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Thread: ASRock z77 Extreme6 SLI/CFX power help.




  1. #1
    grimreaper1014 is offline Junior Member
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    Default ASRock z77 Extreme6 SLI/CFX power help.

    Hello,

    I have a question about the 4 pin molex connector that you are suppose to connect when using 2 more more video cards on the ASRock z77 Extreme6. I have the Corsair AX850 PSU and the cable for the 4 pin molex connectors has 4 molex I believe but the problem is they are very close together. The best way I have found is to run this cable and the 8 pin power cable up the back of my HAF 912 case and threw the the top hole in the case. However, when I do this the 4 pin molex cable provides a problem for me. I end up with one extra molex connector laying across the board and the rest of them in the cable management cabinet. I am worried I will not be able to get the door on with the 4 pin molex cable running up the back of the case. There is very little room back there on the HAF 912. More importantly I cant use that 4 pin molex cable for anything else like fans ect. Then, I really wouldn't be able to get the case on more than likely. I would just like to know how other people are doing it? I have looked up pictures online but all the pics online I have found I have seen people with my same video cards (dual Sapphire 7970's) not even connecting the 4 pin SLI/CFX connector on the motherboard. In the manual it says you must connect it when using two or more video cards as I have stated above. Is there a more efficent adapter cable I can buy for my AX850 to accomplish this, and to make it look better? If so could someone link me to where I can purchase one? Also, any pics of how other people achieved this would be great.

    Thanks,
    Rocky

    PS. I have uploaded two pics of the problem I am having for a better understanding of what I am talking about.




  2. #2
    profJim's Avatar
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    How about a 72" sleeved molex extension cable: Amazon.com: 72 inch 4 pin Molex Extension Cable Sleeved: Electronics
    A web search using: molex extension cable will help you find a more reasonable cable length.
    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
    grimreaper1014 is offline Junior Member
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    Quote Originally Posted by profJim View Post
    How about a 72" sleeved molex extension cable: Amazon.com: 72 inch 4 pin Molex Extension Cable Sleeved: Electronics
    A web search using: molex extension cable will help you find a more reasonable cable length.
    Thanks for your help. I appreciate it. I will see what I can find.

    In the ASRock motherboard manual for this board it says there are six fan connectors. Two for the CPU labeled CPU_FAN1 and CPU_FAN2, Three chassis labeled CHA_FAN1-3, and one power fan connector labeled PWR_FAN. What is the difference between PWR_FAN and the ones for the chassis fans? What is it suppose to be used for? Like I know the CPU fan connectors are for the CPU fans, and the chassis are for case fans but what is PWR_FAN?
    Last edited by grimreaper1014; 02-05-2013 at 10:41 PM.

  4. #4
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    You're welcome.
    Let us know what cable length works best with your setup.
    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
    .


  5. #5
    grimreaper1014 is offline Junior Member
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    Quote Originally Posted by profJim View Post
    You're welcome.
    Let us know what cable length works best with your setup.
    Ok I will. I'm going to try to measure how much length I will need to give me a rough estimate. Another thing I am kinda confused about is the crossfire bridge connectors on the Sapphire 7970 Dual-X's. It has two on each card. I was told to just use one bridge from card 1 to card two. The cards have two crossfire connectors on each labeled 1 and 2. However, when I was looking up pictures to get and idea of how people where connecting the SLI/CFX power connector I noticed people using the same cards where using two crossfire bridges. One from connector 1 to connector 1 on card one, and another bridge from connector 2 to connector 2 for card two. Could someone left me know which way is right?

  6. #6
    profJim's Avatar
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    Check the video card's user manual.
    I think that you will find that only one bridge is needed with your CrossFireX setup.
    The second bridge connector is probably only needed if you are running a three card setup, where the additional connector would connect to the second and the third video cards. An Nvidia three card setup would use the same type of setup using two SLI bridge connectors for a three card setup.

    Look for a review from a respected web site for similar cards using two card and three card setups and look for photos that show the bridge setups for each configuration.
    As a last resort, you can email Sapphire tech support for the proper bridge connector setup.

    I'm guessing that the owners with two cards and using two bridges don't know what they're doing.
    Let me know if I'm wrong.
    Last edited by profJim; 02-05-2013 at 11:09 PM.
    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
    grimreaper1014 is offline Junior Member
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    I sent Sapphire a e-mail on this as I did a lot of searching and could not find out what is for sure the right way. Also the manual was no help. The manual shows two pictures. One with one CFX bridge and one with two on a two card setup. It is saying you can do it either way. I e-mailed them just to be sure about that. I will post back my findings.

    I wonder if a store like Radio Shack would have a 4 pin extension cable? I really want to get this build done. I don"t feel like waiting for a cable to be sent. Plus I can"t think of anything else I would need to order to make it worth it lol.

  8. #8
    profJim's Avatar
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    In my original google search, this link for a plain 10" molex cable extension was on the first page:
    10-Inch Disk Drive Power Extension Cable : Extension Cables | RadioShack.com

    You'll need to check for availability at a store near you, and check for different lengths if needed.
    Another option is a pc recycle store if there is one near you.
    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
    .


  9. #9
    grimreaper1014 is offline Junior Member
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    Before asking around about the CFX bridges I contacted Sapphire about them. They finally replied the other day. Their response was to use both CFX bridges for best performance. Everyone else said to use one as you mentioned. I hope they mean CFX bridges and now the two power cables on each card. Anyways, I ended up ordering a 12" four pin molex extension cable. It worked perfectly. I also ended up ordering some three pin y cables for my case fans. That way I could run a total of six case fans. I got two 120mm case fans connect to each of the three fan connectors on the ASRock z77 Extreme 6. I figured I would post back with the size of the extentsion cable I used. Maybe it will help someone else in the future.

  10. #10
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    Default Re: ASRock z77 Extreme6 SLI/CFX power help.

    Glad to hear that it worked out, thanks for the update.

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