Yra toks APC Smart-UPS 620. Kartais nei is sio, nei is to dingsta itampa isejime, tinklo itampos tuo metu irgi beveik neima (nebent kiek budinciam rezime reikia) ir mirksi du mineti LED'ai (~2Hz dazniu). Manualas sako: Internal UPS fault. Do not attempt to use the UPS. Turn the UPS off and have it serviced immediately. http://213.175.108.87/apc_smart-ups_620va.pdf Isjungus ir ijungus UPS'a vel viskas gerai... iki kito karto.