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ASUS 5770 CuCore @ stock only?

Discussion in 'AMD / ATI' started by Divide Overflow, Feb 22, 2010.

  1. Divide Overflow

    Divide Overflow

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    I just bought and installed an EAH5770 CuCore yesterday but am seeing some strange behavior when I try to overclock even the tiniest bit. I have two LCD displays, the main on DVI and a secondary on the VGA connector. Things are stable and beautiful at stock settings running Win7 64 and Cat 10.2. Whenever I attempt to adjust the core or memory clocks by any amount (up or down) however, I see graphics corruption in my secondary display.

    I used to enjoy the same setup with a HD4870 and had no problems with a moderate overclock. I'm wondering if I just happened to get a dud 5770 or if there's something else going on. I used both the Catalyst control center and ASUS SmartDoc to overclock and even tried bumping the vcore up a touch without success. Anything other than default GPU or video memory clock rates immediate produces problems.

    I wouldn't have thought anything odd if this happened above a minor overclock ceiling but when it happens even with a tiny underclock, I get suspicious. I've reinstalled the official Cat 10.2 a few times now. Any suggestions or should I just RMA?
  2. W1zzard

    W1zzard Administrator Staff Member

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    i'd say bios bug. no problem with 1 display on either port?
    check with asus support
  3. Divide Overflow

    Divide Overflow

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    No problems with either port when only using one monitor and overclocking.

    I just tried swapping the primary and secondary monitor in Cat control center. The glitch always shows up on the secondary monitor, so it's not the port, cable or monitor itself. I've messages off to ASUS support. Hope they can help!

    EDIT:
    No response from ASUS tech support after several days. :(
    The card started generating artifacts even at stock speeds so I had to return it. :( :(
    I decided to throw down and now have a Sapphire HD 5870 Vapor-X due to be delivered in a few hours. :) :) :)
    Last edited: Feb 24, 2010

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