Topic: Is it possible to reduce MEMORY voltage for AMD GPUs? - page 2. (Read 7767 times)
Is that a 5870 PCB but it doesn't look "right" for a 5970? Still I am 99% sure regardless of where it physically is located all AMD card use a different bank of VRMs for memory voltage because they run at a different voltage.
So AMD graphic cards use seperate VRM for memory voltage. The 5970 for example runs at 1.05V core and 1.10V memory stock.
All this talk of undervolting got me thinking. 2GB of RAM uses some wattage. We are underclocking the memory 50% to 80% or more it likely can run stable at much lower voltage. None of the tools I have seen allows the voltage to be adjusted DOWNWARD.
XFX Black Edition has a tool which allows memory voltage to be increased independently of core by up to 15% so modification is physically possible. I guess XFX never though people would want to underclock the memory.
Any ideas? Has anyone tried?
All this talk of undervolting got me thinking. 2GB of RAM uses some wattage. We are underclocking the memory 50% to 80% or more it likely can run stable at much lower voltage. None of the tools I have seen allows the voltage to be adjusted DOWNWARD.
XFX Black Edition has a tool which allows memory voltage to be increased independently of core by up to 15% so modification is physically possible. I guess XFX never though people would want to underclock the memory.
Any ideas? Has anyone tried?
Good idea !
I am also wondering if this VRM on the left in this picture is the VRM in question and this is the one that is powering the memory modules in question on a reference 5870 :
For anyone that does not know that VRM supposedly is only used for the memory of the card and it is located between the leftmost memory chip and the capacitor on the left side !
So AMD graphic cards use seperate VRM for memory voltage. The 5970 for example runs at 1.05V core and 1.10V memory stock.
All this talk of undervolting got me thinking. 2GB of RAM uses some wattage. We are underclocking the memory 50% to 80% or more it likely can run stable at much lower voltage. None of the tools I have seen allows the voltage to be adjusted DOWNWARD.
XFX Black Edition has a tool which allows memory voltage to be increased independently of core by up to 15% so modification is physically possible. I guess XFX never though people would want to underclock the memory.
Any ideas? Has anyone tried?
All this talk of undervolting got me thinking. 2GB of RAM uses some wattage. We are underclocking the memory 50% to 80% or more it likely can run stable at much lower voltage. None of the tools I have seen allows the voltage to be adjusted DOWNWARD.
XFX Black Edition has a tool which allows memory voltage to be increased independently of core by up to 15% so modification is physically possible. I guess XFX never though people would want to underclock the memory.
Any ideas? Has anyone tried?
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