hey everyone and welcome back to another mining chamber video in today's video we
are going to be using more than one GPU to mine on our main pc so you can use this when
you're trying to game and mine at the same time you can have one GPU mining full time
and then the other one is off for whatever else you want to use it for we will also go over some
bias options that you might have to change and everything you need to know about drivers and
setup within your main pc so now let's go ahead and get into the video right after the intro
now before we start this video let's first talk about part one which i've released before this
video and in part one we talked about how to effectively mine with your main pc and then we
went over certain settings that you want to change in your windows setup as well as a couple of
things that you need to keep in mind when you're mining and then we went over two different mining
software as well as a mining operating system so now we're not going to be getting into details
with these in this video so just letting you guys know if you want any clarification you can go to
that video so if you haven't watched part one yet i would highly suggest going to part one first and
then coming and finishing part two so now let's get to it in this video i'm going to be using an
rx 580 beside of my main gpu on my pc which is an rx 5700 so will be two amd gpus connected to the
same pc now there are a couple of configurations that you might have differently which you might
have an amd card an nvidia card or two nvidia cards or even more cards than just two so it's
all up to you you can apply this same concept to more than two cards but it might be different when
it comes to nvidia and amd being mixed together so i will be talking about that when we get to
the section of installing your drivers now before we get to the driver's part let's first talk about
how you will be connecting more than one gpu to your motherboard so there are multiple different
ways that you can use here and the most common way is just inserting your gpu within your case into a
different slot now when it comes to slots on your motherboard you want to rank them with the largest
slots so you first need to use your primary slots which are the long ones and you'll use those in
order so the first long slot is your primary slot and then the second one will be the second biggest
slot so you won't need to use the small ones unless you finished your larger ones first now to
connect the larger ones you can simply plug into it your gpu and then just mount that gpu properly
although if you do end up putting it inside of your pc itself and then you have your pc case
covered then just remember that the heat can be a problem if you try to enclose them in a case so
it's best if you try to open up your case or leave the side panel open or just have an open frame
case as well which are pretty good for example for my main pc i'm using a thermaltake core p3 which
is an open frame case and it's really nice you can simply swap out any gpu you want and add any gpu
you'd like so now the method that i'm going to be using for connecting my gpu will be through
a riser so you can buy these risers on amazon or you can go to the stores that i have the links for
on miningchamber.com some of them will have some risers on there so you can just browse through
them and find whichever one you want to buy from now these risers are basically an extension for
your motherboard so you can just plug in the 1x pcie express slot and then from there you can
leave your gpu wherever is saved now in this video i don't put my gpu in that much of a safe
spot but please make sure you put the gpu in a safe spot when the fans spin you can see some
movement on the gpu so just make sure that you mount it somewhere safe and it doesn't fall over
or break the fans now two things you want to keep in mind when it comes to connecting multiple gpus
is first that you want to get rid of your sli and crossfires so you won't be using either sli from
nvidia or crossfire from amd because that will put your hash rate lower and the second thing you
want to keep in mind is your power so you want to make sure that your power supply has enough power
to supply whatever additional gpus you're trying to power and since you're most likely going to be
also gaming or doing any other productive work on your pc you want to make sure that you have
a capable enough psu to power all your gpus now generally with two gpus that don't consume too
much power like we have here the rx 5700 and the rx 580 you can go ahead and use a 750 watt
that's not a problem but if you're trying to run a gpu like an rtx 3080 or a 3090 or a radeon 7
then i highly suggest getting at least a thousand watt power supply to stay on the safe side
now when it comes to power supplies as well you want to make sure you have enough cables to power
the gpus so now in this case i have my thermaltake rgb 750 watts and i do have extra cables so i was
able to plug in another vga cable to power up another gpu now when you power up your other gpu
you also want to power the riser that comes with it and that riser takes one sixth pin and if you
don't have enough cables to power your riser as well and your gpu then you can try to use a molex
to power your riser but it's not the safe option i would highly suggest getting splitters and those
splitters will just give you an additional port to plug into it the riser so if you have a cable that
has two x8 pins you can go ahead and plug into it a splitter and then from there you can power
the riser and the two eight pins on the gpu itself you can also try to find splitters in the stores
i mentioned on the website as well now there are also the ribbon pc extensions that plug into the
large ports and these also transfer power so you can use these as well and directly connect it to
your gpu all the links for everything will be in the descriptions below and now that wraps it
up for the physical part of this section so now let's talk about the different configurations
amd and video now one thing that you need to do for either of the combinations of gpu
is that you need to change a couple of bio settings so the main settings that you want to
make sure is enabled is mining mode or 4g decoding so if you have 4g decoding or mining mode in your
bios settings then make sure that you set that as enabled usually it will be in the advanced tab so
just browse through your bios and try to find them and if you don't find either of those settings and
you have a really old motherboard then you might not be able to run two gpus but you can still give
it a try so you don't need to stress it at all and even if you have a newer motherboard
and you don't have those settings you can still continue throughout the video you might not run
into any issues at all now there are a couple of other settings that you can change if you do run
into issues of your motherboard not detecting your gpu and that is your pcie link speeds so you can
just jump in on there and change them to gen 2 and try that and then you can also try gen 3. so just
mess around with those settings until it works for you now as for the different combinations of gpus
if you do amd and video at the same time it can be such a headache when you're running it in windows
10 because windows 10 just does not cope well with having multiple different gpu drivers on
there but again you can still give it a try my recommendations would be using the hiveos method
that we discussed in part one that will be much easier to run with both gpus you don't have to
