What is the hardest thing about building a computer?

[Legend8887]

Title.

[Balderick]

It has been mentioned a lot but working within the budget you have is the hardest part.
Many have mentioned read read read but this could be information overload and not prove relative to your first project so therefor a waste of time and effort.

Comparing minimum and recommended system requirements for games will give indication to what is a good or reasonable system capable of running latest game releases.

Many new mobo bundles (mobo, cpu, ram) will simply need assembling to give full dx11 compatability which means new system will run all the latest game releases.
A new disk drive/s and PSU will get you going but could always swap out these from existing build with the option to upgrade later on; depending on your budget.
It is more than reasonable to expect to pay more for what all the previous parts described listed cost for a good GPU which will max out your other investments.

Comparing minimum and recommended system requirements for games will give indication to what is a good or reasonable system capable of running latest game releases.

So the first port of call on a new build is looking at game specs then research/window shop for mobo/mobo bundle.

Once commited to investing in new mobo/mobo bundle the mobo manual will be your new bible. (not many posters here if any have mentioned how important their mobo manual is for working out the things they mention)

One way to get familiar with what is involved is to do some maintenace on the machine you have allready. Simply open case to get mobo make and model and go to vendors website to get all information required. You could:
1) Check for latest firmware; flashing firmware is part of maintaining a healthy and usable system getting you familirased with how to access firmware settings and what they do.
2)Download the manual; replacing your heatsink paste would show cooler running temps if temps are compared before and after doing this. Mobo manual will show proper assembly instruction.
3)Check for upgradability; there will be tables showing what cpu are compatable with your mobo same for RAM information and will give information regarding slot specs to workout which GPU's would be worth installing (all PCIE slots are backward compatible so a PCIE 3 GPU will work well on a PCIE 2 mobo but not to full potential)

Lastly but not least ALLWAYS make sure to follow safety guidelines. Electricity and electrical components can prove fatal.

It is amazing what is possible to achieve yourself at home and am sure once you have your first build it will not be the last.

[StonedYoda]

I'd say cable management, personally. That's the one thing I have trouble with, I guess everyone is different though!

[Tito Shivan]

引用自 Werezwolf：

Every single Heatsink that has those clips you need to press down on and you hear this crunch i shudder everytime.

I've seen that 'crunch' many times caused by clueless/careless users.
Imagine one of the first DDR RAM modules, completely 'inserted' on it's MOBO slot...

引用自 PvtBalderick：

It has been mentioned a lot but working within the budget you have is the hardest part.

There's also some people who have issues with the budget because they want to build a skycrapper with the budget of a car.
Sometimes, worst part of working with budget, is coming to terms that one can't really build his dream machine within that budget :(