Nice tutorials, thank you! I want to ask you about exactly battery. Where is it better to order it/ I mean, if i order it online? I live in Europe and know some stores of hardware, such as hardware.nu and so on but also i know such stores as Amazon and eBay also Aliexpress..Tell me where is quaity is the best?

Thank you for these tutorials! Tell me please, do these advices appropriate for all types of power supplies? The fact is that i have this model http://hardware.nl/power-supply/dell/dc4... and all efforts to replace it ware failed! Tell me please, what it can be the trouble! I will be very thankful for yr recommendations!

It is very useful article! Thank you very mych! I have never thought that power supply can be so dusty. I have bought new computer and there is this kind of power supply http://pc24.de/servers/dell/poweredge/k2... and I can;t undertand how to get to it to clean. It is important because i think in some time it will be very dirty. Can you advise me anything?

Hello! Nice article! But I have a question. Recently I have installed this povervoltage system http://hardware.eu/overvoltage-protectio... to protect my house devices from power surges and spikes. But I am worry it is not enough for my desktop computer. Can you tell me please do I need to buy UPS in addition to overvoltage system?

hello! Very interesting article. As for me Dell power supplies are quite good and there are a lot of very powerful model. For example I have this one http://pc24.de/power-supply/dell/3mydw.h... I am a kind of gamer and this power supply provides high energy so I just enjoy playing!

Thank you for this article! I helped me a lot! I have bought this model of toner http://hardware.nl/printkop/brother/ph11... but when I tried to replace it I failed. Now I did it and my printer work like a new one. Thank you one more time!