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AnsweredVideo card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question.

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NickNasc
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2014/07/28 21:19:14 (permalink)
This was moved to general hardware when it is a SPECIFIC question about the Z97 Classified not seeing my Gen 2 pcie card as Gen 2 but reporting it as Gen 1.
 
The questions was as follows.
XFX  Radeon HD 5870 XXX 1GB 256-Bit DDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity
 
OK SO I see this and I have always thought these cards were Pcie Gen 2   Mine shows here ( ON THE Z97 CLASSIFIED)  as Gen 1 by default.  Am I wrong or do I set it by force to Gen 2?  Also how much am I missing out on if it is being used as Gen one VS Gen 2?
 
Thank you for any info.
post edited by NickNasc - 2014/07/28 21:21:29

Case: Lian Li 011 Dynamic XL Black
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    kioto
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/29 10:46:08 (permalink) ☼ Best Answerby NickNasc 2014/07/29 12:10:46
    Hi Nick, on my motherboard I had to force GEN3 for my GTX780 Ti. So if I were you I would force GEN2/GEN3 (I think GEN3 is backwards compatible, but I'm not 100% certain) and load up GPU-Z to check. On my gigabyte, the PCI-E GEN settings were set to auto by default, yet it did not switch to GEN3 for my 780, I had to manually set it. Test it out, let me know what happens, I would go with GEN3 first and see if it works. Good luck!
     
    Note: As for the differences in generation, assuming we're talking about a x16 lane slot, each direction:
    Gen v1.x: 4 GB/s bandwidth (40 GT/s raw bit rate),
    Gen v2.x:  8 GB/s bandwidth (80 GT/s raw bit rate) and
    Gen v3.0: 15.75 GB/s bandwidth (128 GT/s raw bit rate).
     
    Now hypothetically speaking, if your card is only using 3.8 GB/s in bandwidth, using GEN2 will not improve anything. However, if your card can use 6 GB/s of bandwidth but GEN1 is limiting it to 4 GB/s, switching it to GEN2 would allow the card to fully use the 6 GB/s of bandwidth, so having it set to GEN1 is actually limiting the performance. I don't know what bandwidth your card uses, how high it can go, these numbers are just as an example. Hope this helps!
     
    Edit: GEN3 is fully backwards compatible, you can read more here (question #6). I suggest setting it to GEN3.
    post edited by kioto - 2014/07/29 10:56:16

    || MM Ascention Case | Gigabyte GA-Z97X Gaming 7 | Intel Core i7-4790K | G.Skill Ripjaws Z 16GB 2x8 | EVGA GTX 780ti | Samsung 840 EVO 500GB | Tagan BZ Series 1300W | 480 Dual Rad 1/2 ID GPU Loop & 320 Dual Rad 1/2 ID CPU Loop | CPU: 4.8Ghz @ 1.26V & 60C on MaxLoad | RAM: 2400Mhz @ 1.65V | GPU: +400Mhz Core, +500Mhz Mem @ +75mv & 35C on MaxLoad ||
     
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    NickNasc
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/29 14:29:23 (permalink)
    kioto
    Hi Nick, on my motherboard I had to force GEN3 for my GTX780 Ti. So if I were you I would force GEN2/GEN3 (I think GEN3 is backwards compatible, but I'm not 100% certain) and load up GPU-Z to check. On my gigabyte, the PCI-E GEN settings were set to auto by default, yet it did not switch to GEN3 for my 780, I had to manually set it. Test it out, let me know what happens, I would go with GEN3 first and see if it works. Good luck!
     
    Note: As for the differences in generation, assuming we're talking about a x16 lane slot, each direction:
    Gen v1.x: 4 GB/s bandwidth (40 GT/s raw bit rate),
    Gen v2.x:  8 GB/s bandwidth (80 GT/s raw bit rate) and
    Gen v3.0: 15.75 GB/s bandwidth (128 GT/s raw bit rate).
     
    Now hypothetically speaking, if your card is only using 3.8 GB/s in bandwidth, using GEN2 will not improve anything. However, if your card can use 6 GB/s of bandwidth but GEN1 is limiting it to 4 GB/s, switching it to GEN2 would allow the card to fully use the 6 GB/s of bandwidth, so having it set to GEN1 is actually limiting the performance. I don't know what bandwidth your card uses, how high it can go, these numbers are just as an example. Hope this helps!
     
    Edit: GEN3 is fully backwards compatible, you can read more here (question #6). I suggest setting it to GEN3.




     
    ONE more thing.  I set it to Gen 2 and 3 ( found out that the card is PCIe 2.1  ) but every time I reboot it still says in the upper right that it is GEN 1 X 16      
     
    Nick

    Case: Lian Li 011 Dynamic XL Black
    Displays:   2X  4K  Samsung UE510 28" Ultra HD  1X 2K  32" 144hz Gaming  X1 Samsung 55" 4K

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    kioto
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/29 16:29:57 (permalink) ☄ Helpfulby NickNasc 2014/08/07 18:14:16
    Download CPU-Z and see what that is telling you in windows. Let me know here, I'll research while you figure this one out.

    || MM Ascention Case | Gigabyte GA-Z97X Gaming 7 | Intel Core i7-4790K | G.Skill Ripjaws Z 16GB 2x8 | EVGA GTX 780ti | Samsung 840 EVO 500GB | Tagan BZ Series 1300W | 480 Dual Rad 1/2 ID GPU Loop & 320 Dual Rad 1/2 ID CPU Loop | CPU: 4.8Ghz @ 1.26V & 60C on MaxLoad | RAM: 2400Mhz @ 1.65V | GPU: +400Mhz Core, +500Mhz Mem @ +75mv & 35C on MaxLoad ||
     
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    NickNasc
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/29 18:58:34 (permalink)
    kioto
    Download CPU-Z and see what that is telling you in windows. Let me know here, I'll research while you figure this one out.




     
    Here is the info under Video,  I have attached a screenshot.
     
     
     
    post edited by NickNasc - 2014/07/29 19:03:49

    Attached Image(s)


    Case: Lian Li 011 Dynamic XL Black
    Displays:   2X  4K  Samsung UE510 28" Ultra HD  1X 2K  32" 144hz Gaming  X1 Samsung 55" 4K

    CPU:AMD 2700X 4.05 GHZ
    MOBO:   ASUS Crossfire 8 Hero WIFI X570
    VGA:  EVGA RTX 2060 XC ULTRA

    Ram: 32 GB Trident Z NEO 3600 Mem DDR4 
    Primary Drives: Sabrent M.2 Gen 4 1tb  Samsung M2 950 Pro 512gb, Samsung  850 Pro 512 SSD x 4,  1x 4tb Performance WD HDD 1x 6TB WD HDDBlack

    PSU: Thermaltake Tough power Grand 850psu
    Cooling: EVGA CLC 280
    OS: Win 11 64 Pro 

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    Gomez99
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/29 21:08:15 (permalink)
    Use GPU-Z not cpuz


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    kioto
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/30 03:09:09 (permalink)

     
    Should look like this.
     

    Attached Image(s)


    || MM Ascention Case | Gigabyte GA-Z97X Gaming 7 | Intel Core i7-4790K | G.Skill Ripjaws Z 16GB 2x8 | EVGA GTX 780ti | Samsung 840 EVO 500GB | Tagan BZ Series 1300W | 480 Dual Rad 1/2 ID GPU Loop & 320 Dual Rad 1/2 ID CPU Loop | CPU: 4.8Ghz @ 1.26V & 60C on MaxLoad | RAM: 2400Mhz @ 1.65V | GPU: +400Mhz Core, +500Mhz Mem @ +75mv & 35C on MaxLoad ||
     
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    NickNasc
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/30 10:55:09 (permalink)
    kioto

     
    Should look like this.
     



    When I look at the Bio screen it still says gen 1 but here is says 2.0  SO I guess it is working but I still don't get the Bios reading.  
     
     

    Attached Image(s)


    Case: Lian Li 011 Dynamic XL Black
    Displays:   2X  4K  Samsung UE510 28" Ultra HD  1X 2K  32" 144hz Gaming  X1 Samsung 55" 4K

    CPU:AMD 2700X 4.05 GHZ
    MOBO:   ASUS Crossfire 8 Hero WIFI X570
    VGA:  EVGA RTX 2060 XC ULTRA

    Ram: 32 GB Trident Z NEO 3600 Mem DDR4 
    Primary Drives: Sabrent M.2 Gen 4 1tb  Samsung M2 950 Pro 512gb, Samsung  850 Pro 512 SSD x 4,  1x 4tb Performance WD HDD 1x 6TB WD HDDBlack

    PSU: Thermaltake Tough power Grand 850psu
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    OS: Win 11 64 Pro 

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    kioto
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/30 13:36:25 (permalink) ☄ Helpfulby NickNasc 2014/08/07 18:14:01
    I think the slot is auto-switching but I'm not entirely sure. For instance, when I first boot my PC into windows, it'll show me 3.0 in GPU-Z, but if I leave it idle for a while it goes back down to 1.0. However, once I start a 3d application, it switches back to 3.0. So I think during boot, the slot is at 1.0. Anyways, it looks like you're all good now. Cheers!

