ASUS EN 7800GT Dual - Need Help, SLI problems

DCKCDCKC
edited July 2006 in Hardware
Can anybody help;

I have an ASUS EN7800GT Dual, but cannot Enable SLI

Used Various Drivers, from ASUS supplied to Latest Nvidia

Mobo is A8N-SLI Premium, Tried Re-Install, Newer Nforce Drivers, Latest BIOS

Card Only Detected as One GPU

Only One HS appears warm

Tried In Both PCIe, currently in Second

Bench Marks Confirm Single GPU Scores

Tried All GPU options In BIOS, AUTO, Single, Dual GFX (Currently Set)

Adjusted Peg Link to fastest

Driver does not indicate Dual GPU, ASUS AI does not allow you to Enable SLI

O/S is XP Pro SP2

No other Hardware Installed, except Creative Audigy 2 ZS

Used Internal PSU and External PSU

Main DVI Connector Used

Any Ideas most welcome...........

Comments

  • jradminjradmin North Kackalaki
    edited July 2006
    Do you have the EZ Plug on the mobo (Its the 4 pin molex just above the top most PCIE slot) plugged into a power molex from your PSU?

    If thats not plugged in, then it's wont let you enable SLI if theres not enough amprage across the cards.
  • RyderRyder Kalamazoo, Mi Icrontian
    edited July 2006
    DCKC wrote:
    Only One HS appears warm
    That is not a good sign.

    Have you tried the Asus Support forums? Any mention of how to tell if the card is bad?
  • DCKCDCKC
    edited July 2006
    RyderOCZ wrote:
    That is not a good sign.

    Have you tried the Asus Support forums? Any mention of how to tell if the card is bad?

    Personally, I dont think ASUS are very interested, have requested help, but to no Avail.:mean:

    SLI Power connector is in Use

    However, We have fixed the problem if it helps anyone in future;

    ASUS, new BETA BIOS's, possibly anything above V:1.9, and the card is not detected as two GPU's. However Asus's new Flash utility, inc DOS version does not allow downgrade, you must use an older Flash Utility to do so.

    Downgrade to 1.9 and is detected correctly.

    Second problem, card would not complete 3D Mark Tests, causing a reboot. Updated Drivers made no improvement.

    Solution, bin the external Power Brick, as we noticed that on a Reset, the Card did not reset, showing no BIOS screen etc, although resuming display at raid BIOS. Using Normal 6 Pin SLi connector, card resets properly, fan spinning up as expected and No more crashes and reboots.

    I think I'll inform ASUS of the solution as they can't be bothered to investigate and provide anyone with one themselves.

    Hope this helps, and thanks for your suggestions.:thumbsup:
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