Re: TK025 Dual Graphics Riser for T7400 in Dell Precision 690 ?
If your video card is keyed to accept that connector you MAY be okay, but dell's 8 pin plug runs comm, 3.3vdc and 12vdc. Check the pinout on your card against the t7400's p5 and p19 connectors. I had to make a custom harness for my setup, but it was because the riser card needed the 3.3vdc connection. Your card may run a standard configuration just be sure the input from your psu is pushing the correct power to each of your pins.
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