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Hello and thank you for looking at this post. I'd like to ask questions purtaining to the XFX HD-577X-ZNFC Radeon HD 5770 1GB card and heres my story... I purchased one of these off E-Bay it had the Hynix memory an would only do a overclock of 905/1225 thru CCC 10.9 drivers... Which was not very good. After 2wks it stared artifacting needless to say I did an RMA. I received a XFX HD-577X-ZNFC Radeon HD 5770 1GB but this time I noticed that the memory was SAMSUNG.. I researched everywhere an could not find any info on this change the old one says XFX HD-577X-ZNFC Ver A.0 . The New one says XFX HD-577X-ZNFC VC.3 . This is where things get interesting When I went to overclock this it maxed out CCC at 950/1435 but glitched on COD MW2 :/ I backed down to 950/1350 Perfect stability thru Furmark, MSI Kombuster, All the Unigine Benchmarks, 3DMark06 ...Since then I redid the Thermal paste on it to Artic Silver 5 & have noticed lower temps
at load an gaming..
I want to unlock the Bios.... How & is it even a possibility ?
I do believe this has Voltage control as GPU-Z Shows VDDC 1.0000V
& VDDC Current % OCP
Also with GPU-Z i Saved my Original Bios Bin just in case :/
But When I load up Afterburner it shows Voltage @ 1125 ?
What is My True Voltage ?
DID THE
AfterBurner.cfg first rename it to
AfterBurner.txt to be able to edit it…..
Then u change "unofficial overclocking", "voltage control" and "voltage monitoring" all to 1 from 0
My goal is to hit 1000 /1440 if possible an stable at low temps hopefully

I want to unlock the Bios.... How & is it even a possibility ?
I do believe this has Voltage control as GPU-Z Shows VDDC 1.0000V
& VDDC Current % OCP
Also with GPU-Z i Saved my Original Bios Bin just in case :/
But When I load up Afterburner it shows Voltage @ 1125 ?
What is My True Voltage ?
DID THE
AfterBurner.cfg first rename it to
AfterBurner.txt to be able to edit it…..
Then u change "unofficial overclocking", "voltage control" and "voltage monitoring" all to 1 from 0
My goal is to hit 1000 /1440 if possible an stable at low temps hopefully