install any drivers it's automatic right away but if you're still insistent on using windows 10 then
the first thing you want to do is you want to make sure the primary gpu has its drivers installed and
then plug in your secondary gpu and install its drivers so if your primary gpu is amd and you have
your drivers already then you're set plug in your second gpu install your nvidia drivers you might
experience a lot of crashes in a lot of blue screens so just be careful on that end and now
as of having the same vendors for the gpus such as amd and amd or nvidia and nvidia you don't have to
do anything extra just plug in your secondary gpu and run through it without any issues but let's
say if you have a 1060 on your main pc and you're plugging in an rtx 3000 series then you're most
likely going to need to install the latest drivers you can also try to run it without installing the
new drivers it might also work without any issues after a restart so give that a try and mess around
with it until you get the driver sorted out if you end up running into driver issues especially on
the amd side you can try to use ddu to uninstall your drivers now ddu is something very useful to
use it helps you uninstall your drivers and it does it in a way that it cleans it fully off of
the system so to use zdu all you need to do is boot into safe mode and then once you boot into
safe mode you can go ahead and run ddu and proceed with uninstalling your drivers and if you don't
know how to boot into safe mode you can easily look it up and they will give you the instructions
for that so now after i have the two gpus plugged into the computer the first thing you want to do
is you want to go to your device manager so once you go ahead and open up your device manager go
under your display adapters and in there just make sure that both of the cards that you have
plugged in are showing so here i have the rx 5700 as well as the rx 580. now that i confirmed that
it's working on this side i can go ahead and open up msi afterburner and then here as well i can see
if i click on this gpu icon right here i can see that i have both of my gpus showing here so that
means i can just overclock them individually but now since we are on an amd system i will be using
wattman instead which comes with the amd drivers so if i go to wattman and go to performance and
then tuning you guys will see here you have two options for two gpus so the amd rx 5700 is gpu
number one and then the 580 is gpu number two so as usual before you start mining you want to
first apply your overclocks now from part one i've already saved my overclocks into a profile for my
5700 so all i need to do is just go to here and do load profile and then load my mining profile
so if you guys did not catch that part then please go to part one and then you'll find
the information for that there as for my second gpu it's my first time plugging it into this
computer so i can't load the profile for it so i'm going to apply the mining overclocks that you can
find on miningchamber.com and then after i apply those overclocks i can go ahead and start mining
all right so now that my overclocks are applied for mining for both of the cards I can go ahead
and start mining so now as we did in the first part we've used Kryptex miner and the phoenix
miner so in this part we're also going to be using Kryptex and phoenix you guys can feel free
to use any miner you like there won't be any issue with that so in Kryptex it's very straightforward
to turn off one GPU and turn on the other all you have to do is just click on those
green switches and then you can turn off their respective GPU so now I'm just going to give it
some time until they kick in and then after they kick in I will go ahead and turn off one of them
so now after cryptex kicked in you guys can see here i'll be making almost 300 a month and now
it does show a little bit lower for my rx 5700 and that is due to me screen recording and displaying
on two monitors which is completely fine so now in cryptex if i want to turn off my primary gpu
i would just go ahead and hit the switch and then now it will be off so now it will just
take some time to recalculate and then after it finishes recalculating the rx 580 will only be on
and then the 5700 will be off so here you can see the rx 580 is the only one that's
mining and i'm going to be making almost a hundred dollars a month rather than almost 300 a month
the bright side of this is i can have this gpu mine 24 7 and i don't need to worry about it at
all and then i can just do whatever i want on the system so now let's go ahead and turn off cryptex
miner and let me show you guys how to do this in phoenix miner now in phoenix miner all you need
to do is you can go ahead to the config file that we made previously and then in the config
file you guys can make some changes here so now continuing off where we left off from the part one
here we have the overclock settings for the 5700 and now we have two gpus so to add your
overclocks for the second gpu all i need to do is just add a comma and then add the numbers for it
so for the core voltage as well i can just do a comma 850 and then for the memory clock i can do
comma and 2 150. so what that would do is apply these overclocks for each gpu prospectively and
the first gpu will get the first number and the second gpu gets the second number and it keeps
going on so for the fan speed i can leave it at 60 which will apply to both cards and now after
i run this it will apply my settings for both of the cards but now since we're planning on mining
with just one card by adding this command right here gpus2 we're only going to put overclocks for
one of the cards but if you're planning on mining with more cards so for example if i have a third
card plugged in i would say comma 3 and then i can go ahead and add the overclocks of the third card
after the first one and to find the right index number for your gpu you can go ahead and try
this so first i'm going to comment out my overclock so putting a hashtag behind all
this line means it will skip the line and then i'm going to do that to the gpus as well and then i'm
going to save the file and now i am going to go ahead and run my phoenix miner as an administrator
so you guys can see here i have gpu one is my rx 5700 and my gpu number two is the rx 580.
so if I close the phoenix miner and then I go ahead and skip GPU one and just say I want to
mine with GPU number two and then I can apply my overclocks here as well after that I can save my
file and then I can run phoenix miner again so after I run phoenix miner again you guys
can see here that it's only using the RX 580. so now if you go to your metrics in your amd watman
you can see here that my gpu one is being used at 29 it's jumping a little bit around because
I'm recording the screen but then you can see here gpu number two is at a hundred percent so the gpu
number two is being used for mining and the gpu one is free to use so what that means is you can
go ahead and play any games you want and then you will be set without any issues you can shut down
your monitor while it's mining you can keep it up overnight you can do whatever you like and you'll
just be making money from your secondary gpu so that will be it for the video guys I hope it was
helpful and I hope you guys learned something new now if you have any questions please feel
free to leave them in the comments below and if you enjoyed the video make sure to hit the thumbs
up and if you're new here hit the subscribe button we have a couple of gpu overview videos
coming up very soon so till then I will catch you guys next time.I hope you have a wonderful day