Question about Intel D915GAV Motherboard

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I have a D915GAV/D915PGN mother board and am having problems installing a PCI-E video card. This is the second card I have tried and each time the PC won't start up with the new card. I am currently trying a ASUS EAH5670. When I power up the PC the there is no sound coming from the hard drive and no signal to the monitor. Any suggestions?

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  • vmb1 Aug 23, 2010

    Thanks Cindy. I do have power, the power supply and CPU fan start however there are no beeps nor the sound of the hard drive starting. Yes I have set the BIOS to use PCI/E though I haven't put a cover on the motherboard VGA port. What does the cover do?

  • vmb1 Aug 23, 2010

    further to my previous reply, I have recently installed a 500W power supply. I have tried both the PCI-E graphics options of Auto and PCI-E GFX.

  • vmb1 Aug 23, 2010

    The power supply is a Silverstone ST50F-ES

  • vmb1 Aug 24, 2010

    Hi Cindy, thanks for your assistance. I have solved the problem by disabling the Link stability Algorithm and Pattern Test in the BIOS under PCI Express Configuration.

  • vmb1 Aug 24, 2010

    yes, Cindy was very helpful.



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Since you don't report a beep code or the sound of the fan and hard drive, the power supply seems the most likely issue. First I'd check if your power supply is capable of handling the load and handling the load properly. A number of multiple rail PSU do not evenly distribute the power and the video card and the CPU/motherboard are on the same rail. Use a voltmeter or a power supply tester to check the various cable outputs. (I know this video card uses less power than some but you still need to have the power supply handle it. What is the mean power the unit can supply and how much power do your components need?)

Did you tell the BIOS to use PCI/E card and put a cover on the motherboard video port?

Did you get the card fully seated (if it isn't properly seated, it can short the board)? In a few cases, I've seen a motherboard with problems with the slots (causing a short or non-functional board) out of the factory which means that the only solution is to RMA the board if it is under warranty.

I hope this helps.

Cindy Wells

Posted on Aug 23, 2010

  • 2 more comments 
  • Cindy Wells Aug 23, 2010

    The cover primarily keeps you from accidently connecting to the inactive port. However, it may also block some stray electrical noise from the motherboard. (Some boards are more sensitive to the need for shielding.)

    I'd still double check if you have sufficient power to all your components. What power supply do you have? What power do you need? How many rails and how are they balanced? Since your video card doesn't use a separate power connection, you need sufficient power on the first rail for everything on the motherboard. lets you check the expected power you will need for your components. (There are other power supply calculators.)

    If the power supply is good, it's probably an issue with the PCI/e slot. Then it's RMA time for the motherboard.

    Cindy Wells

  • Cindy Wells Aug 23, 2010

    Silverstone ST50F-ES should have enough power to boot the board and the video card unless it is malfunctioning. Do check the power coming through the motherboard connection and the EPS/ATX cables. The combined +12V should max out at 34A and 408W. The 3.3V and 5V together max at 120W with the +3.3V giving 24A and the +5Vrated for 20A.

    It is frustrating but without testing or swapping the power supply, it's still not clear if the problem is the slot or the power supply not meeting its spec output.

    Cindy Wells
    (I've helped clients with power supply issues and had a bad power supply new out of the box. Fortunately, that was a situation where visiting the box store was an option for the RMA. The same is true of bad slots on the motherboard.)

  • Cindy Wells Aug 23, 2010

    Another thing to check is the rest of your cables. The power supply and data cables for all the other components in the box. (Sometimes, you can jostle a cable or three loose as you reach into the box.)

    Cindy Wells
    (I haven't had this happen when installing a new component. However, I have pulled ribbon cables off the motherboard when trying to re-route the cables.)

  • Cindy Wells Aug 24, 2010

    You're welcome. I'm glad you found the problem despite it being a non-obvious part of the configuration in the BIOS.

    Cindy Wells



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