There is a link to a guide in the very first post of this thread: https://bitcointalk.org/index.php?topic=1954245.0
Basically you just save your current BIOS, open it with a program that can read it, put tighter timings into appropriate fields, save the edited BIOS, and then flash it back to your card. A gazillion of guides out there including the one linked above.
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Thank u so much..  😇