Let’s Talk about building a custom computer

General, Let's Talk, Technology / Monday, January 28th, 2019

PC Building Mistakes

When building your PC as fast as you can  (to start using), can cause you to make mistakes with your build. Whether your upgrading or change components, sometimes you will find yourself scratching your head about why the build you’ve spent hours completing doesn’t work. While it does panic you, it doesn’t mean your build is broken. Fortunately, this guide will give you the reasons why your PC isn’t work as expected. I will also be giving you some more reasons on things that will affect your PC after the build. Fetch your tools and your manuals and let’s get fixing those faulty PCs.

Rushing Your Build

Before going into the post, I want to stress the importance of taking your time with your PC build. I rushed my build because I wanted to get on it and that lead to plenty of mistakes and errors being made. As I was not experiences with PC building and didn’t know how it all worked, it wasted a lot of time I could have spent enjoying my newly build PC. So before you start building your computer make sure you are:

  1. Prepared with the right tools and equipment.
  2. Understand how your build fits together.
  3. Read any material you get with your motherboard/ case.
  4. If you need an extra person for help, make sure they are free when you build your PC.
  5. Make sure you check your warranty and register all your parts (some are included out the box) before building your PC incase something bad happens.

Why It Won’t Boot

Incompatible Components

As many already know, using incompatible components will lead to parts not fitting or working at all. It is very important to check compatibility of your products to make sure when you put all of them together they can function properly. There are plenty of websites available to make sure you can select the correct parts. An example of a website is PC Part Picker, which is a fantastic website for building computers. They have a large array of users sharing their builds and parts to choose from. It also tells you any compatibility issues the build may have or cancels out some choices that aren’t compatible at all. I used this website for my personal build and it came in handy when deciding on which motherboard and storage device to go for. The build I went with is as follows:

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU AMD – Ryzen 7 2700X 3.7 GHz 8-Core Processor £289.93 @ Aria PC
CPU Cooler Cooler Master – MasterLiquid ML240L RGB 66.7 CFM Liquid CPU Cooler £62.98 @ Amazon UK
Motherboard Asus – ROG STRIX B450-F GAMING ATX AM4 Motherboard £115.94 @ AWD-IT
Memory Corsair – Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory £113.99 @ Amazon UK
Storage Samsung – 970 Evo 250 GB M.2-2280 Solid State Drive £69.56 @ Laptops Direct
Storage Seagate – Barracuda 2 TB 3.5″ 7200RPM Internal Hard Drive £54.99 @ Amazon UK
Video Card EVGA – GeForce GTX 1070 8 GB SC GAMING ACX 3.0 Black Edition Video Card £395.00 @ Amazon UK
Case NZXT – H700 (Black/Blue) ATX Mid Tower Case £132.41 @ CCL Computers
Power Supply EVGA – SuperNOVA G3 650 W 80+ Gold Certified Fully-Modular ATX Power Supply
Operating System Microsoft – Windows 10 Home OEM 64-bit £94.98 @ Aria PC
Prices include shipping, taxes, rebates, and discounts
Total £1329.78
Generated by PCPartPicker 2019-01-28 19:28 GMT+0000


While this build may seem pretty decent now, it won’t be so good in years to come. By all means you can use this build for your own use but do understand that prices and components get better over time, so make sure you still select relevant components. Otherwise, if you have any criticisms or advice on making this build better, please feel free to say so in the comments. Overall, I felt this build gave me a great base build and provided a good balance of graphics and performance for under £1,500 UK pounds. It also meant I had enough money to get accessories afterwards (modded cables, etc).

Try Plugging It In…

Monitor switched on? Hopefully it is! Although, if your PC is powered on and you’re not getting something on your screen, you probably need to turn your check on. If it’s already on,try plugging your HDMI in your graphics card slot. I mean it, seriously. Some people, especially those who are new, might not realise not all CPUs come with integrated graphics. Besides, you should have a GPU in your build it you’re planning on gaming or doing anything graphic intensive. Don’t use your motherboard HDMI, use your graphics card HDMI!

Tangled Cabling

Wiring can get so messy when building a PC. So messy, we sometimes forget about cables here and there. Alternatively, some of us will forget to connect certain cables or so the idiot move of plugging in the wrong cables. Although, don’t worry, this will not damage your build (it didn’t break mine), just make sure you check your cables and plug them in the right places. As idiotic I may sound, I have forgotten to plug in certain cables and plugged then into the wrong cables. I admit it, I wasn’t paying much attention when…

Make Sure They Are Plugged In Right

On the subject of forgetting or plugging things in correctly, this can be the same with our components. RAM Sticks, GPUs, HDDs and other storage devices alike can easily be incorrectly plugged in. Previously, I misread the diagram and put the RAM in the wrong slot configuration and ended up plugging them one step wrong. Don’t be an idiot if forget to plug these standard motherboard and storage components.

Plus Connectors In the Right Way

Ensuring your PC build connectors and RGB headers are plugging in correctly will make sure the lights work as expected when you boot your PC up for the first time. I had made this error because I kept having to move things around when building my PC. It didn’t break my RGB but it ended up showing up as a different colour to the rest, which made it a pain to change as I had to remove the case panels just to plug them back in, wasting effort and time. Don’t waste your time and make sure to plug things in correctly.

The Unfortunate Times

Unfortunately, sometimes components can break or be faulty. The fault may even mean you can’t start-up your brand new build. However, some checks can help you decide if your components work properly. Tests such as the motherboard test can make sure it powers up. Although, don’t worry if it doesn’t work as most components come with warranty if you register it once you’ve got the part. This way if anything goes wrong with your components during the building process you are covered.

Things not to forget

Thermal Paste

Be sure to apply thermal paste before attaching your cooler. Forgetting to do this will most likely lead to your CPU running at almost 70 degrees celsius out the box. The cpu might be alright at that temperature, it will cut its life and may lead to it throttling, leading to worse performance. Don’t let your PC build struggle because of forgetting to put thermal paste on. Alternatively, don’t forget to attach your cooler, whether it is the stock of third-party AIO/ cooler you chose for your build.

RGB – Better Performance Right?

People have this joke about RGB improving performance, so I thought I’d go along, haha… Although, it isn’t a necessity but having RGB in your build makes it so much better. It will add light to your build and help it’s stylish components stand out. It doesn’t matter if you only get one RGB part or several, it will still allow you to appreciate your favourite colour or compliment your build. In my case, I like the colour blue so focused my build on that colour. Although, while I don’t have much RGB at the moment, I am still planning on expanding my build in the future to support more RGB excellence. As the colour will be a blue theme and with being a fan of Fallout. A custom Nuka-Cola Quantum theme PC would be an amazing concept in the future (in my opinion/ eyes).

Correct Tools

When building your computer make sure you have the correct tools. Something, such as a Phillips screwdriver set will make sure you have flexibility for tightening your components and will make sure your prepare for PC building. Alternatively, having something like a metal bowl for screws,  extra thermal pasts and some pliers incase things need to be bent into place. However most build won’t need you to use pliers, so these are just incase things get stuck or need bending because it won’t fit in your PC build.

*Windows XP Start Theme*

Hurray your build works! Whether this guide helped you or not, hopefully it has given you some things to look for when building a computer in the future. While I did get help with my own build, I still made plenty of mistakes for my first time getting involved with building a PC. Luckily, everything work after looking around for the potential fault. However, with every build comes with something to look out for. If you enjoyed this post, check out some of our other stuff. The Dynamic Double blog has all the latest content from experiences, reviews, updates and more.

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