UPS BE750G doesn't LIKE my new monitor, HP 2010i flat-screen LED (20")

[Anonymous user]

My APC UPS, BE750G makes nasty whines when I try to start my machine with the new HP 2010i LCD flat-screen 20" (diagonal) monitor plugged into it. And not even if I plug the monitor into the wall! It blinks about 12 times (normal start-up), but then starts whining, and won't do anything. I can't get my computer started (a Touch System, dated 2004).

The only way I can get my machine to start is to use a surge protector instead. I REALLY don't like being without a UPS; our power is pretty rough around here in the boonies.

Do I need a new UPS? If so, what model? The 750 is ample power for my equipment, I believe.

Hard drives:

internal: two Western Digital 80 GB drives (formatted as 4 partitions, 2 primary)
C and E on drive 0
D and F on drive 1

These are IDE drives.

external: one WD 120 GB drive (111 formatted)

CD-Rom - LG CD/DVD-rom

modem (USR Courier V. Everything external modem)

keyboard - Fujitsu standard keyboard

mouse - HyperLaser optical mouse

and now the monitor, the apparent source of the problem.

I'll appreciate any help anybody can offer!

Mon, 17 Jan 2011 12:03:39 (PST)

[Anonymous user]

If the monitor is plugged into the computer at all, the UPS whines.

I may need to run a series of tests again; guess I need some sleep first!

Forgot to say what my CPU is.

Touch system; Mini ATX Tower, P4, 2.0 GHZ, 738 MB memory, Radeon (7000?), has floppy drive,

Windows XP Home ISP3, fully updated)

By the way, I'm not running PowerChute; maybe I should download the new one and try it. 2.0 wouldn't work on my system.

Mon, 17 Jan 2011 17:38:43 (PST)

[Anonymous user]

I'm not sure I tested that - so short of sleep - but - a local computer guy suggested today maybe I need a new battery! Tell you what - I'll BET that's it!

So I'll get the battery tested, and likely, it only needs to be replaced!

Oh, duh! I'll report back in a few days on that.
Tue, 18 Jan 2011 16:40:20 (PST)

[Anonymous user]

My battery tested good, but it's getting old, so I got a new one anyway, and will store the old one for a while.

Naturally, I still had the problem with the new battery in the UPS, so I plugged everything back into the surge protector and I'm running on that for the moment. I just can't imagine what sort of incompatibility - that's what it seems to be - the monitor has with the UPS!

If anybody has any ideas, by all means, be my guest!

(review: when the new monitor [HP2010i) is connected to the computer, and I start up the UPS, it does its normal start-up, but then stops, and emits a constant tone - and it's turned off; I can't start the computer.)

Wed, 19 Jan 2011 19:12:37

[Anonymous user · Accepted solution]

Your suggestion about overload makes sense to me. However, the load on the UPS should be LESS since I put in a new monitor, as the new one requires less power than the old CRT.

It ended up that I bought a new UPS - same model as before - BE750G (Canadian version). Thereafter, NO PROBLEMS!

What a huge relief!

Thanks to everyone for your help!