# Grin Mining Hardware **URL:** \ **Category:** Mining\ **Created:** [January 7, 2019, 11:17am UTC](https://forum.grin.mw/t/grin-mining-hardware/1816 "2019-01-07T11:17:44Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![puttabong](https://avatars.discourse-cdn.com/v4/letter/p/e0b2c6/32.png) [@puttabong](https://forum.grin.mw/u/puttabong)\ **Post date:** [January 7, 2019, 11:17am UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/1 "2019-01-07T11:17:44Z")
Hi everyone. Excited about the Grin launch! Haven’t been mining anything since 2013 so it would be a fun hobby to start mining GRIN on January 15th. What are everyone’s hardware recommendations for Grin mining? Would you like to share the specs of your rigs? [https://grinhardware.com](https://grinhardware.com) Happy mining, hope you have a great one ---
**Author:** ![sandwich](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@sandwich](https://forum.grin.mw/u/sandwich)\ **Post date:** [January 7, 2019, 12:20pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/2 "2019-01-07T12:20:13Z")
CPU Core i3-8100 or any 4-core CPU, 4-8 gigs of RAM GTX 1080 TI is the best choice right now grin is the only coin that requires CPU+GPU for mining others just use GPU ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [January 7, 2019, 1:23pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/3 "2019-01-07T13:23:27Z")
I will happily accept PRs that do cycle finding as efficiently on the GPU side… ---
**Author:** ![sandwich](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@sandwich](https://forum.grin.mw/u/sandwich)\ **Post date:** [January 7, 2019, 1:26pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/4 "2019-01-07T13:26:30Z")
ah ok maybe someone smart can figure out how to offload to GPU. As of now, mega farms are out because they are usually running 8 gpus on celeren cpus ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [January 7, 2019, 1:43pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/5 "2019-01-07T13:43:26Z")
They can also increase ntrims, the number of trimming rounds, to vastly reduce the cpu workload… ---
**Author:** ![robbie](https://avatars.discourse-cdn.com/v4/letter/r/2acd7d/32.png) [@robbie](https://forum.grin.mw/u/robbie)\ **Post date:** [January 8, 2019, 1:59pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/6 "2019-01-08T13:59:02Z")
Is it true we need a 4core cpu as a minimum or a dual core can do the job{have Intel cpu g4400 @3,3ghz.will it work with C31 or need to buy other cpu? Thanks… Getting everything ready for testing ---
**Author:** ![robbie](https://avatars.discourse-cdn.com/v4/letter/r/2acd7d/32.png) [@robbie](https://forum.grin.mw/u/robbie)\ **Post date:** [January 8, 2019, 2:11pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/7 "2019-01-08T14:11:01Z")
Do I need to change my cpu if I want to mine C31 with 1080tis? I have a dual core Intel @3,3ghz. ---
**Author:** ![robbie](https://avatars.discourse-cdn.com/v4/letter/r/2acd7d/32.png) [@robbie](https://forum.grin.mw/u/robbie)\ **Post date:** [January 8, 2019, 2:14pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/8 "2019-01-08T14:14:14Z")
Please help me. Thanks ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [January 8, 2019, 4:11pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/9 "2019-01-08T16:11:52Z")
Your CPU should be able to support a couple of GPUs. Why don’t you try it on floonet? ---
**Author:** ![sandwich](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@sandwich](https://forum.grin.mw/u/sandwich)\ **Post date:** [January 8, 2019, 5:31pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/10 "2019-01-08T17:31:29Z")
so celeron g3900 seems to be fine with up to 3 1080TI or 4 1080/1070 on a windows miner. After that is starts to throttle at 100% CPU load. If you’re running just one GPU any CPU will work. Linux miner has a config to reduce CPU usage even further ---
**Author:** ![robbie](https://avatars.discourse-cdn.com/v4/letter/r/2acd7d/32.png) [@robbie](https://forum.grin.mw/u/robbie)\ **Post date:** [January 8, 2019, 5:42pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/11 "2019-01-08T17:42:47Z")
I have 12 x 1080ti. So to run all and not have 100% cpu usage have to buy a cpu with more cores, right? The maximum for Intel 1151 socket is 8core,so a 6 or 8 will do for 12 gpus? Thank you very much for the response everybody ---
**Author:** ![robbie](https://avatars.discourse-cdn.com/v4/letter/r/2acd7d/32.png) [@robbie](https://forum.grin.mw/u/robbie)\ **Post date:** [January 8, 2019, 5:53pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/12 "2019-01-08T17:53:44Z")
On Linux, but do you want to reduce the cpu usage? Doesn’t it result in a reduce of Graphs/s as well? ---
**Author:** ![sandwich](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@sandwich](https://forum.grin.mw/u/sandwich)\ **Post date:** [January 8, 2019, 6:03pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/13 "2019-01-08T18:03:51Z")
my 6 1080TI and corei3-8100 get 65% CPU usage. I am not sure if it scales to 12 linearly. So you’re probably fine with just higher clock 4-core like core i5-7500 or core i7 7700 if youre paranoid enough The things is soon some professional cuda coder will figure out how to offload the CPU task to the GPU efficiently and then higher end CPU will be redundant. Tromp, such optimization is possible, isn’t it? ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [January 8, 2019, 8:08pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/14 "2019-01-08T20:08:34Z")
> [@sandwich](#): > > such optimization is possible, isn’t it? I expect so. And I hope to see some GPU cycle chasing code before long. The current hybrid solving method is admittedly somewhat ugly… ---
**Author:** ![UeliSteck](https://avatars.discourse-cdn.com/v4/letter/u/ea666f/32.png) [@UeliSteck](https://forum.grin.mw/u/UeliSteck)\ **Post date:** [February 4, 2019, 10:45pm UTC](https://forum.grin.mw/t/grin-mining-hardware/1816/15 "2019-02-04T22:45:14Z")
So from this thread, am I to assume that the OCTOMINER with its integrated Intel Celeron 3855u will bottleneck at the CPU if I try to mine grin with all the graphics card slots filled? > [@Mining Grin with OCTOMINER X9 PRO & Integrated Intel 3855u CPU](https://forum.grin.mw/t/mining-grin-with-octominer-x9-pro-integrated-intel-3855u-cpu/3832): > > I have seen references to low-end CPUs bottlenecking in grin. Do you guys think I’ll run into issues mining grin with an OCTOMINER X9 Pro with its integrated Intel Celeron 3855u CPU? (here’s a link to the original 8 card OCTOMINER, which is out of stock, although the 9 slot variant is available: [https://octominer.com/shop/octominer\_b8plus/](https://octominer.com/shop/octominer_b8plus/)) That 3855u has only 2 cores at 1.6 GHz. Are 8 or 9 graphics cards going to bottleneck this CPU when mining grin? What will be the difference for, say, a …