hey everyone welcome back to another mining chamber video in today's video we are going to
be building an eight rx 5700 xc gpu mining rig we got this gpu a while back and we had them sitting
on the table for a while so we're finally building this rig now and just as our usual mining rig
build videos we are first going to talk about the parts and then we are going to show a time lapse
of the build and then we will cover notes that are important to the build that we did so if you
have any questions they're most likely going to be answered on that part and then after that we
are going to set it up and start mining on it and then discuss the profitability as well as how much
watts and how much hash rates will this mining rig give us so now first thing let's go ahead and jump
into the parts for this mining rig so the first thing is the gpu which we are using the gigabyte
rx 5700 xt model we are going to be bios modding it following the tutorial that we made before
so we will get to that later on in the video and then for the motherboard we are using an asus p250
mining expert paired with an intel celeron g3 900 and an 8 gigabyte ram stick and then
as for storage we are using a 120 gigabyte ssd which we will be installing windows 10
on and this time we will try using a different mining software and that's not phoenix miner but
instead we will be doing something different and then after that we have our power supplies which
we are using two rmx 850 watts psus i really do like these power supplies they come with a
fair amount of vga cables that you can power up a good amount of cards with although later on we do
have difficulties trying to power up these eight cards with these power supplies so we will also
cover that after the build time lapse and then we also got splitters and risers from nerdgears.com
they are really kind enough to send us a box full of splitters and risers and we are really
appreciative of that and i recommend you guys to check out nerdgears.com they recently put
out the rtx 3000 series on their website as well as they completely remodeled their website with a
new design and then there's the new splitters on there as well they have two different type
of splitters the new ones are the braided ones which are really really good quality splitters so
i highly recommend you to check them out if you're looking for splitters their prices are really fair
and they also have a really good amount of gpus that you can buy and thank you again nerd gears
for sending us the box full of splitters and risers and then now finally in this build we are
going to be using a veda frame a gpu beta frame that we had a while ago the frame does look a
little bit worn out but it's okay and surprisingly we won't be using any rgb fans that we usually do
so this time it will just be the gpus without any extra fans now that we covered all the parts
as for the prices you guys will be able to find all these prices in our website miningchamber.com
there will be a full write-up on the bottom of the gpu overview article where it shows
all the builds that we did with this gpu so we first made a six gpu build with the rx 5700 xt
and then this will be our second build with this gpu so you guys can check it there and
you'll find all the links and the prices as well as the profitability and the break-even time we
will be getting back to that later on after we build this mining rig and test it out and see
the hashtag that we get out of it so now let's go ahead and run the time lapse for this build
alright guys i hope you have enjoyed the time lapse now let's talk about the important notes
regarding this mining rig build the first thing is if you guys noticed in the time lapse we were
going to use one vga cable for two gpus but then we ended up changing it to a cpu adapter instead
since we realized plugging two cards to one cable is not going to be a good idea and then we asked
the round as well and we got an advice to use a cpu to gpu adapter which is basically just like
your normal splitters except that you will be plugging into it as cpu eight pin and then in
return you get a dual 8 pin for a gpu so we ended up using two of these to power two different cards
and then we had the other six cards running on the vga cables from the power supplies
and since we have eight risers we used two regular splitters to power up two risers through one cable
and one gpu so like that in total we had four cables that are powering the gpu and its riser
and then we had two cables that are powering a gpu and two risers as well and then for our second
note we did bios mod all of these gpus we used the tutorial that we released a while ago to bios mod
all the gigabyte cards but just remember when you have a gigabyte or a rock strix card you will need
to use a specific bios image that's unlocked which will be pinned in the comment sections of our bios
modding video and we will also leave the link for that video in the descriptions below and i want
to say thank you crypto peasant from red panda mining discord for giving us that information to
put on the comment section after bias modding all the cards we ended up getting a little bit extra
mega hash so now every card is working around 54 to 55 mega hash and then later on after we
set up the operating system we will jump into the temperatures and how we overclock the cards
