https://community.hpe.com/t5/servers-general/ups-amp-server-suddenly-shut-down-when-serial-cable-connetced/m-p/3877688#M3829 HP T1500 XR UPS uses HP Power Manager 4.x software to control server shutdown. The software can be downloaded from <A href="http://www.hp.com/products/ups." target="_blank">www.hp.com/products/ups.</A> It sounds like you are using the Windows UPS service for this UPS. To disable this server, browse to Windows Services and make sure this service is stopped/manual/disabled. Wed, 11 Oct 2006 09:41:23 GMT Steve Tran 2006-10-11T09:41:23Z https://community.hpe.com/t5/servers-general/ups-amp-server-suddenly-shut-down-when-serial-cable-connetced/m-p/3877687#M3828 We have several Compaq T1500 XR UPS's along with several APC Smart-UPS's. Connecting a serial cable between a server and the APC UPS's is no problem, but whenever I try to connect a serial cable between a server and a Compaq UPS both the UPS and the server are immediatly and ungracefully shut down. Any thoughts? Tue, 10 Oct 2006 09:42:32 GMT https://community.hpe.com/t5/servers-general/ups-amp-server-suddenly-shut-down-when-serial-cable-connetced/m-p/3877687#M3828 Carpe 2006-10-10T09:42:32Z https://community.hpe.com/t5/servers-general/ups-amp-server-suddenly-shut-down-when-serial-cable-connetced/m-p/3877688#M3829 HP T1500 XR UPS uses HP Power Manager 4.x software to control server shutdown. The software can be downloaded from <A href="http://www.hp.com/products/ups." target="_blank">www.hp.com/products/ups.</A> It sounds like you are using the Windows UPS service for this UPS. To disable this server, browse to Windows Services and make sure this service is stopped/manual/disabled. Wed, 11 Oct 2006 09:41:23 GMT https://community.hpe.com/t5/servers-general/ups-amp-server-suddenly-shut-down-when-serial-cable-connetced/m-p/3877688#M3829 Steve Tran 2006-10-11T09:41:23Z