What you've never understood about your computer is that it is scared to death of water, H2O, humidity or whatever you'd like to name it. & even though you do not see the water, actually there may be lots of excessive moist in the air killing your motherboard silently & slowly. No, your motherboard doesn't melt when in contact with water like the wicked witch of the west, but it dies of short circuit. Luckily, ASRock has a new High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity. Eu P / Er P, stands for Energy Using Product, was a provision regulated by European Union to define the power consumption for the completed system. According to Eu P / Er P, the total AC power of the completed system shall be under 1.00W in off mode condition. To meet Eu P / Er P standard, the Eu P / Er P ready motherboard & the Eu P / Er P ready power supply are required. (The Eu P / Er P ready power supply must meet the standard of 5v standby power efficiency is higher than 50% under 100 m A current consumption.). ASRock has overcome the technical obstacles & exclusively invented a new technology that means that you can turn on your PC & boot up to Windows® in 4 seconds! ASRock Instant Boot not only excels in the Boot Up speed (3~4 sec.), it also provides clean OS, & saves the most power energy. ASRock Instant Flash is an exclusive & the most user-friendly BIOS flash utility developed by ASRock. It is embedded in Flash ROM which is used to update the system BIOS without having to enter operating systems like MS-DOS or Windows.