No, currently no Energy Labelling regulation is in force. A proposal, however, is in preparation. You may find information on the legislative process here.
Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.
The requirements in the regulation are for placing on the market of computers and computer servicers. They do not apply to internal power suppliers sold separately, not as part of a computer/computer server.
Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.
As indicated in the Guidelines, the 'Generalized Test Protocol for Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies Revision 6.6' shall be used as reference standard, as stated in the Commission Communication 2014/C 110/05 of 11.4.2014. The product shall be tested at the following voltage and frequency combination: 230V at 50Hz. A footnote clarifies that 'a typo present in the Commission Communication (2014/C 110/05 of 11 April 2014) erroneously indicating 230 V at 60 Hz.'. Note that the transitional methods refer to the 'Generalized Test Protocol for Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies - Revision 6.6 '. Version 6.7 of the same test protocol, includes a 'Table 4-1 Alternate Voltage and Frequency Combinations' with the possibility of testing at 50Hz.
Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.
No, AiO computers are not considered displays but computers. No energy label is currently foreseen for any computer (but a Regulation is in preparation).
Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.