[. . . ] 8 kWh/year adjustments when discrete graphics cards Not applicable are enabled (from 1 July 2014) ETEC allowance with capability adjustments when discrete graphics cards are disabled (from 1 January 2016) ETEC allowance with capability 31. [. . . ] 21 Watt Off mode with WOL enabled power Not applicable demand Maximum power demand Not applicable Internal power supply (IPS) efficiency at 10 %, 20 %, 50 % and 100 % of rated Not applicable output power External power supply's (EPS) average 89. Measurement methodology for sleep mode EN 62623:2013 — Desktop and notebook computers — Measurement of energy consumption: 5. Method for determination of sound power levels of equipment in reverberation test rooms; 7. EN 61960:2011 Secondary cells and batteries containing alkaline or other nonacid electrolytes — Secondary lithium cells and batteries for portable applications: 7. [. . . ] EN 61960:2011 Secondary cells and batteries containing alkaline or other nonacid electrolytes — Secondary lithium cells and batteries for portable applications: 7. [. . . ]