Synology PSU 250W_3 PSU 250W 24p+12p+8p Applied Models: DS1813+, DS1515+, DS1513+, DS2015xs, RS815+, DS1517, DS1817, DS1815+ If you have a DS1515+/DS1815+ exhibiting a DOA (completely dead) status, please be advised that a new PSU will not repair the unit. Instead, please contact Synology Technical Support to get your unit replaced, as the motherboard needs to be repaired.