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Linus tech tips is over 10 years old now so it's easy for us to forget that many

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viewers may be encountering the world of pc building for the first time and while

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there's lots of great pc building tutorials out there there are also some

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that verge on misinformation so in this

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video we are going back to basics with

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episode 2 of how to basics

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installing a CPU

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ugh

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the hex gears impulse mechanical keyboard comes with RGB lighting and

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ip56 water resistance so in the event

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that you do spill on your keyboard you shouldn't even need to interrupt your

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game check it out at the link below so let's start then from the very beginning

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it's a good place to start what do you install the CPU into

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the CPU socket where's the socket on the motherboard where's the motherboard well

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here's where we get to step one on top of a non-metal non-conductive surface

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like the box that it came in now if you don't have the motherboard you're going

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to want to go back a few steps and pick one of those up first that's pretty

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important now there are two main types of CPU sockets that you should probably

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know about in 2019 and actually for years to come

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lga style sockets and pga style sockets

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Intel primarily uses land grid array or

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lgas meaning that the socket itself is

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made up of a grid of pins so these touch gold-plated flat contacts

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or pads on the bottom of the CPU and

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that is what allows your pc to run all of your spreadsheet simulators

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AMD on the other hand uses more commonly

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a pin grid array or pga configuration

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that means that the pins are on the CPU instead of on the socket so pga sockets

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are simply a grid of holes that the CPU drops into with no force required now

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this makes it much safer to handle the motherboard without worrying about

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damaging the pins which can be pretty much the end of your CPU installation

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endeavor but it also means that you have to be extra careful with the CPU Intel

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actually originally used pgas but they

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switched to lga around 2002

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presumably because processors are generally more expensive than

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motherboards and if you're gonna accidentally bend or break a pin you

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want your new paperweight to be as cheap as possible with that said it's not

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impossible to repair socket pins it's

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just extremely difficult and extremely

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easy to cause even further damage to other pins while you try to fix the one

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that's bent so your best bet is to send

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it to an experienced technician if you run into this no pressure

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but anyway you aren't just concerned with the type of socket but also the

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number of pins so Intel's main consumer socket lga 1151 has

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1151 pins while their 2066 socket which

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is geared more towards enthusiasts has 2066 pins

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on the AMD side am4 has 1 331 so if AMD

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was using the same naming scheme as Intel it would be pga 1331 i guess and

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then their tr4 socket which is actually an lga well that one has 4094 pins which

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is where things get pretty confusing because sometimes AMD does use lgas

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now some of these sockets have been around for a few years and may continue

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to be used by Intel and AMD so something you need to note is that

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just because a CPU physically fits into

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a particular socket does not necessarily mean it will be compatible

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and this was a lesson that riley who prepared this episode learned all too

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well in our cheapest amazon pc video now

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sockets are different from chipsets a specific configuration of hardware and

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software that allows the processor memory and the peripherals in a system

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to communicate with each other processors often launch alongside

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compatible chipsets but sometimes they'll be forwards or backwards

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compatible with the next or previous generation the thing though is this

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might require a BIOS update in order to work so you will need to consult your

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motherboard manufacturer's website in order to know 100 for sure which cpus

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work and which motherboards and if a BIOS update is required

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okay so now that we've done our homework we know our processor is compatible with

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our motherboard it's time to drop that sucker in except don't actually drop it

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because as i said the pins regardless of what they're attached to are extremely

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fragile and susceptible to damage now these following steps apply broadly

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to both of Intel sockets and to AMD's am4 socket while tr4 AMD's enthusiast

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socket for Threadripper does do things a little bit differently before you

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begin you're going to want to grab an anti-static wrist strap that's connected

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to a ground or you're going to want to keep your feet stationary and touch a

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metal part of your case or power supply with your power supply plugged into the

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wall to discharge any static buildup on your body now if you're upgrading your

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CPU on an existing system the first thing you're going to need to do is

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unplug your CPU's cooler so find where the fan cable plugs into the header on

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the motherboard and just pull it off

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for Intel systems it's pretty common to see these tool-less plastic pins

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installed around the socket simply rotate them in the direction indicated

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pop them open and pull the CPU cooler off

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on the AMD side of things you should find a little lever like this on one

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side of the processor socket pull it up and the latches on either

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side of your CPU should loosen so you can pull them off the little hooks on

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the side and remove the cooler be careful though it's not uncommon for the

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CPU to get pulled off with the heatsink

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exposing its fragile pins it's not a huge problem as long as you don't bend

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anything though if you're doing a new installation rather than upgrading

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though Intel lga sockets will have a socket cover in place

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leave this where it is as it will come off by itself when you lock in the CPU

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instead lift up the retention ARM or arms on the side of the socket this will

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allow you to lift up the socket lid next hold your processor being careful

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to only touch the edges if you touch the contacts on the bottom not only can this

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interfere with electrical contact but it can actually cause corrosion over the

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long term next look for an arrow in one

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corner of the CPU this will line up with a similar marking

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on one of the corners of the socket

