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1  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 28, 2017, 07:03:31 PM
Okay so the AMD mining driver seems to have made the biggest difference. now getting ~24.8Mh/s on each card.

I was reluctant to use it because i also play games when not mining, but the internet says game performance doesn't drop with it.

Thanks for the help all. Is there a thread here on how to overclock? I've never really looked into it, would i see much increase?
2  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 28, 2017, 01:26:25 PM
My GPUs have Samsung GDDR5 memory.
3  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 28, 2017, 02:32:46 AM

I remember changing my virtual memory to 16GB at some point, will check it now.

my bat file is as follows:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eu1.ethermine.org:14444 -ewal [WALLET ADDRESS] -epsw x

edit: i've just changed the virtual memory to 16GB. still getting 18Mh/s per card.


try to put -dcri 30 in your bat file and play with the dcri number from 30 down to lower numbers ,it might help

EthDcrMiner64.exe -epool eu1.ethermine.org:14444 -ewal [WALLET ADDRESS] -epsw x -dcri 30

do you mean the brand of my memory (RAM)?
It's Corsair Vengeance LPX 2400MHz DDR4
Its not your system memory , its the memory brand on your vga card that 8GB Smiley

Do you have a original bios on the cards ? or you flashed the bios ?
did you tried to switch the bios switch to the anoter position ? your cards have 2 different bioses Smiley


i have not altered with the bios of the cards.

setting -dcri to various values has not changed the hash rate.

will download gpu z tomorrow and get the memory brand of the gpu and report back
4  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 27, 2017, 09:09:13 PM
bit weird that i have 2 cards with the same issue though.

i actually started with about 25Mh/s but it's slowly dropping off if i remember correctly. do you think it's just wear and tear?

No wear and tear, I am mining with RX 480 Sapphire Nitro+ at 24.7 Mhsh standard hashrate and because my cards have Samsung memory without Bios mod but only setting memory to 2250 in MSI afterburner they mine at 27.9 Mhsh each. I believe you will have Micron or Elpida memory and if you don't know, download and install GPU-Z and it will show what kind of GDDR5 Memory your cards have (Samsung,Hynix,Micron or Elpida).

do you mean the brand of my memory (RAM)?

It's Corsair Vengeance LPX 2400MHz DDR4
5  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 27, 2017, 08:43:24 PM
bit weird that i have 2 cards with the same issue though.

i actually started with about 25Mh/s but it's slowly dropping off if i remember correctly. do you think it's just wear and tear?
6  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 27, 2017, 08:11:42 PM
Intel i5-7600
16GB RAM
2x MSI RX 480 8GB
EVGA 500B power supply

Do you need anything else?

I remember changing my virtual memory to 16GB at some point, will check it now.

my bat file is as follows:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eu1.ethermine.org:14444 -ewal [WALLET ADDRESS] -epsw x

edit: i've just changed the virtual memory to 16GB. still getting 18Mh/s per card.
7  Alternate cryptocurrencies / Mining (Altcoins) / Re: Low Hashrate on: December 27, 2017, 04:44:43 PM
using them bad? should i be getting a higher hash rate?

Okay so i just uninstalled my drivers and reinstalled the latest ones: 17.12.2

I have not modded my bios or overclocked the cards.
I am using Windows 10 64 bit.

Since reinstalling my drivers i am now seeing 18Mh/s per card, which is what I'm used to (normal for my system).

Does this seem right?
8  Alternate cryptocurrencies / Mining (Altcoins) / Low Hashrate on: December 27, 2017, 03:48:53 PM
Hi - wondering if anyone has any insight here.

I've been mining eth with 2 RX480s for months and i've been getting around 20Mh/s per card.

The hash rates on one of my cards has dropped to ~3Mh/s. I'm using Claymore v10.2 (was using an older version before i noticed this so just switched). What steps should i take to fault find please?

Many Thanks
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