much. That confirms what I thought, but I wasn't entirely sure ;)
 
I'm pretty sure that it was a timing issue relating to the on-die PCI-E controller of the SB-E, if it was a motherboard issue they would have released a whole new range of boards for IB-E.

That said you will probably have to manually enable it as NVidia will want to maintain stability with SB-E.
 
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Only the GeForce TITAN and GeForce GTX 780 will have PCI-E 3.0 support from future NVidia drivers, according to NVidia there are no plans yet to support PCI-E 3.0 the GTX600 series in their driver sets.

lowe0 said:
ManuelG said:
We will be adding PCI-E 3.0 Ivybridge-E support for the Geforce GTX 780 and GTX Titan in a future driver.
Click to expand...
No 600 series support?
Click to expand...
I don't believe we have plans to add support for 600 series at this time.

ManuelG
Click to expand...
 
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mmj_uk said:
I'm pretty sure that it was a timing issue relating to the on-die PCI-E controller of the SB-E, if it was a motherboard issue they would have released a whole new range of boards for IB-E.

That said you will probably have to manually enable it as NVidia will want to maintain stability with SB-E.
Click to expand...

Well it seems that these nVidia PCIE 3.0 problems exist with Ivy Bridge-E also.
A friend of mine just upgraded from 3930K + GTX 690 + Asus Sabertooth X79 to 4930K + GTX 780 SLi.
When he enables the nVidia X79 PCIE-3.0 patch then the systems starts to fluctuate heavily in FPS and seconds after it crashes !. When running PCIE 2.0 it's rock solid. :confused:
We simply can't get it to run PCIE 3.0 without crashing.

Hmm wondering if I just should keep my 3930K since I too had the same problem over a year ago. I upgraded my Core i7 3820 + Gigabyte X79UD3 to a 3930K, and when running the nvidia X79 PCIE 3.0 patch I would get FPS drops and every benchmark would crash. PCIE 2.0 was rock solid. I then bought an Asus P9X79Pro and installed the 3930K... and I could run PCIE 3.0 rock solid again.
 
SLI - patch doesnt work, often only enables one card as pcie3, which is why youll be having instability
for sli systems you need to disable sli and manually set each card to 3, reboot and then enable sli

enabling pcie3 also puts extra strain on the cpu which can cause a borderline oc go fully unstable
 
andybird123 said:
SLI - patch doesnt work, often only enables one card as pcie3, which is why youll be having instability
for sli systems you need to disable sli and manually set each card to 3, reboot and then enable sli

enabling pcie3 also puts extra strain on the cpu which can cause a borderline oc go fully unstable
Click to expand...

I usually install the GFX driver with SLI disabled and the install the x79 patch and reboot and then enable SLI.

But this 4930K just isn't happy with PCIE 3.0 and we haven't even OC'ed. We are thinking of just calling it off, and go back to 3930K and keep going with this until Skylake hits some time 2015.
 
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I am having no such issues. My 4930K and Asus Rampage IV Formula have worked without a problem using PCI-e 3.0 - Yes I have to apply the 'patch' but both of my cards are running at 3.0 in SLI and are very stable.

Have you put the latest bios and chipset drivers on from the Asus website?
Only use the chipset drivers from the Asus website as I found the latest on the Intel site (which are newer) did not find all the Ivy-E stuff.

I'm also using the latest beta nVidia drivers.

Just looking at your machine specs - don't ASUS have or have had issues with the Crucial Tactical ram?
 
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SimonMaltby said:
I am having no such issues. My 4930K and Asus Rampage IV Formula have worked without a problem using PCI-e 3.0 - Yes I have to apply the 'patch' but both of my cards are running at 3.0 in SLI and are very stable.

Have you put the latest bios and chipset drivers on from the Asus website?
Only use the chipset drivers from the Asus website as I found the latest on the Intel site (which are newer) did not find all the Ivy-E stuff.

I'm also using the latest beta nVidia drivers.

Just looking at your machine specs - don't ASUS have or have had issues with the Crucial Tactical ram?
Click to expand...

"Fortunately" it's not me have the issues but a friend om mine, and I'm trying to help him trouble shoot and get the PC working :)

His setup consists of
Asus Sabertooth X79 latest BIOS 4302.
Intel core i7 4930K
16GB Corsair Dominator GT 2133Mhz
GTX 780 SLi.
Windows 7 64bit

We will have a look for new x79 motherboard drivers on asus' page and try that !


Btw I haven't had any issues with the Crucual BallistiX Tactical on my own motherboard.... mm I have bought a set of 16GB G.Skill Ares 1866MHz RAM which I wanted to use for my planned Core i7 4930K (which I'm now unsure of if I'll buy), - we could try to use these in the system instead and see if that makes any difference !
 
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latest bios is 4302 - is the above just a typo above?

I would first off try and rule out system instability - can they run Prime95 ok for about 10 minutes?
If thats ok then we can be sure it's graphics related.
 
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SimonMaltby said:
latest bios is 4302 - is the above just a typo above?

I would first off try and rule out system instability - can they run Prime95 ok for about 10 minutes?
If thats ok then we can be sure it's graphics related.
Click to expand...

Yea. it was a typo (corrected it now) - it was that number that was listed on the asus website when you want to download, but the bios version is 4302 on POST.

Will try prime95 for 30mins now. Just to be sure.
 
Gripen90 said:
I usually install the GFX driver with SLI disabled and the install the x79 patch and reboot and then enable SLI.

But this 4930K just isn't happy with PCIE 3.0 and we haven't even OC'ed. We are thinking of just calling it off, and go back to 3930K and keep going with this until Skylake hits some time 2015.
Click to expand...

the "patch" has never worked for me, not even once, I always have to do it the manual/bios way to get both cards set to 3.0 (and thus working glitch free)
if you are running 2133 memory then you ARE overclocking, it may need a voltage bump to get the memory stable (even when using XMP)
 
andybird123 said:
the "patch" has never worked for me, not even once, I always have to do it the manual/bios way to get both cards set to 3.0 (and thus working glitch free)
if you are running 2133 memory then you ARE overclocking, it may need a voltage bump to get the memory stable (even when using XMP)
Click to expand...

We have tried to run Prime95 for a couple of hrs with standard clocks and memory running 2133mhz and we have also tried 1866mhz at 1.5v - everything is stable here.
We then benchmarked at these setting with stock clock and 2133@1866MHz 1.5v running PCIE 2.0 and installed the latest beta chipset driver. Everything running rock solid.
We then tried the X79 patch and enabled PCIE 3.0, but the problem persists.
The FPS just jumps up and down and about 30 sec later it's black screen and no signal on the PC is "frozen".

Last chance now is we're going through Forceware 314.07 (inf modified) 320.49 and some of the 326.xx beta's for testing.

If this doesn't work, we'll take my 64GB Kingston SSD and try to make a new install of Win 7 64bit and boot up into this and do a clean install of all drivers to see if it finally will run.... if that doesn't work then we're almost at giving up :confused:. Either we try with a different motherboard or he'll return the 4930K and buy a 3960X instead.
 
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I wouldn't have thought the Nvidia drivers with PCI-E 3.0 support will be too long in coming. Sounds like it would be easier to wait it out?
 
stephenb said:
I wouldn't have thought the Nvidia drivers with PCI-E 3.0 support will be too long in coming. Sounds like it would be easier to wait it out?
Click to expand...

Maybe ... but if it doesn't work with a PCIE 3.0 patch one could fear that PCIE 3.0 is just unstable overall.

At the moment we're putting win 7 64bit on a SSD for trying from scratch.:rolleyes:
 
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