**This guide assumes you can build a working nheqminer on your system already**

By default, `nheqminer` is configured to build with `XENONCAT` CPU solvers for AVX/AVX2 CPU instruction sets.

If you try to run it on a VPS or other machine which does not have AVX/AVX2 instruction sets on the CPU, **it will result in 0 sols/s hashing speed but report no error while running.**

You may see something like the following:

```
[01:01:55][0x00007fe305412740] Using SSE2: YES
[01:01:55][0x00007fe305412740] Using AVX: NO
[01:01:55][0x00007fe305412740] Using AVX2: NO
[23:50:38][0x00007f4fe6871700] miner#2 | Starting thread #2 (cpu_tromp_STUB)
[23:50:38][0x00007f4fe7873700] miner#0 | Starting thread #0 (cpu_tromp_STUB)
...
[23:51:02][0x00007f4fe9111740] Speed [15 sec]: 0 I/s, 0 Sols/s
...
```


***You need to enable TROMP CPU solver to use regular SSE2 instructions which most VPS should have***

To fix this is simple.  First grab `nheqminer` from one of the up-to-date forks:

* `git clone https://github.com/aayanl/nheqminer`

follow the instructions on the github page to get it installed up until the `cmake ../nheqminer` part. (***do not run `cmake ../nheqminer` yet.***)

* https://github.com/aayanl/nheqminer#general-instructions (**skip CUDA installation**)

if you are in the build directory, cd into the `nheqminer` directory

* `cd ../nheqminer`

edit `CMakeLists.txt`

* `nano CMakeLists.txt`

Change the following options like so (set them all to OFF apart from `CPU_TROMP`):

![cmake.png](https://steemitimages.com/DQmTPkmZY6SY5kjytXPVC4MQ1N7aBDTRocjVzjebE5AAdMh/cmake.png)

Close and save the file

* `ctrl + x` then `y` then `enter`

Now build the program.

* `cd ../build`
* `cmake ../nheqminer`
* `make -j $(nproc)`

If all is well, the program should compile and you should have a working `nheqminer`

Test that the `TROMP` CPU solver is working by invoking the command:

* `./nheqminer -b 30 -t X` *where X is the number of CPUs you want to test on*

It should now benchmark the speed using `CPU-TROMP-SSE2`.  Once finished and confirmed it is working you can go ahead and set it to mine properly on a pool.

*Please note that CPU hashrates are very slow compared to GPU, and without AVX/AVX2 XENONCAT acceleration, the hashrate will be even slower, but this should solve the 0 sols/s issue experienced by various people using non-AVX VPS instances.*

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