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Title: Grzzzzz /Squealing sound from a Gigabyte 5770 Post by: _Vince_ on February 08, 2012, 05:45:21 PM I have a quite strange 5770. When it runs it creates some a repeated grzzz/squealing sound.
-It is not the fan. I hold the fan still for a brief moment the sound still there -It is not the temperature, 50 or 60o the sound was still the same. -It CHANGES together with the core clock! If the clock is 150Mhz, I still can hear the sound but the interval is longer. At 900Mhz the sound frequency increase rapidly. But it is just the frequency of the sound changes; loudness is still the same. Do you have any idea what is that sound? How to fix it? Title: Re: Grzzzzz /Squealing sound from a Gigabyte 5770 Post by: deepceleron on February 08, 2012, 06:15:20 PM I have a quite strange 5770. When it runs it creates some a repeated grzzz/squealing sound. It might be the fan controller making the fan motor "sing" - unplug the fan from the circuit board and run the card, and see if massive silence ensues.-It is not the fan. I hold the fan still for a brief moment the sound still there -It is not the temperature, 50 or 60o the sound was still the same. -It CHANGES together with the core clock! If the clock is 150Mhz, I still can hear the sound but the interval is longer. At 900Mhz the sound frequency increase rapidly. But it is just the frequency of the sound changes; loudness is still the same. Do you have any idea what is that sound? How to fix it? Title: Re: Grzzzzz /Squealing sound from a Gigabyte 5770 Post by: rjk on February 08, 2012, 06:36:37 PM Sounds like you hear a PWM controller singing, and probably because of a bad choke or cap.
Title: Re: Grzzzzz /Squealing sound from a Gigabyte 5770 Post by: ssateneth on February 08, 2012, 11:04:52 PM youtube it! this is something i wanna hear
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