Help me to find fault in my PC?

May 4, 2012 at 00:39:22
Specs: Windows XP, 512 MB,DDR Ram,400MHz
I bought a new UPS[ APC 600 VA,360 W] 5 days ago.In the starting days,CPU & Monitor would power up simultaneously.Occasionally ,when monitor is turned ON ,UPS can't handle it & goes to Overload state.Now it became regular & so I have to remove Monitor from UPS now & now PC would power up.

1. Is this fault of UPS or my PC components?

Configuration - AMD Sempron 2400+ [1.67 Ghz],ASUS A7v400-MX,17 inch LG CRT monitor,BSNL WI-FI modem

Service Engineer of APC says it may be the problem of SMPS [UMAX 450W-1.5 years] or the monitor taking too much power [a short circuit problem].I have done dryout [fix soldering] the monitor abt 4 months ago.My PC is 6 years Old .Before the new UPS,I had a APC 550 VA,300W.

Can You Guide me to make sure that UPS is no faulty?

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May 4, 2012 at 05:23:34
It sounds just like APC says, the CRT monitor is old and wearing out and is drawing too much current for the UPS so plug it into the Surge only side (if available) or a separate surge suppressor until you can replace it with an modern energy efficient monitor.
If you are running a gaming level graphics card now, it can be drawing a lot more than the onboard graphics (or older graphics card) and the computer with the graphics card now needs most of the UPS by itself. If you have recently upgraded your graphics card then you need to upgrade the UPS or you will not be able to keep the monitor on it as well (look into the 1000/1200VA; 500/600W range+ depending on your card's needs).

You have to be a little bit crazy to keep you from going insane.

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May 4, 2012 at 20:14:26
I didn't have a Graphics Card .Also My PC resets to default Bios when my PC is powered ON..What causes this?

Also 1000 VA UPS seems pretty much expensive..Previously,MY PC worked fine on a 500 VA,300 W UPS..Is monitor tooking twice or more its rated power?

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May 4, 2012 at 23:59:24
"Also My PC resets to default Bios when my PC is powered ON..What causes this?"

Dead CMOS battery.

Goin' Fishin' (Some day)

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May 5, 2012 at 20:15:50
@Richard59 ..are you sure CMOS battery is crashing the PC?

What do you think about the overload condition?Is CRT the culprit? or UPS or SMPS?

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