so that will be it as of the side notes for now if you have any questions or anything that we
didn't cover on the side notes please let us know in the comments below now let's go on and move on
to setting up the operating system so initially my plan was to run it on windows 10 and use the
different mining software but it seems like it was a lot of troubles running eight cars on windows 10
and trying to get them to mine without crashing so instead i ended up installing hive os on the ssd
and then i plugged that back into the rig after getting hype os all set up and getting all the
overclock setup everything has been running smoothly for about 6 hours so far and the rig
has been working pretty well there are some more room for optimizations for the overclocks i can
still reduce more power usage but as of now i'm going to keep it that way until i have time to
mess around with it a little bit so usually the temperatures of the gpus go above 90 degrees if i
leave the fan speed below 60 percent so i ended up keeping the fan speed at 80 at all times to
keep the memory temperature below 90 degrees with these cards it's fine you can keep it running at
95 degrees and below but it's always better to keep them cooler so i would recommend pumping
your fan up if you do have really bad temperatures and as for our overclocks we are using a 1300 core
770 under volt and as well as 850 on the memory voltage and 900 on the memory frequency contrary
to windows and hive os for these cards you would need to put half the value that you would put in
windows so in windows you would do 1800 but here i did 900 instead and other than that
everything has been running smoothly like i mentioned and now let's go ahead
and look at the power usage as well as the return on investment on this mining rig
so for power monitoring we are using the smart plugs on the wall so we have the two
psus connected to two different smart plugs the first psu is drawing around 660 watts and that
is powering four different cards as well as the system and then the second psu is drawing around
650 watts and it's powering just four cards so now we can just round it up around 1300 watts 1350
and like i mentioned there are more optimizations that can be done to drop the watts slower
now let's go ahead and go to the sheet that's on our website and then we can look at the prices
there as well as the expected time to break even so we can go ahead and look here the prices of the
items that we use for this mining rig costed us around three thousand and two hundred and twenty
three dollars so that is through the deals that we were able to get as well as the free stuff that we
were able to get as well but if you would buy this off the shelf you will get it around 4376. we were
pretty lucky on the gpus we got them for a really decent price on newegg we did buy it a while ago
and we were able to get it around 475 canadian because they were all refurbished so converting
that to usd it will come around 340 dollars so if you do want to calculate this total with tax just
make sure you multiply your tax percentage with the total and then just add the difference so now
let's go ahead and take a look at the break even and the performance of this rig so if we slide
here to the right we will see here that we have the performance so as for the performance we are
able to get 435 mega hash from this rig and then the total wattage will be around 1300 so we've put
these numbers in the whatsomine.com calculator and we were able to get these results so for
your monthly return you will be making around 412 dollars without electricity cost and then
for electricity costs we're using point 10 cents per kilowatt hour so that would cost around 93.60
a month which means our monthly profit after subtracting the electricity cost will be around
320 and just remember all these numbers are based on december 5 2020 so these numbers do change very
frequently and if you do want the updated results if you watch this video one month from now or
three months from now you just need to click on the view updated returns and then it will take you
exactly to the calculator with all the values filled in so now the next thing we can look at
now is the return on investment for the price that we were able to get it for we are going
to be able to break even in 10 months using the 0.10 cents per kilowatt hour electricity cost and
then if i don't have to pay any electricity cost the break even will be around 8 months
and now if you look at if you bought it brand new you will probably break even in around 14 months
if you have that electricity cost and if you don't have to pay any electricity cost it will be around
10 months and a half so as of performance and return on investment that will be it and just
a reminder if you guys want to buy any of these parts you will find all the links on the right
side we will also leave all these links in the descriptions below so that will be it for this
video if you guys have any questions or feedback please let us know in the comment sections below
and if you enjoyed it please leave a thumbs up and also don't forget there will be a wallet on
the screen that you can recover on coinomi to get the money out of it as part of our giveaway
and then there will be one more wallet in the next video we hope you guys have a wonderful day
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