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Thread: Fixing a Bad BIOS Flash on the 4870

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  1. 06-29-2008, 06:55 AM #11
    Mechromancer
    Mechromancer is offline
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    Quote Originally Posted by mascaras View Post
    HD4000 séries FAN FIX ( without flashing Bios ) >> http://www.xtremesystems.org/forums/...postcount=4045


    Very nice!

    I'm starting to have doubts as to the quality of this Qimonda GDDR5. Apparently the 8800GT had problems due to their memory as well. I've also read a bit about how GDDR5 works and its NOTHING like the previous generations of memory. It varies clockspeed, voltage, and other parameters automatically to resolve signaling issues. Screwing with the BIOS is probably messing with this function in some way.

    GDDR5 Articles:
    http://www.extremetech.com/article2/...2310000,00.asp
    http://www.eetasia.com/ART_880050357...P_74d933d1.HTM

    Read up on how "signal training" works for yourself and lets discuss it. I'm no memory expert so I won't pretend to know how it all works. It just seems like these BIOS mods are the culprit.
    Last edited by Mechromancer; 06-29-2008 at 06:58 AM.
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