What are the main differences between the ATX and the AT?
The characteristics of ATX power supply is the most important, do not use the traditional electric switch to control the power supply is working, but the combination of +5VSB and PSON "to realize the power on and off, as long as the" PSON "signal level changes, you can control the power on and off. This allows you to turn off the computer power via the operating system.
1. ATX power supply, more than the AT power output of a 3.3V2. and motherboard connection socket different3. ATX power support software shutdown, AT power supply does not support software shutdownNote second, if the new motherboard does not support, it will be very troublesome
The ATX power supply is proposed by Intel in 1995, the industry standard, starting from the initial ATX1.0, ATX standard and after a number of changes and improvement, which is popular in domestic market is ATX2.03 and ATX12V two standards.
The AT power was the standard proposed by IBM early on when the PC/AT was introduced, providing about 190W of power supply at that time. AT power supply must have a power switch to control the computer switch.
