Powerchute prevents my machine from sleeping

[Anonymous user]

Ever since installing PowerChute 2.1.1 on my home PC I can no longer put the PC into sleep mode. It powers off my display but the fans keep running. If I kill the system tray application, my PC sleeps just fine. I'm running Vista 32-bit.

Is this a known issue?

[TheNotoriousKMP_apc · Accepted solution]

Why're you putting your system into sleep mode? You do understand that if the PC is in sleep mode when the UPS is required to do a graceful shutdown, it will in fact, not do a graceful shutdown. The only power saving setup you would want would be anything to control the monitor only. Everything else is going to have an adverse affect on the PC and UPS working together properly.