Is 1000VA UPS enough for my PC

[adityasrinivasb]

Hi

I have a PC with the following config

1. Intel Core i7 - 4790K CPU @ 4.00GHZ, 4001 MHZ, 4 cores, 8 Logical processors.
2. Motherboard - ASUS z97-A.
2. SMBIOS verison 2.8 . BIOS version/Date - American megatrends Inc 2012, 9/30/2014
3. Memory - Two Kingston HyperX HX318C10F/8 1866 GHZ. Total 16 GB.
4. Harddisk - Seagate - ST500DM002-IBD142 ATA Device
5. Power Supply - CoolerMaster thunder 500W. Model - RS-500-ACAB-M3
6. CPU cooler - Cooler Master Hyper 212x
7. Monitor - Dell E2014H 19.5 inches
8. DVD Writer - SATA RW - LG. HL-DT-ST DVDRAM GH24NSCO ATA Device
9. Cabinet - Cooler Master force 500
10. Cabinet Fans - Cooler Master 120MM Fans - 2 numbers
11 . NetGear N300 WNA3100M Wireless Adapter

I purchased a Microtek 1000VA Twin guard+ UPS with AVR 135v~300v. I would like to know if this is enough to support my computer. I don't understand this power jargons a lot. I purchased the computer two weeks back and one of the capacitor in the cooler master SMPS busted and leaked. My PC restarted in the middle repeatedly and it took time to figure out the problem and get it corrected.

So I just want to know if this UPS is good enough to support my beast.
Please let me know. The PC vendor blamed the UPS or erratic voltage in my home as the likely cause of capacitor burst. I argued that the SMPS might be having a faulty capacitor. I also highlighted the point that the UPS has a AVR of 135v~300V which acts as a stabilizer. The pC vendor says UPS is not a stabilizer. All this is confusing to me.

Thanks
Srinivas

 

[alienb]

The PC vendor is trying to place blame on anything other than shoddy sub components.

That UPS should run your machine for about 20 minutes or so under low load. You might look into something that's also an AVR.

 

[TemjinGold]

Err... that would be quite the voltage burst if it busted a cap... The pc vendor is full of it.

 

[adityasrinivasb]

Hi Guys

Thanks for your reply

I didn't power on the computer yet after I got the SMPS replaced by the new one. I don't want to take any chances as I spent a lot to build the computer. I want the UPS vendor to thoroughly check the UPS for which I logged a complaint .The PC vendor asked me to purchase a power extension socket that would also act as a spike buster. I got a systech power extension socket. It is written on it that it is a surge protector.

Would this be enough or better to go for a power stabilizer device?

Regards
Srinivas

 

[Blain]

What wattage (not VA), is the UPS rated for?

 

[Bearmann]

...The PC vendor asked me to purchase a power extension socket that would also act as a spike buster. I got a systech power extension socket. It is written on it that it is a surge protector.

Would this be enough or better to go for a power stabilizer device?

Regards
Srinivas

UPS manufacturers generally advise against plugging the UPS into a power extension cord or plugging the extension cord into the UPS. Usually it will invalidate your UPS warranty.

UPS units already contain a surge protector.

 

[westom]

The PC vendor asked me to purchase a power extension socket that would also act as a spike buster.

Wow. So much fiction and myth.

A typical 120 volt UPS can output 200 volt square waves with a spike of up to 270 volts - just like this one. Power that 'dirty' is also ideal for any computer (due to what must already be inside its power supply).

However, should you fear 'dirty' power causing supply damage, then just plug a computer into cleaner power - direct from the wall receptacle.

Nothing on a power supply's output can damage that supply. Too little load does not cause damage. Largest load (ie a short circuit) is also an ideal and non-destructive load for any properly designed supply. In fact, Intel even defined how thick a jumper must be to short all power supply outputs together as a test ... without any damage.

Same applies to AC power. Voltage can drop so low than incandescent bulbs dim to 40% intensity. Even voltage that low is an ideal voltage for any computer. Supplies must be so robust as to not be damaged by some of the 'dirtiest' power - from a UPS in battery backup mode.

An extension socket that you assume is a surge protector is quietly discouraged by UPS manufacturers. UPS manufacturers do not like to admit how 'dirty' their UPS output power can be. So 'dirty' as to be potentially harmful to power extension sockets that are surge protectors.

Meanwhile, did they also mention a knot tied in a power cord is a surge protector? Yes it is. A near zero surge protector. But again, so many recommended without numbers. So I will also. Just tie knots is all power cords to protect from surges. These type of myths are easily promoted when one does not always demand spec numbers with every recommendation.

More specs. Is your computer also toasting bread? It must if it needs a 1000 VA power supply. No PC consumes anywhere near to that power. But myth purveryors claim more watts mean better quality. Quality only increases in their profit margins. Most computers consume less than 200 watts and almost never peak above 350. But when selling to consumers who do not demand numbers, then 1000 VA power supplies mean increased profit margins. How oftern does your computer toast four slices of bread?