Darkasantion
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- Jan 29, 2010
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Did a little searching on the voltage the memory on the HD5870 uses, to find "potential" headroom for overclocking, as the voltage might be lowered to safe power, but by raising it again you might create room for overclocking
.
Anyway, found out that the memory is made by Samsung, rated for 5000Mhz, and then needs 1.5Vmem. Also the room on the memory to play around with the voltages, without going beyond specifitations is ~0.045V.
Specifactions are found here:Spec sheet
You need to look at this specific part: K4G10325FE-HC04
Why am I making this topic then? Well it's specified for 1.5V at 5000Mhz, yet according to RBE it "only" needs 1.15V(0.35V less!) to do 4800Mhz....
I also did have a quick look at the ATI Overvolt tool for the HD5970, to check/confirm the memory readings and settings there with the RBE read outs, which should be right as AMD themselfs did release it (the tool is not provided anymore, and was removed by AMD's request). And these numbers do match, so the memory is really running on 1.15V
So how come the memory can actually do 4800Mhz+ with 0.35V less than specified? Wrong read out, or cherry picked memory....? Last one would be cool, as this would mean that the memory has the potential to be raised from 1.15V towards 1.5V safely for higher clocks..... and we all want that don't we

Anyway, found out that the memory is made by Samsung, rated for 5000Mhz, and then needs 1.5Vmem. Also the room on the memory to play around with the voltages, without going beyond specifitations is ~0.045V.
Specifactions are found here:Spec sheet
You need to look at this specific part: K4G10325FE-HC04
Why am I making this topic then? Well it's specified for 1.5V at 5000Mhz, yet according to RBE it "only" needs 1.15V(0.35V less!) to do 4800Mhz....
I also did have a quick look at the ATI Overvolt tool for the HD5970, to check/confirm the memory readings and settings there with the RBE read outs, which should be right as AMD themselfs did release it (the tool is not provided anymore, and was removed by AMD's request). And these numbers do match, so the memory is really running on 1.15V
So how come the memory can actually do 4800Mhz+ with 0.35V less than specified? Wrong read out, or cherry picked memory....? Last one would be cool, as this would mean that the memory has the potential to be raised from 1.15V towards 1.5V safely for higher clocks..... and we all want that don't we
