Problem: DL380 Win2K3 +SP1 wont detect a HP5500XR UPS This UPS is connected via a serial cable to the server, only one com port COM1. When installing HP Power Manager 4, it says it cannot find any UPS device attached. Nothing else is using COM1, correct drivers for the COM ports are installed. Ran a debug code at the CMD prompt and it reported COM1 was responding normally. Have posted to HP forums and found other ppl with similar issues, no fix as yet. Fix offered of disabling ILO serial interface has been tried and it still doent work. If anyone has anything to offer would be appriciated. Cheers