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there may also by the way be notches on the sides of the CPU these should line

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up with tiny nubbins in the side of the socket if you're not a hundred percent

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sure about your arrows once you've determined the correct

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orientation lower the CPU into the socket gently there's no need to push or

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apply any force though i do recommend giving it a tiny

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wiggle just to make sure that it's seated properly

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and to let it know that you still love it no matter what

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next lower the socket lid over the CPU

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making sure that it fits back under the screw or bracket that held it in

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originally then push the retention ARM down and under the hook so it stays into

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place if you've got two arms they'll be designed so that one goes down first and

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then the other just like this

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now that process is pretty similar for most consumer boards and cpus for the

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last 10 almost 20 years

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but AMD's tr4 socket that one's a little more involved your threadripper CPU will

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actually come with the torx screwdriver

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that you need to install it first loosen the three screws holding down the socket

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lid it'll say which order to loosen them in so don't just unscrew them all

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willy-nilly once you've got them loosened those screws will stay inside

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the socket lid which will pop up on its own because it's spring-loaded so that's

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pretty fun under the lid you will find another lid

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which has a plastic tray inside lift this lid up holding it by the sides then

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slide the plastic tray upward and then put it away to the side

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next is the actual socket cover which protects the pins we're just going to

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leave that there for the moment now threadripper cpus come pre-installed

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into an orange plastic housing do not

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try to remove it it is supposed to be there holding it by the tab on one side

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slide the CPU into the rails in that

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second lid with the bottom facing the socket until it kind of clicks into

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place then you can remove the socket cover

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from the actual pins by pinching the grab points in the middle and then lower

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the second lid containing the CPU now onto the socket

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gently push and it will secure itself into place at which point you can then

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lower the first lid and start screwing the screws back into place

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now that torx screwdriver that's included is designed specifically for

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these screws so once they're threaded in a little you can tighten them in the

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order that's specified on the socket lid until the tool clicks and that's it your

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CPU is installed but it won't last very long without a CPU

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cooler now if you have a third-party cooler that's probably going to come

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with its own instructions detailing how exactly to mount it if it has no

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pre-applied thermal paste you're going to need to add your own to the top of

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the CPU before installing just remember guys that when it comes to

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thermal paste less is more you only need to fill the small imperfections between

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the CPU and the heatsink there's no

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mystical pentagram of thermal paste required to

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summon the pc gamer gods that's only going to end up with a whole bunch of

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thermal compound all over your motherboard which probably won't damage

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it but it'll be really messy to clean up gamer's nexus's modmat actually has a

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great guide for how to apply thermal compound to most modern cpus so consumer

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chips just the small ones a simple line down the middle is perfect for Intel

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enthusiast cpus four smaller dots in each corner will do your wonders and for

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Threadripper you want to make an x with four dots in between the lines to help

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fill in the gaps the thing is that the larger the actual CPU die

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under the heat spreader on top is the more thermal compound you need to make

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sure that you get full coverage because any dye area that doesn't have thermal

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compound is going to result in hot spots on your CPU which at the very least can

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limit your overclocking potential now mainline processors usually come with a

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cooler while enthusiast ones sometimes do not

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now many coolers come with pre-installed thermal paste on the bottom in which

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case there's no need for extra if you do

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have a stock cooler simply line up the four mounting pins with the four holes

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on the motherboard socket if you're reusing it by the way you will need to

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reset those pins back to their original location and then push down on the

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opposing sets of pins until they click into place

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as for AMD it's the same process in reverse from removal where we simply

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hook the side of the cooler without the latch first

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then the latch side and close the ARM

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now it can sometimes take a little bit of force but if you feel like you're

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overdoing it then you should probably check the bottom side and make sure that

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nothing's interfering after your cooler is secured you can

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connect your fan plug into the closest 4-pin header on your motherboard which

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will usually be clearly labeled CPU fan

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now that we've got our CPU installed we could just say

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ah that's great let's call it a day but we won't because we're professional

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technicians it's good practice to make sure that your CPU is actually seated

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correctly and just because the system boots doesn't mean that it is so you're

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going to want to go into your motherboard's BIOS which is normally

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accessed by pressing delete or f2 when you first power on your system to make

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sure that all of your RAM sticks show up

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it is very common especially on Threadripper cpus for some of the pins to not

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make perfect contact which can cause one or more of your memory slots not to

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function correctly if you do run into this it's okay probably nothing is

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damaged just go ahead and take it out reinstall it and try again

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and then that's really it your CPU is installed the brain of your system some

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might call it treat it well my friends

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treat it well normally these sponsor spots are pretty

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for watching guys if this video sucked you know what to do but if it was

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awesome share it with a friend get subscribed hit that like button or check

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out the link to where to buy the stuff we featured in the video description

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maybe we could put a couple good CPU motherboard recommendations down there

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also linked in the description is our merch store which has cool shirts like this one and our community forum which

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you should totally join if you have any more questions any deeper questions that

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is a great place to go for your diy pc

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needs