2 Replies Latest reply on Apr 6, 2013 11:18 PM by David Marshall

    PCIE capability issuse of 3rd-gen-core CPUs



      i am developing a FPGA PCIE card. the PCIE end-point controller is Xilinx 7 series integrated block, the configuration is GEN2 x8

      i use the mother board which is ASUS P8Z77-M PRO, an Intel Z77 chipset.

      both 2nd-gen-core CPU, a Pentium G620 and Core I3 2120 work fine with the Xilinx FPGA PCIE controller, (link GEN2 x8)

      however, the system cannot find the PCIE end-point while using a 3rd-gen-core CPUs Pentium G2010.


      is there any solution to fix the issue? i am afraid the 2nd-gen-core CPUs are out of the date, there may be a big issue if there is some capability issues between Xilinx FPGA PCIE controller and Intel 3rd-gen-core CPUs


      thanks for the supports!!

        • 1. Re: PCIE capability issuse of 3rd-gen-core CPUs
          Ruben Ramos

          Hi Yilei,

          I was double checking the expansion options that this processor supports and for PCI Express Revision is 2.0 and the PCI Express Configurations it supports are 1x16, 2x8, 1x8 & 2x4.

          So as long as the FPGA PCIe card that you have meets these requirements there should be no problem at all.

          It will be really helpful if you can get in contact with the manufacturer of the card, to check if there is a driver needed or some other specs that this card needs.

          1 of 1 people found this helpful
          • 2. Re: PCIE capability issuse of 3rd-gen-core CPUs
            David Marshall

            I have been actively researching every piece of information I can find. I've been to dozen's of forums, communities, outlets, and I jump on every topic that has anything to do with my concern. I have lost thousands of dollars due to this issue of Gen 3 and PCIe 3.0. The Intel X79 Chipset and the Z77 Chipset both have brought me face to face with some very serious questions and concerns and yet finding an open door where people are eager to say, "Hey, that is me! If this guy is going to do something about it, then count me in!"  Here is my lastest response to a question sent to me by Asus as it relates to their P9X79 WS motherboard and the advertised promised of PCIe 3.0 capability. In just the past couple of weeks Asus has tagged an even smaller notification regarding PCIe 3.0 capability and the need for necessary components. Asus is now saying that the CPU not only needs to be REV. 3.0 but also must be 22nm. Up  until this point I was moving towards my last attempt to salvage something of this "wasted" generation of components, by buying the only Asus product that advertises compatibility with the XEON E5-1660, which is Rev 3.0 capable. The on-sight Asus rep at the "egg" has been in contact with me and assured me that this was the one "safe" road. But when I recently asked about 22nm and what that meant, my question was met with a question. For the X79 Motherboards there is no such product known to consumers that are below a level 25 clearance with the National Security Agency! Here is my reply:




            I specifically want to know if I place the $1,100 XEON
            E5-1660 CPU into the ASUS P9X79 WS 2011 socket, because the XEON E5-1660 is not
            a 22nm CPU, does this mean that this CPU, although listed as compatible with
            the Asus P9X79 WS motherboard, will NOT ENABLE THE PCIe 3.0 that is advertised
            as only capable of working provided the right components are used?






            I have an EVGA GTX
            680 FTW+ 4GB PCIe 3.0 certified Graphics Card
            . I have an ASUS P9X79 WS PCIe 3.0 Capable Motherboard.
            I have an Intel XEON E5-1660 certified
            REV 3.0 capable CPU






            BUT this NEW 22nm additional requirement added to the ASUS
            X79 WS, which can now be found on the outside cardboard sleeve of the box- in
            the upper right hand corner of the front of box, along with Intel's insistence
            that ONLY INTEL GENERATION 3 CPU's will enable true PCIe 3.0 capability, has
            forced me to return TWO purchases of these motherboards.






            The ASUS P9X79 WS I purchased from Amazon actually had its
            listed features of the motherboard changed; reading PCIe 2.0 X 16 capable and
            had removed the once mentioned PCIe 3.0. PCIe 3.0 was not to be found anywhere
            in the Amazon advertisement of specs.






