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: x99 ud4 - sli with ATX4P no boot, without boots fine




  1. #1
    crookeddeebz is offline Junior Member
    Join Date
    Dec 2014
    Location
    asd
    Posts
    8

    Default x99 ud4 - sli with ATX4P no boot, without boots fine

    Hello, Just got a 2nd gpu for sli. Rig was flying with a single gpu.

    My motherboard wont boot when I have the ATX4P installed for PCIE extra power (as per manual, says with 2+ gpu plug this in)

    First, this is silly as an x99 gen should even have molex. But luckily my evga g2 came with 1 molex style connector.

    Boots fine, havent done any testing or bench without the ATX4P. Either 1 card or two cards of course.

    Any suggestions?

    thank you


    spec:
    x99 ud4
    5820k @4.3
    4x4gb ddr4
    zotac 980 amp omega
    asus strix 980
    evga 750w g2 (gold)

    Things ive tried:
    - diff PSU slot
    - diff molex on the chain
    - 1 card, 2 card same issue
    - sli bridge, no sli bridge
    Last edited by crookeddeebz; 12-02-2015 at 09:13 PM.

  2. #2
    Join Date
    Dec 2010
    Location
    Near Toronto but not in it
    Posts
    627

    Default Re: x99 ud4 - sli with ATX4P no boot, without boots fine

    your power supply isn't big enough...

    go though this power supply calculator and it'll tell you how big you need.

    MSI Canada

    Vin
    Main Rig
    OS = Win10-64Bit
    CPU = Ryzen 1700x Overclocked to 4Ghz with custom water-cooling loop
    Mem = 16GB RAM @ 3200Mhz
    MB = Asus ROG C6H
    GPU = Asus 1080Ti ROG Strix
    HD = 512GB M.2 Samsung 960 Pro
    PSU = EVGA SuperNOVA 1300w
    Case = Cooler Master HAF-X 945

    HTPC / Home Server
    OS = Win7 64Bit running XBMC HTPC Front end with Windows Server 2012 Virtual Machine with 12GB ram assigned for homer server
    CPU = i7-980X @ 3.5Ghz CoolerMasster Hyper 212 Evo
    Mem = 24GB RAM
    MB = Gigabyte GA-X58A-UD5 v1.0 with F6 Bios
    GPU = EVGA nVidia GT210
    HD = 2x PNY 120GB Raid 0 (OS)
    Storage = 8TB WD Black Storage
    PSU = Corsair TX750
    Case = Define R5

  3. #3
    crookeddeebz is offline Junior Member
    Join Date
    Dec 2014
    Location
    asd
    Posts
    8

    Default Re: x99 ud4 - sli with ATX4P no boot, without boots fine

    doubtful, all calcs come to 650-700watt for my rig. im on a 750 gold. sli works with out the atx4p, but not with.

    however i did figure it out.

    Gigabyte actually made the molex slot so you can plug in either direction! im surprised i didnt bin the board

    a molex should only fit one way...however not in the x99-ud4 lol.

    checked the keying, and turned it around. Was problematic before as the h440 doesnt allow much viewage on bottom facing mobo bits.

    please close.

Thread Information

Users Browsing this Thread

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

Tags for this Thread

Posting Permissions

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