    || MM Ascention Case | Gigabyte GA-Z97X Gaming 7 | Intel Core i7-4790K | G.Skill Ripjaws Z 16GB 2x8 | EVGA GTX 780ti | Samsung 840 EVO 500GB | Tagan BZ Series 1300W | 480 Dual Rad 1/2 ID GPU Loop & 320 Dual Rad 1/2 ID CPU Loop | CPU: 4.8Ghz @ 1.26V & 60C on MaxLoad | RAM: 2400Mhz @ 1.65V | GPU: +400Mhz Core, +500Mhz Mem @ +75mv & 35C on MaxLoad ||
     
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    NickNasc
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/07/30 14:11:40 (permalink)
    kioto
    I think the slot is auto-switching but I'm not entirely sure. For instance, when I first boot my PC into windows, it'll show me 3.0 in GPU-Z, but if I leave it idle for a while it goes back down to 1.0. However, once I start a 3d application, it switches back to 3.0. So I think during boot, the slot is at 1.0. Anyways, it looks like you're all good now. Cheers!


    That makes sense!  Thank you very much!  I wish Corsair helped as much with this pesky memory issue and I would be all good!  I do love my new build though.  Ram is now the choke point.

    Case: Lian Li 011 Dynamic XL Black
    Displays:   2X  4K  Samsung UE510 28" Ultra HD  1X 2K  32" 144hz Gaming  X1 Samsung 55" 4K

    CPU:AMD 2700X 4.05 GHZ
    MOBO:   ASUS Crossfire 8 Hero WIFI X570
    VGA:  EVGA RTX 2060 XC ULTRA

    Ram: 32 GB Trident Z NEO 3600 Mem DDR4 
    Primary Drives: Sabrent M.2 Gen 4 1tb  Samsung M2 950 Pro 512gb, Samsung  850 Pro 512 SSD x 4,  1x 4tb Performance WD HDD 1x 6TB WD HDDBlack

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    zildjian75
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/08/07 12:45:12 (permalink) ☄ Helpfulby NickNasc 2014/08/07 18:13:44
    Just so you know nick...  I have the same gen 1 issue in the bios.  EVGA has acknowledged that it is a BIOS mis-reporting issue.  Go by gpu-z...  The cards down-clock when not being utilized so that is why you see it changing in gpu-z...  judging from your gpu-z pic, it appears you are good to go.
     
    I don't know why EVGA didn't address this in the latest BIOS release...  Maybe it will be addressed in the next BIOS update.
     
    You can read a thread I posted about this problem here...
    http://forums.evga.com/8x...t-16x16x-m2185490.aspx

    "The wise know their weakness too well to assume infallibility; and he who knows most, knows best how little he knows."   Thomas Jefferson
     
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    NickNasc
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    Re: Video card/pcie question. XFX HD 5870 xxx Z97 Classified SPECIFIC Question. 2014/08/14 06:58:45 (permalink)
    zildjian75
    Just so you know nick...  I have the same gen 1 issue in the bios.  EVGA has acknowledged that it is a BIOS mis-reporting issue.  Go by gpu-z...  The cards down-clock when not being utilized so that is why you see it changing in gpu-z...  judging from your gpu-z pic, it appears you are good to go.
     
    I don't know why EVGA didn't address this in the latest BIOS release...  Maybe it will be addressed in the next BIOS update.
     
    You can read a thread I posted about this problem here...
    http://forums.evga.com/8x...t-16x16x-m2185490.aspx


     
    Yep you are correct....    I went ahead and sprung for a Evga GTX 780 Classified to finish this build.  They were on sale and I couldn't resist ......................
     
    Thanks

    Case: Lian Li 011 Dynamic XL Black
    Displays:   2X  4K  Samsung UE510 28" Ultra HD  1X 2K  32" 144hz Gaming  X1 Samsung 55" 4K

    CPU:AMD 2700X 4.05 GHZ
    MOBO:   ASUS Crossfire 8 Hero WIFI X570
    VGA:  EVGA RTX 2060 XC ULTRA

    Ram: 32 GB Trident Z NEO 3600 Mem DDR4 
    Primary Drives: Sabrent M.2 Gen 4 1tb  Samsung M2 950 Pro 512gb, Samsung  850 Pro 512 SSD x 4,  1x 4tb Performance WD HDD 1x 6TB WD HDDBlack

    PSU: Thermaltake Tough power Grand 850psu
    Cooling: EVGA CLC 280
    OS: Win 11 64 Pro 

    #12
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