I have a corsair hx620w running an ati 4870 with an amd phenom ii 965 c3 revision and i am curious if the amp's on the 12v rail may be limiting my overclocks. (not that i think it will effect it but there is 3 hard drives a corsair h50 and 10 fans, 4 120mm and 6 80mm)
The spec of the amp's on the 12v rails are 18A across 3 rails so 54A total and it seams that if my cpu is underclocked my gpu can reach 850mhz core with 1100mhz memory but only about 815mhz core and 1000mhz memory with my cpu overclocked and again with my gpu underclocked my cpu can reach almost 4.2ghz stable but with my gpu overclocked i can only reach 3.9/4ghz.
With my max gpu overclock gpuz gives a vddc current around 60A under full load but i don't know how much relavance that has to the avalible ampers on the 12v rail.
Any ideas? i am looking to get a new gpu at the end of the year that will draw more power than a 4870 under load and even more so if i overvolt/clock so i would like to work this out before i buy a new high end card.
*edit* does anyone know what kinda of amp's a phenom 965 and 4870 draw at stock speed/voltage?
The spec of the amp's on the 12v rails are 18A across 3 rails so 54A total and it seams that if my cpu is underclocked my gpu can reach 850mhz core with 1100mhz memory but only about 815mhz core and 1000mhz memory with my cpu overclocked and again with my gpu underclocked my cpu can reach almost 4.2ghz stable but with my gpu overclocked i can only reach 3.9/4ghz.
With my max gpu overclock gpuz gives a vddc current around 60A under full load but i don't know how much relavance that has to the avalible ampers on the 12v rail.
Any ideas? i am looking to get a new gpu at the end of the year that will draw more power than a 4870 under load and even more so if i overvolt/clock so i would like to work this out before i buy a new high end card.
*edit* does anyone know what kinda of amp's a phenom 965 and 4870 draw at stock speed/voltage?