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Thread: PCI Express 8X Gen 2 Problem




  1. #1
    Join Date
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    Default PCI Express 8X Gen 2 Problem

    My partner recently had a rig built for me to cheer me up after some personal problems. Details are in my sig. Total surprise for me so very nice gift. My reason for posting is GPUZ and the NVidia Control Panel detailed info show my GTX570 as being PCI Express x8 Gen 2. Now The card is in the top slot, PCI Express 16 labelled clearly. There is nothing occupying the other PCI Express slots. Most bios options are all at stock. She got me the 2600 not the 2600k so no over-clocking done on the board for CPU. Am I missing something or is that the way it is supposed to be? Things run very nicely but a friend pointed it out to me yesterday when he came to inspect my new toy.

    Thanks in advance

    Chris
    GA-P67A-UD5 Rev. 1.0 F6
    Intel Core i7-2600 3.40GHz (Sandybridge) all at stock
    Prolimatech Megahalems Rev B CPU Cooler
    Corsair Vengeance 8GB (2x4GB) DDR3 PC3-12800C8 1600MHz Dual Channel Kit
    POV GTX570 TGT Beast at stock
    Coolermaster 850W PSU
    Corsair Obsidian 800D Full Tower Case
    Benq XL2410T 24" TRUE 120Hz Monitor

  2. #2
    profJim's Avatar
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    Default Re: PCI Express 8X Gen 2 Problem

    Is the PCI-e 8X slot being used?

    From your motherboard user manual:
    Expansion Slots
    • 1 x PCI Express x16 slot, running at x16 (PCIEX16)
      For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
    • 1 x PCI Express x16 slot, running at x8 (PCIEX8)
      The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated with a PCI Express graphics card, the PCIEX16 slot will operate at up to x8 mode.
    • 1 x PCI Express x16 slot, running at x4 (PCIEX4)
      The PCIEX4 slot shares bandwidth with the PCIEX1_1 and PCIEX1_2 slots. When the PCIEX1_1 slot or the PCIEX1_2 slot is populated with an expansion card, the PCIEX4 slot will operate at up to x1 mode.
    • 2 x PCI Express x1 slots
    • (All PCI Express slots conform to PCI Express 2.0 standard.)
    • 2 x PCI slots
    • Multi-Graphics Technology
    • Support for 2-Way ATI CrossFireX™/NVIDIA SLI technology
      (The PCIEX16 and PCIEX8 slots only.)
    The Gigabyte site shows that there is a "-B3" replacement version of your motherboard to fix the Intel Sandy Bridge chipset problem.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  3. #3
    profJim's Avatar
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    Default Re: PCI Express 8X Gen 2 Problem

    GeForce.com - Get the Most Out of Your GPU shows that the 266.58 WHQL drivers are the most recent certified drivers. Is this what you are running?

    I missed the fact in your first post that no other PCI-e slots are currently in use.
    Did you load optimized bios settings before you made any bios changes?
    Which operating system are you using?
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  4. #4
    Join Date
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    Default Re: PCI Express 8X Gen 2 Problem

    I'm running 64Bit Windows 7. I have done the optimised bios settings. Could any kind of power saving option cause this type of glitch do you thing? My brother is bringing around a GTX460 so I can hopefully eliminate the gfx card from this scenario.
    GA-P67A-UD5 Rev. 1.0 F6
    Intel Core i7-2600 3.40GHz (Sandybridge) all at stock
    Prolimatech Megahalems Rev B CPU Cooler
    Corsair Vengeance 8GB (2x4GB) DDR3 PC3-12800C8 1600MHz Dual Channel Kit
    POV GTX570 TGT Beast at stock
    Coolermaster 850W PSU
    Corsair Obsidian 800D Full Tower Case
    Benq XL2410T 24" TRUE 120Hz Monitor

  5. #5
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    Default Re: PCI Express 8X Gen 2 Problem

    Well, I decided to try the Optimise Bios settings again (i'm 99.9% sure I did that before :0/) and bingo. Now it displays quite clearly that it is running in 16x Gen 2 mode. Thank you for your help. Something so simple as well.

    Many many thanks.

    Chris
    GA-P67A-UD5 Rev. 1.0 F6
    Intel Core i7-2600 3.40GHz (Sandybridge) all at stock
    Prolimatech Megahalems Rev B CPU Cooler
    Corsair Vengeance 8GB (2x4GB) DDR3 PC3-12800C8 1600MHz Dual Channel Kit
    POV GTX570 TGT Beast at stock
    Coolermaster 850W PSU
    Corsair Obsidian 800D Full Tower Case
    Benq XL2410T 24" TRUE 120Hz Monitor

  6. #6
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: PCI Express 8X Gen 2 Problem

    Here is my GPU-z screenshot.
    I'm haven't enabled any bios power savings features with my overclocked setup.
    With win7 x64, I'm using balanced power savings where the only enabled option is to turn off my monitor after 45 minutes.

    PCI Express 8X Gen 2 Problem-p35-ds3l-msi-n460gtx-win7-x64-screenshot-png
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  7. #7
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Thumbs up Re: PCI Express 8X Gen 2 Problem

    Glad to hear that your setup is fixed.
    BTW, wash and wear socks don't need ironing.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  8. #8
    Join Date
    Mar 2011
    Location
    Gloucester
    Posts
    5

    Default Re: PCI Express 8X Gen 2 Problem

    Ha ha ha. Thanks once again :-)
    GA-P67A-UD5 Rev. 1.0 F6
    Intel Core i7-2600 3.40GHz (Sandybridge) all at stock
    Prolimatech Megahalems Rev B CPU Cooler
    Corsair Vengeance 8GB (2x4GB) DDR3 PC3-12800C8 1600MHz Dual Channel Kit
    POV GTX570 TGT Beast at stock
    Coolermaster 850W PSU
    Corsair Obsidian 800D Full Tower Case
    Benq XL2410T 24" TRUE 120Hz Monitor

  9. #9
    Join Date
    Jun 2011
    Location
    Indiana
    Posts
    22

    Default Re: PCI Express 8X Gen 2 Problem

    Hey guys just made an account because I am having this issue. Don't know how to display my system specs on the forum yet, but I will figure that out later. Anyhow I am running a GTX 460 on my M4A89GTD Pro/USB3 board on BIOS version 2101. Both PCI-E x16 2.0 slots are clearly labeled, and it shows the same in my motherboard manual. I'm running Windows 7 64 Bit. The card is running solo, no SLI. I tried it in both slots and only one of them reads it correctly as x16, the other reads as x8 and should be x16. The reason I ask for fix even though one slot works correctly, the one that reads incorrectly has a much better airflow position than the one that reads correctly. What I'm wondering is which option in the BIOS setup do I need to change in order to fix the issue. The help would be greatly appreciated.
    Last edited by 760slayer; 06-23-2011 at 04:10 PM.

  10. #10
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: PCI Express 8X Gen 2 Problem

    From the Asus web page for your motherboard:
    2 x PCIe 2.0 x16 support ATI CrossFireX™ technology(@dual x8 speed)
    Check your motherboard user manual where you might find that your second pci-e slot might always run at 8x speeds.
    The answer might be what Asus means by "2.0 x16 support" for the second slot.
    You might find the information if you do a web search using: m4a89gtd pro review

    To list your system components in your signature:
    --> User CP tab (upper left corner of web page)
    --> select Edit Signature
    --> enter your hardware components (brand, model, etc.)
    --> include your bios version
    --> preview
    --> Save when complete
    Be sure to include your bios version, motherboard version, power supply, cpu heatsink/fan setup and the model numbers of all components.

    Let us know what you find.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


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