any thoughts on these builds

[dDejan]

Hey mining brothers, i am new one here ( bet you hear this a lot those days) take a look at my builds and place any idea what you think.. some of the parts are arrived and some f the parts will be here in max 5 days.. and not totally noob

RIG n1

motherboard:      biostar TB250-BTC+  https://www.amazon.com/BIOSTAR-TB250-BTC-SUPPORT-LGA1151-Intel/dp/B07481N9LW   this one

CPU:                   intel  Celeron G3930 2.9 GHz  

RAM:                  2x   Kingston HyperX FURY  4GB 2400MHz DDR4

PSU:                   2x    EVGA SuperNOVA 850 P2, 80+ PLATINUM 850W   with dual psu cable off course

GPU:                  6X    ASUS ROG-STRIX-GTX1080 TI

Power riser ver 007  with 4 capacitor   x6  

Kingston  120GB  SSD

RIG n2

on this RIG same parts but different gpu

GPU                    8x  GIGABYTE Radeon RX 580   8GB   only this vendor available that i have found  

HAPPY MINING!!!!!!

[BTC22]

You will need 2133 RAM with that processor. 2400 won't work.

[MATHReX]

You won't need 8 GB of RAM, 4GB will do just fine.
Get some more risers as risers will be the only issue 90% of the time, so keeping some in spare will save you a lot of time.

[Undefined31415]

You will need 2133 RAM with that processor. 2400 won't work.

Memory capable of higher frequencies is fine. It will simply be bottlenecked to whatever the CPU/motherboard is capable of supporting.

[dDejan]

You will need 2133 RAM with that processor. 2400 won't work.

Memory capable of higher frequencies is fine. It will simply be bottlenecked to whatever the CPU/motherboard is capable of supporting.

ok so i dont need to change memory? is 2400MHz max and can be underclock to 2133?  it is ok i can still change my memory if it is not proper one.

[Vann]

As listed on the motherboard specifications:

http://www.biostar-usa.com/app/en-us/mb/introduction.php?S_ID=884#specification

* DDR4 2400 for 7th Generation Intel® Core™ Processor Family

You need to use 2100 MHz if using a Celeron/Pentium processor, preferably one listed on the motherboard QVL or change the CPU to a 7th gen i3-i7 that supports 2400 MHz memory.

[flip4flop]

Always have a couple extra risers on hand.  They are usually they are the first thing you should try and swap out if you have a problem with the rig.  Other than that and what others have said it looks good.