Diagnosing Computing devices Faults

When your PC goes wrong and also you have lost all hope the standard final stage is to reformat your pc and start afresh. This will in all probability resolve any software issues, remove viruses or any other nasties and provide you with a clean start. But what happens for those who have already reformatted and the issue still exists?

This means, probably, you have a hardware problem. This is where problems can begin.

Diagnosing a computer hardware fault could be a right pain as any from the computer components could the trigger. Unless you are intending to change the entire machine you have to carefully diagnose with what elements the fault lies with.

I would advise you consider the computer into these main places to analyse.

Memory / MEMORY

Power Supply

Hard Disk


This is not a complete definitive list, obviously depending on your concern ie if your issue is you don’t get sound then it is actually a sound card issue, similarly if you do not get a display then graphics may be the culprit. If it is a arbitrary fault then either of the above may be the cause.

Memory – this is fortunately really simple to diagnose. Search the Internet for any memory tester. Generally these can be place onto a CD (or Floppy if you’re stuck in the past!! ), boot up in the CD which then enters the actual memory test. This will continuously cycle through, testing the storage for errors. It is a good idea to leave this on for hrs or even better over evening. It will advise you when the memory fails.

Power Supply – this is often a strange one. People generally assume when the power supply does fail then you definitely would get no life from you computer whatsoever. This sometimes is not accurate. I have had computers that switch off at random times, computers which have the power light on, but do not start upward etc and it has ended up being the supply – I might advise this should be among the first things to test as could be a problematic area. Testing it could be difficult without the right gear. Really the only way is to obtain a volt tester and check the voltage and current being released.

Hard Disk – this can be among the worst problems to have as though your hard disk does fall short, unless you have been practical and done regular backups of the most valuable data, you stand to get rid of it all. Hard disks can go anytime and usually you will listen to a harsh sounding clicking noise that’s coming from your computer. If this is actually the case you need to probably replace the hard disk drive. Get someone who then understands what they are doing here to recover your old data for you personally.

If none of the above solves your problem then you may possibly be looking at the fault being using the motherboard or any other connect in cards or devices you’ve. Remove everything to leave only the basics. Take out all sound cards etc and every other PCI devices that are not really essential. If you have more compared to one stick of ram after that leave in only one if the problem resolves.

Really, solving hardware issues comes right down to a case of learning from mistakes here so take time to test everything out. Bear in your mind that even if your computer keyboard or mouse is faulty, very strange things sometimes happens to a computer, so if you’re able to, try to remove and test each and every item.