History for ATX Power Supply limits

changed:
-
Per the ATX 2.01 specification, an ATX power supply has the following voltages:

+-----------------+--------------+--------------+---------+-----------+
|    RAIL         |      Nominal | Tolerance    | Minimum |  Maximum  |
+=================+==============+==============+=========+===========+
|	 +5 VDC   |	  5.0	 |	5%	|  4.75	  |   5.25    |
+-----------------+--------------+--------------+---------+-----------+
|	 -5 VDC   |	 -5.0	 |	5%	| -4.75	  |  -5.25    |
+-----------------+--------------+--------------+---------+-----------+
|	+12 VDC   |	 12.0	 |	5%	| 11.40	  |  12.60    |
+-----------------+--------------+--------------+---------+-----------+
|	-12 VDC   |	-12.0	 |	5%	| 11.40	  | -12.60    |
+-----------------+--------------+--------------+---------+-----------+
|	 +3.3 VDC |	  3.3	 |	4%	|  3.17	  |   3.43    |
+-----------------+--------------+--------------+---------+-----------+
|	 +5 VSB   |	  5.0	 |	5%	|  4.75	  |   5.25    |
+-----------------+--------------+--------------+---------+-----------+