Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Results 1 to 3 of 3

Thread: HD4870x2 Molex connector trouble




  1. #1
    Join Date
    Jul 2008
    Location
    Netherlands
    Posts
    13

    Default HD4870x2 Molex connector trouble

    Hi,
    <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
    <o:p></o:p>
    I have a question about making my own 8-pin PCI-E connector for the HD 4870x2.
    <o:p></o:p>
    <o:p></o:p>
    Let me start by explaining whatís going on.
    <o:p></o:p>
    <o:p></o:p>
    My CoolMaster RealPower has 2, 6-pin outlets and 2, 8-pin outlets for the PCI-E.<o:p></o:p>
    Look at link to understand.<o:p></o:p>
    http://www.alternate.nl/html/product...r+dan+600+Watt<o:p></o:p>
    <o:p></o:p>
    The green and blue connectors are what Iím talking about.
    <o:p></o:p>
    The cable that came with it has a on one side a blue PCI-E connector and on the other side a 6-pin connector.<o:p></o:p>
    <o:p></o:p>
    For some odd reason I only have one adapter cable being a 8-pin connector but has 2 empty slots, so in other words is a 6-pin connector with options.
    <o:p></o:p>
    <o:p></o:p>
    Still with me?

    <o:p></o:p>
    The Sapphire HD 4870x2 on the other hand came with a, on one side black 8-pin PCI-E connector and on the other side a standard (male) flat 4-pin white Molex connector.

    <o:p></o:p>
    <o:p></o:p>
    <o:p></o:p>
    Now comes the technical questions and what I did so far.<o:p></o:p>

    I took the PCi Express connector that came with the PSU, cut off the 6-pin PCI-E connector from the bottom end and added 2 wires to the blue connector to complete the 8-pin's PCI-E connector.
    <o:p></o:p>
    I also cut off the 2x 4-pin white Molex which came with the HD 4870x2 adapter cable at one end leaving me with the 8-pin PCI-E connector.
    <o:p></o:p>
    <o:p></o:p>
    So now I have a blue 8-pin PCI-E with loose wires and a black 8-pin PCI-E with loose wires which I intend to connect via a bridge.
    <o:p></o:p>
    <o:p></o:p>
    <o:p></o:p>
    When I checked the PSU manual I saw a picture where the 12v pinís are situated for the PSU.<o:p></o:p>
    It looks like this, where the * is a pin.

    pin ___________pin
    1 | * 12v | * com | 5
    2 | * 12v | * com | 6
    3 | * 12v | * com | 7
    4 | * com | * com | 8
    - |______________|<o:p></o:p>
    is the lock>#
    <o:p></o:p>
    <o:p></o:p>
    I hope you're still with me...

    <o:p></o:p>
    <o:p></o:p>
    Going from there, I connected the black PCI-E connector (HD 4870x2) the same way.<o:p></o:p>
    <o:p></o:p>
    <o:p></o:p>
    Now the question before I connect the lot....

    Is it as simple as I think it is....?
    Do the wires have a specific place into the connector?<o:p></o:p>
    Just add 2 wires to the one connector and attach the other connector via a bridge in the same order, in effect make an extension cable..
    <o:p></o:p>
    <o:p></o:p>
    I donít want to mess this up cause one wrong 12v pin and I could fry my brand new rig.
    <o:p></o:p>
    <o:p></o:p>
    I wanted to test the theory by trying to connect the blue PCI-E connector to my HD4870 and the black PCI-E connector to my PSU (all without power obviously).. <o:p></o:p>
    Theory being: If it fits both wayís it doesnít matter how you place the connectors, it should work.
    <o:p></o:p>
    <o:p></o:p>
    Well, it didnít so I have a problem, as I canít find a tech. Manual for the Molex connector of my HD4870x2 on any site, Iím stranded with the questionÖ
    <o:p></o:p>
    <o:p></o:p>
    Where do the 12v pinís go in the black PCI-E connector for my HD4870x2.<o:p></o:p>
    <o:p></o:p>

    Thx for any reply regarding the rather long post.

    <o:p></o:p>
    <o:p></o:p>
    PS_ I hope you understand what Iím trying to say here.

    Edit:

    CHANGED ALL MOLEX'S TO PCI-E ... KINDA GOT LOST IN THE MASE OF CONNECTORS.
    Last edited by C DuDe; 08-18-2008 at 01:22 AM.
    Case: Antec Perf. One P180
    PSU: Coolmaster Real Power 850W
    Mobo: Gigabyte X48-DQ6
    Corsair 4Gb Dominator
    Cooler: Coolmaster Hyper 212
    Prcessor: Intel E8400
    Vid-Card: Sapphire HD 4870 CF
    HDD: Seagate 500Gb 7200rpm
    OS: Vista 64/SP1

  2. #2
    Join Date
    Jul 2008
    Location
    Netherlands
    Posts
    13

    Default Re: HD4870x2 Molex connector trouble

    Case: Antec Perf. One P180
    PSU: Coolmaster Real Power 850W
    Mobo: Gigabyte X48-DQ6
    Corsair 4Gb Dominator
    Cooler: Coolmaster Hyper 212
    Prcessor: Intel E8400
    Vid-Card: Sapphire HD 4870 CF
    HDD: Seagate 500Gb 7200rpm
    OS: Vista 64/SP1

  3. #3
    Join Date
    Jul 2008
    Location
    Netherlands
    Posts
    13

    Default Re: HD4870x2 Molex connector trouble

    You know what.....

    Never mind!
    Case: Antec Perf. One P180
    PSU: Coolmaster Real Power 850W
    Mobo: Gigabyte X48-DQ6
    Corsair 4Gb Dominator
    Cooler: Coolmaster Hyper 212
    Prcessor: Intel E8400
    Vid-Card: Sapphire HD 4870 CF
    HDD: Seagate 500Gb 7200rpm
    OS: Vista 64/SP1

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •