Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 728. (Read 3839391 times)

I've modded some Elpida 280x before but I can't find them. If you search this forum, a few months ago someone made some optimized bioses for 380x and he posted the memory straps for the Elpida's. They are somewhere there.

Thanks for sharing . Plz share info for Elpida memory 280xs as it appier. Ive got some of them.

Simply put, do what you can, use a BIOS mod, MSI AB or Wattman to drop GPU voltage as low as it'll go and remain stable. I find for mining Eth and ZCash I can drop GPU core voltage as low as 0.88v and still remain stable with 1125/2150 clock speeds. This gives 29.7mh/s in Eth and around 46~52 h/s for ZCash

For anyone with Radeon 7950 / 7970 / 280X who wants more juice out of ZEC mining you can adjust your timings.

Mine went from 43 Sol/s --->  52 Sol/s. Running at 1100 / 1575

THIS IS ONLY FOR HYNIX MEMORY H5GQ2H24MFR . I will post Elpida and Samsung memory types later.

can you share some details please?

It's not completely irrelevant. But you absolutely CANNOT accurately use GPUz power draw to compare different cards because they all have different power characteristics. It's only good for doing apples to apples comparisons.

For example, mining Ethereum, I have RX480s that say 70~75w in  GPUz but this relates to more like 120w from the wall. So a 50w difference.

But my 290x, say around 130w in GPUz, but 200w from the wall, that's a 70w difference.

Basically, you have almost no way of telling actual power draw from the wall with GPUz, it's just a guessing game. And power draw from the wall is what actually counts.

And why do you need 2 x 850w PSU to power 6 x RX480? Even mining Ethereum at 180mh/s my 6 x RX480 only pull 810w, from the wall. You certainly don't need it for ZCash, I'm not even pulling 600w from the wall.

Not necessarily, but I'd have thought 470 should pull a little less. It all depends on the voltage you supply the GPU.

I'm not trying to fool anyone! Just sharing my results and settings like so many others have done, ok?

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F0 49 02 01 77 71 33 20 00 00 00 00 CE C5 88 3B 80 55 10 11 2B A3 18 06 00 4E 26 01 22 11 9D 00 6C 0E 14 20 6A 89 80 AA 00 00 01 20 12 0F 2A 2D 3C 24 2C 15

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Really 600w for 6 480s, thats crazy.....Would 470s be slightly lower?

Honestly, for ZEC I don't know.

It took long hours of testing to reach this settings. They also work well for ETH.

It's not completely irrelevant. But you absolutely CANNOT accurately use GPUz power draw to compare different cards because they all have different power characteristics. It's only good for doing apples to apples comparisons.

For example, mining Ethereum, I have RX480s that say 70~75w in  GPUz but this relates to more like 120w from the wall. So a 50w difference.

But my 290x, say around 130w in GPUz, but 200w from the wall, that's a 70w difference.

Basically, you have almost no way of telling actual power draw from the wall with GPUz, it's just a guessing game. And power draw from the wall is what actually counts.

And why do you need 2 x 850w PSU to power 6 x RX480? Even mining Ethereum at 180mh/s my 6 x RX480 only pull 810w, from the wall. You certainly don't need it for ZCash, I'm not even pulling 600w from the wall.

Even so, If I'm getting 35 sols drawing 40w and someone else is getting 50 sols drawing 100w how can that be irrelevant?

You do the math  

PS: I pay for my electric bill!