I have bought Powercom UPS, model : IND-600A in year 2005.
From last 2-3 days it is not working properly, when i switch on the plug socket, room's fan and lights gets fluctuating. Also when i switch on the ups by pressing the button provided on it, it starts producing sound(beep). This happens sometimes but not always. Sometimes when i turn on my pc after 3-5 min., the ups starts beep and shutdowns [sometimes even without any sound(beep)]. As shutdown goes unexpectedly Windows ask for normal or safe mode boot which may lead to vulnerable working of Windows 7 and can loose my data which is bothering me much more.
I have given the ups battery power supply to my monitor and CPU only.
OS : Windows 7 Ultimate X86 SP1 Build 7601
Processor : AMD Athlon II X4 630, 2800 Mhz
RAM : 4GB
MotherBoard : Asus M4A78LT-M LE
Hard Disk : WD Black Edition 640 GB
Power Supply : Odessey 450W
Monitor : LG Flatron E2040T
Help Me with this frustrating conditions.