Some time ago i have made a post about how my winter will be hot again due to my rig. You can read it here
Zcash made loads of new people start mining and building rigs. Yet while browsing forums and seeing questions on chats i have noticed some things are still not clear or can be tweaked.
This is not a guide on how to build a rig. Here im sharing details that you could miss on your current setup and that will let you mine more and cheaper.
Speaking shortly i want you to make more money than you do right now :)
Choose right GPU
There mainly just 2 GPUs - AMD and Nvidia. Go for AMD. Now while choosing AMD you will see same modes coming straight from Shapphire and from others like XFX Gigabyte MSI. Always try to go for Shapphire originals and never go for MSI.
You dont want to know how many cards i had to burn to get this knowledge.
Drivers
For 280-290 cards go with 15.12 drivers. For newer cards go with the newest driver and their new thinge called Radeon Chill.
System
While i know many people love linux.. Windows is king for mining. Thats because the best miners are made and updated the fastest on windows. Running them is also very easy - mostly click and play. Currently Claymore makes best miners and up to yesterday there was no ZEC linux version of this at all. Go for Windows.
Make rig at least 5 GPUs
You spent money on parts and now you want to mine with 3-4 cards? Doesnt make sense. Add at least one or two cards.
Windows 7 it will see just 4 cards. Here is a driver that lets you have as many cards as you wish on the system. DOWNLOAD
Windows 10 sees all GPUs right away but uses a little more of resources so its better to run Win7.
Use USB risers
Risers are things connecting your computer with the GPU. Currently technology went ahead and its better to use USB ones. They are more efficient and stabile.
Cooldown old GPUs
This trick i was tough by 
Once a year unscrew 4 screws from GPU, clean this rectangle of old paste and put new thermal paste on it.
Above you can see my AMD 280x and the old paste on it.
Edit virtual memory
Windows had odd virtual memory and while running few cards on your rig you have to edit it to 16gb.
Just go to: Computer Properties -> Advanced System Settings -> Performance -> Advanced -> Virtual Memory
Hope this helped and you got more sols/hashes now!
