I have been building a computer and I want to know whether I'm ok to connect the monitor and put in the disk and start it. It looks messy to me. None of the wires are touch ing any fan blades but I am still unsure as to whether it is safe to start up.
Hard to tell with that pic. As long as they don't get in the fans, they'll be fine, but they might just block a little airflow, should be negligible to your temperature though.
With extra power supply leads, I stick them between the top of the PSU and the top of the case if there's room, else above my optical drive at the top of the case.
I have another problem, I have installed everything on the motherboard and it took me a long time to get it like this, but now I realise the opening where the ports of the motherboard protrudes out of the back of the case is not covered with the metal cover that came with it. I can't seem to get it in from outside. Does this mean I have to painstakingly remove the motherboard again and put the cover in, or am I just doing something wrong putting the cover on?
i've read this and your other post in the general hardware forum and the absolute best advice i can give you is to find a friend that has had some experience installing a machine that can help you in person
if your backplate (the metal plate where all the outputs stick out of your machine) is in incorectly then it is best to take out the mobo and do it correctly
the cover generally goes in from the inside, if you decide to leave it off you run a greater risk of bending some of those outputs and possibly more dust in the machine, its generally a good idea to put it on correctly.
Pretty sure it has RAM but it's hard to make out in the pic. We'd see 2 yellow slots and 2 black slots if he had no RAM in it and it looks like 1 yellow and 3 black in the pic, so I think the RAM is just too dark to make out.
Yes. Take your time. The computer isn't going anywhere. Did you follow a build guide? If not, look at the sticky in GenHard and make sure you've done everything in each step.