Genoil zcash miner drivers#
Genoil zcash miner update#
Genoil zcash miner driver#
Genoil zcash miner software#
Genoil zcash miner windows#

The ability to over-volt the memory controller would make it easier to overclock the memory speed beyond 1625Mhz. Unlike the simple voltage modding the Hawaii BIOS, there is no easy way to modify the memory controller voltage (VDDCI) on Tonga. The memory controller on the GPU also needs to be able overclock from 1475Mhz. Hynix memory seems to overclock a bit better than Elpida, while Samsung memory, which seems rather rare on R9 380 cards, tends to overclock the best. Different cards may overclock better, depending on both the GPU asic and the memory. I then tried a number of ways to improve the timing beyond 1625Mhz, but I found nothing that was both stable and faster at 1700Mhz. That boosted my mining speed at 1625Mhz to slightly over 23Mh To get even faster timings, I copied the 1375Mhz timings from a MSI R9 380 with Elpida RAM to the Club3d 1625Mhz memory timing.

After flashing the updated BIOS, I overclocked the RAM to 1625Mhz, and my eth mining speed went from just under 21Mh to about 22.5Mh.

I used Atiflash 2.71 to flash the BIOS since I have found no DOS or Linux flash utilities for Tonga GPUs.

Genoil zcash miner update#

After the change, the BIOS checksum is invalid, so I simply loaded the BIOS in Tonga Bios Reader and re-saved it in order to update the checksum. To actually make the change I copied the 1500Mhz timing (starting with 77 71) to the 1625Mhz timing. So if the the card crashed on the 1625Mhz timing, it would be back to the safe 1500Mhz timing after a reboot. Since the default memory timing is 1475Mhz, my modified timing would only be used when overclocking the memory over 1500Mhz. To reduce the chance of bricking my card, the first time I modified only the 1625Mhz memory timing. Obviously one type of memory the BIOS supports is Elpida, and from comparing BIOS images from other cards, I determined that memory type 02 is for Hynix. This is so the same BIOS can be used on a card that can be made with different memory. The Club3D BIOS actually has 2 sets of timings, one for memory type 01 (the number after F0 49 02), as and for memory type 02 (not shown). The timing for up to 1625Mhz (C4 7A 02) comes after it, and then 1750Mhz (98 AB 02). I found it by searching for the string F0 49 02, which you first have to convert from little-endian to get 249F0, and then from hex to get 150,000, which is expressed in increments of. I've highlighted the 1500Mhz memory timing in the screen shot above. Here's an example based on the network hashrate (in thousands) at block 1072, for a rig mining 140 solutions/s:ĭaily ramped mining reward in blocks: 308 I was unable to find any zcash mining calculators, so I wrote a short python calculator. A version including silentarmy's kernel is in the works.

Genoil zcash miner windows#

Genoil has released a miner, but only Windows binaries with tromp's kernel at this time. Increasing the core clock on the R9 380 cards from 900Mhz to 1Ghz increased the performance by 3-4%. I experimented with the worksize and threads values in config.txt, but was unable to improve performance compared to the default 256/8192.

Genoil zcash miner drivers#

Under Ubuntu with fglrx drivers I get about 11 solutions/s for both R7 370 and R9 380 cards.

Genoil zcash miner driver#

On Windows running driver version 16.10.1 I get about 26 solutions/s with a Rx 470.

I get the best performance with the silentarmy kernel, but with only one instance as running 2 instances results in a crash.

Genoil zcash miner software#

Windows and Linux binaries can be downloaded from coinsforall.io, the pool the software is designed for. I have been using eXtremal's miner version 0.2.2, which uses OpenCL kernels from the zcash open-source miner competition. Miners using the 'z' address have apparently had problems receiving their zcash payouts from mining pools. A bug in the zcash network software has meant problems with private transfers, so it is recommended for miners to use only transparent wallet addresses until the bug is fixed. Zcash has both private address starting with 'z', and public or transparent address starting with 't'. Despite the low mining reward rate, mining pool problems, and buggy mining software, I was able to earn 0.005 ZEC in one day with a couple rigs. Even after 24 hours, 1 ZEC is trading for about 6 BTC, or US$4300. However the first hour of trading on Poloniex saw zcash (ZEC) trading at insane values of over 1000 bitcoin per ZEC. I did not expect zcash mining to be immediately profitable, since mining rewards are being ramped up over the first month. Zcash promises private transactions, so that they cannot be viewed on the public blockchain like bitcoin or ethereum. Zcash is the hottest coin this month, after going live on October 28th, following several of months of testing.