            I brought this change to the phone representative’s attention
            and she checked your Asus site and matched up the discrepancies and notified
            the Amazon technical team. Within one hour the specs read: PCIe 3.0 X16 as it
            had before, but the very next day it was gone and replaced by PCIe 2.0. 






            This has forced me to sell at a considerable loss, an unused
            ASUS P9X79 PRO motherboard as I kept it beyond the 30 period being told that a
            resolution was coming.






            I sold my Intel Sandy Bridge E 3930K CPU as I was unable to
            get GEN 3 readings using utilities such as GPU-Z.






            I am now looking to sell my $1,100 Intel Xeon E5-1660, which
            was new and now used, as I was told it would work with the ASUS X79 PRO.






            There currently is no way I can afford any more financial
            loss by being told it is worth "trying" the XEON E-1660 on the Asus
            P9 X79 WS motherboard. For once I open that Asus X79 WS motherboard I will not
            be able to return it to the seller and avoid a restocking fee because it is






            When Intel, Asus (and all X79 Intel Chipset motherboard
            producers), Evga (and all NVidia based 600 Kepler graphic card producers), and NVidia
            ( the provider of all necessary support such as drivers), all became, by choice
            or by deception, involved in creating an advertised promise that was literally
            impossible to fulfill, I at this point can only do what is financially
            expedient; sell as much as I can as fast as I can of any components that are
            directly or indirectly tied to “Area X79”.






            When the Intel Roadmap disappear into what I call "AREA
            X79" one thing became glaringly obvious; an entire generation of
            components from motherboards to video cards, and to CPU’s were all financial “interim”
            money-makers supporting the weight of Moore’s Law, until a justified and
            sensible line of products were shipped to consumers around the world.






            I have lost money on the sale of an unused but
            "tested" $570 Intel 3930K CPU.






            I have lost money on the sale of a brand new, but tested
            Asus P9X79 PRO motherboard.






            I have lost money having purchased an Evga GTX 680 Graphic
            Card worth $560, as it will never run in an X79 Motherboard slot at full
            potential during the entire course of what is the typical life-span of a “new
            line” of graphic cards.






            When the day finally comes where there is a ”rebranded” X79
            motherboard with a truly “Native and Functional” PCIe 3.0 X 16 slot and enough
            additional other neglected promises obscured by the PCIe 3.0 mystery, such as
            lots of “native USB 3.0” ports, and X79 Chipset supported SATA 6GB/sec hard
            drive ports, and the disappearance of so many unfamiliar manufacturer
            names  who’s products were substituted for
            the “real thing”, just what will this nearly 2 years of wasted hopes, supported
            by wasted money on a wasted generation of components, in hindsight have to say?






            When one of the most praised and promised future-proof 2011
            socket is finally matched with what will emerge from “AREA X79”- the expected
            and long-awaited Intel CPU which will contain the “mystery key”, making it the
            final and available necessary component for every PCIe 3.0 advertised promise, will
            it be both a tick and a tock which together might be enough to restore a hope
            for  long-awaited magical expectations of
            so many heart-broken as well as financially-broken enthusiasts, gamers, work-at-home
            high-end users, and your faithful and loyal build-it-yourselves consumers?






            Yes of course it will work. It is and always has been a part
            of the trusted Intel Roadmap. But will it do more than just work?  All of those 600 series graphic card owners
            will be watching those that “stood this dance out”, dropping into newer and
            better rebranded X79 motherboards, a newer and better, more powerful and faster
            and cooler 700 NVidia series graphic card; cards with a new architecture,
            motherboards with features that make Thunderbolt chasers look like gold
            pan-handlers arriving 10 years after the rivers and streams had surrendered all
            they had to give.






            And will the thrill of the pursuit of “smaller and better”
            shine bright enough so that the tech specs (sunglasses) will polarize out the
            sale of tried but not true, motherboards, graphic cards, and CPUS?