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Thread: P55-UD3R 4-pin or 8-pin connector?




  1. #1
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    Default P55-UD3R 4-pin or 8-pin connector?

    Hello everybody,

    I have registered to the forums and wanted to ask this question directly to you because it is blowing my mind. I have just bought a P55-UD3R. My other system elements are
    CPU: i5 750
    GPU: Ati HD5850
    HDD: Seagate 500gb sata
    RAM: Kingston 4gb HyperX 2000mhz dual channel
    PSU: FSB Bluestorm 2 500W
    And I am using Vista Home Premium

    Anyway, when I made the installation of my pc, I have realized that my psu has not a 8-pin cpu power connector. Instead there was a 4-pin cable. In the manual it says that 8-pin connector is for 2x4 cables but I may use the 2x2 cable to fill the 4 slots there. My question is that is it safe to use it like that? Considering that i will play high-end games which will consume lots of power. I have looked in internet for a while and some people says you can use it some says you can not. There is also an idea which is you can use 4-pins if you don't have a quad core. I am totally confused.
    I am looking forward to your answer. Thank you.

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    A google search on
    atx12v 8 pin adapter
    turned up several options for adapters that might be OK.
    You can't use an adapter that uses a single molex adapter that connects a single 4-pin molex to an atx_12v 4-pin connector. If you look closely at the 8-pin mobo connector, you'll see that you can't use 2 identical 4-pin plugs.

    I can't say for sure if your current psu will be able to safely power your P55/5850 setup. One area where I don't cut corners is with my psu, it's the foundation for our systems. Your best bet is to buy a modern quality psu that will have adequate reserves to power your system.

    You can check out Newegg 601 - 700 watt 80 plus power supplies for options. If you decide to upgrade your psu, be sure to check out reviews of your potential psu from quality websites like HardwareSecrets.com for a thorough review of the good, the bad, and the ugly facts.

    You might need to go with a bit more powerful unit if you think that you will run a CrossFire setup in the future.
    Corsair seems to offer the best bang for your bucks when it comes to top tier power supplies.
    Other top tier units are from Seasonic and PC Power & Cooling.
    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
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    To overclock or not to overclock that is the question......the 4 pin connection is fine within the 95watt TDP of normal operation. If your going to push it past spec you'll need the extra power supplied by the 8 pin setup. Everest (if it's accurate ) Claims my OC <3.8ghz> at 100% power test run <linX> eats 238 watts peak. For that type you'd better use the 8 pin connector.....if stock the 4 pin is fine.

  4. #4
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    yes the four pin is fine for upto 3.2ghz as i ran my i7 for weeks on my old 300w 4pin psu while i waited for my 1050w psu to arrive,and the i7 750/860 use less power than the 920's 95w compared to a 920's 130w@stock
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  5. #5
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    Thank you for your answers. I am not planing to do some overclock in the next 1 - 1.5 year so it is not an issue for me right now.. I will also definitely not use another graphic card with crossfire. However having a better psu is a good idea but costly too. I also have a strange problem which I want to ask you.

    I hear a stange noise coming from my psu. It is like tıssss tıss tıssss. It sounds like electrical not like a fan issue but i am not an expert on this. When I first hear it I was on the installation screen of vista to my new HDD. After I realized that I knew something is not right. But I am not sure if it is coming from my psu or not. I can hear it clearer when I move closely to my psu.
    Anyway I started some tests. First I changed my graphic card with my older one. It is an ati x1800 xl. But the noise was still there. Then I put my new card back and changed my HDD this time with older one which is samsung 160gb sata. The noise was still there as well. I aslo think that there is not any stange noise during system start but the second I see the vista logo and then my desktop, the noise comes.
    Then I decided to test my psu this time. I removed everything and installed my old pc. As mainbord asus p5b, 2 gb kingston ddr2 667, intel core 2 duo e6420 and x1800xl + 160gb sata samsung. There wasn't any noise this time! It was just as I remembered. Stable and quiet. I even made a clear format-vista install.

    Now here is my question: Is this stange noise related to my 4-pin issue? Have you heard anyhing about it or experienced?

    If it is not related then what is wrong with my pc? We know that it is not about GPU or HDD. And I think rams are not capable of doing something like that. So is it about my new board or cpu. Or it is all about having insufficient power supply? By the way I am also using a UPS which is 650VA and 1.5 years old.( It saved my pc countless times from the voltage changes in my neighbourhood.) Is it aslo a factor here?

    I know it was a long post but I really appreciate our help. Thank you guys.

  6. #6
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    Quote Originally Posted by Justifier View Post
    Thank you for your answers. I am not planing to do some overclock in the next 1 - 1.5 year so it is not an issue for me right now.. I will also definitely not use another graphic card with crossfire. However having a better psu is a good idea but costly too. I also have a strange problem which I want to ask you.

    I hear a stange noise coming from my psu. It is like tıssss tıss tıssss. It sounds like electrical not like a fan issue but i am not an expert on this. When I first hear it I was on the installation screen of vista to my new HDD. After I realized that I knew something is not right. But I am not sure if it is coming from my psu or not. I can hear it clearer when I move closely to my psu.
    Anyway I started some tests. First I changed my graphic card with my older one. It is an ati x1800 xl. But the noise was still there. Then I put my new card back and changed my HDD this time with older one which is samsung 160gb sata. The noise was still there as well. I aslo think that there is not any stange noise during system start but the second I see the vista logo and then my desktop, the noise comes.
    Then I decided to test my psu this time. I removed everything and installed my old pc. As mainbord asus p5b, 2 gb kingston ddr2 667, intel core 2 duo e6420 and x1800xl + 160gb sata samsung. There wasn't any noise this time! It was just as I remembered. Stable and quiet. I even made a clear format-vista install.

    Now here is my question: Is this stange noise related to my 4-pin issue? Have you heard anyhing about it or experienced?

    If it is not related then what is wrong with my pc? We know that it is not about GPU or HDD. And I think rams are not capable of doing something like that. So is it about my new board or cpu. Or it is all about having insufficient power supply? By the way I am also using a UPS which is 650VA and 1.5 years old.( It saved my pc countless times from the voltage changes in my neighbourhood.) Is it aslo a factor here?

    I know it was a long post but I really appreciate our help. Thank you guys.
    go into the bios under advanced cpu features and turn off c1e enhanced halt state,its this that is making the sound it does it on my board its the intel power saving feature built into the motherboard...my board doesnt make the noise so much now,update the lan drivers and chipset drivers from gigabytes website and it makes the sound less noticable and not so loud
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  7. #7
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    Vow.. you mean power saving feature is causing problem in my psu and creating noise there as a result? I was using the latest drivers for everything by the way.
    I will have time to rebuilt my pc only on tuesday so I can not test it right now. After disabling the feature, is reduction in noise level dramatic or just a little?

  8. #8
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    Default Re: P55-UD3R 4-pin or 8-pin connector?

    Quote Originally Posted by Justifier View Post
    Vow.. you mean power saving feature is causing problem in my psu and creating noise there as a result? I was using the latest drivers for everything by the way.
    I will have time to rebuilt my pc only on tuesday so I can not test it right now. After disabling the feature, is reduction in noise level dramatic or just a little?
    no its not the psu its a common problem to hear noise just disable c1e in the bios and no noise will be heard,my board makes this noise maybe new bios's will fix it
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

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