Solve : Need to buy a UPS for my desktop tower computer.?

1.	Solve : Need to buy a UPS for my desktop tower computer.?
Answer» I need a UPS for my mini desktop tower computer. The specifications of my computer are as fallows:- System- Dell Inspiron 545MT Operating System- Windows 7 home premium 64 bit Motherboard- N826N DG33M06 SOCKET 775 LGA775 Pcessor - Intel Core 2 Quad Q6600 B3 2400 MHz Kentsfield Ram- 4GB. Two sticks each 2GB DDR2-800 (PC2-6400) 240-pin Graphics card- AMD Radeon HD 4550 Hard disc- one Regular SATA Optical drive- one DVD-RW/DVD+RW Drive Card reader- one front bay card reader Fans- one regular 80mm processor FAN and one regular 92mm case fan The recommended PSU wattage I got was 288 W with 20% capacitor aging when I did the calculation at extreme outervision.com. I have also bought a new power supply for my computer which is a Silverstone ST55F-G 550W power supply. I am also giving the details from the AC input requirements table given in the power supply manual so that it can help in suggesting a good UPS. Please have a look below. Parameter Min. Nom. Max. Unit Vin(Full range) 90 100---240 264 VACrms Vin Frequency 47 60-----50 63 Hz lin(ST55FG-G) 7------3.5 Arms I am from India, Mumbai my budget is 8000 INR or $136 and 10000 INR or $170 which is maximum. I want a UPS to power my power supply sufficiently and efficiently during times when there is adequate power coming from the power GRID and during times when there is an outage. I want a UPS which can keep my computer on for ten to fifteen minutes during an outage so that I can shut down my computer. So please suggest a nice power supply that fulfills these requirements efficiently and which also fits the budget. Thank You very much. Most Universal Power supplies now made can handle either 50 or 60 cycle power. For your use, a 50 VA unit is enough. The service time depends more on the size of the battery. The efficiency is a little better if you use 2430 volt rather than 120 volt. But the savings is not much. Either will work. Some UPS systems allow you to use an external battery, such as a automobile battery. The batteries are often 12 volts types in common use. A battery rated at 100 amp hours could deliver 300 watts for almost 4 hours. In theory. If it comes with an 8 amp hour battery, it can do about 18 minuets.. No exactly. But almost. That is about all I can can say. I do not know if one brand is better than another. EDIT: Also, one can purchase a spacial power supply for a tower computer that has battery back-yip built in. It has the same size, but would use and external battery. This might be available in your country. But you will have to investigate.. All good UPS manuf. have power consumption calculators on their sites...I think a 50VA UPS would be way to low for my computer. Because I have a old UPS with is 360W, output of 230V and a 600VA and this was used to power my olde power supply of 300W and the UPS after one month of being continuously one started to shut down during normal conditions even when there was sufficient power coming from the power grid which led to quite a few crashes of my computer. You need 500 (five hundred) VA or higher. In the past few years the technology has improved. Mostly because of more market demand for quality UPS. This looks like a fair review of some brands. http://lifehacker.com/five-best-battery-backups-ups-units-1465536280 Five Best Battery Backups/UPS Units The units they recommend are much more than what you need. One low power unit the suggest is APC Back-UPS 650 That model will sell l for about $75 in the USA. Personally, I am skeptical about such a low price. But I can be wrong. EDIT: After reading over your last post again, I recall some of my own mrmpoies in living in another country. You may need more that just a UPS. Anotehr item tath migh be useful is called a "power conditioner". The term is perhaps misleading. Here is a explanation. Quote A power conditioner (also known as a line conditioner or power line conditioner) is a device intended to improve the quality of the power that is delivered to electrical load equipment. While there is no official definition of a power conditioner, the term most often refers to a device that acts in one or more ways to deliver a voltage of the proper level and characteristics to enable load equipment to function properly. In some uses, power conditioner refers to a voltage regulator with at least one other function to improve power quality (e.g. power factor correction, noise suppression, transient impulse protection, etc.). The terms "power conditioning" and "power conditioner" can be misleading, as the word "power" here refers to the electricity generally rather than the more technical electric power. Conditioners specifically work to smooth the sinusoidal A.C. wave form and maintain a constant voltage over varying loads. Both line conditioners and UPS are sold by Amazon and others. A top quality UPS should have a conditioner built into the device. As Patio was suggesting with calculators at the better UPS brand sites, while 650VA may be enough to avoid overloading it, if you want it to stay live longer than shorter you can go with a higher VA rating. For example say you have a 650VA unit and based on your load it keeps everything alive for 7 minutes during a power outage. If you go with a 1500VA unit that is brand new you will get closer to 16 or 17 minutes of power to the computer during a power outage. If you want it to stay up even longer you can get a 2500VA unit in which 1500VA + units are considered server class UPS's because they are meant to take on a heavier load as well as keep lighter loads live longer than a normal consumer small office UPS. Anything 1500VA and larger are more common to also come as a 2U or 4U rack mount configuration although you can find some that are heavy rectangular boxes. How long would you like your computer to run for during an outage? Most people BUY UPS's these days just for the short dips in power, spikes in power, and occasional less than a few minute power outage. If this system is ever left running unattended, I highly advise installing the USB or Serial Cable between the UPS and the Computer and installing the software that can tell the computer to shut down when the battery life has drained to 10%, this way the system is shut down properly before the battery completely runs out vs the UPS dropping out and possibility of corrupting the hard drive if it was writing to the drive during the drop out of backup power.Thank you for the infermationI will also be connecting peripheral devises like the IN1910N flat panel monitor, Dell AY410 speakers and a pixma mp480 printer censored scanner to the UPS. Thank You.Sounds good as far as what your plugging into UPS. Just wanted to mention that if you ever get a laser printer, UPS's dont like the sudden amperage draw of laser printers or copiers. Inkjets are fine like the one you have. Lastly UPS's have a Battery Backup group of outlets and another group that are surge supression only. You might already know this, but posting this info here in case anyone else decides that a UPS is a good addition to their setup. Just need to make sure that the equipment you want to keep running uninterupted is on the Battery Backup Outlets and not the surge side only. I have had to add a power strip to UPS's before when it only had like 3 outlets and I had 6 plugs. The large power supplies that waste neighboring outlets can be a problem and you might need more than 1 power strip if you have large cube power supplies that need to be on the battery backup side.I will be connecting a Belkin eight socket power strip to one battery backup & surge protector socket of the UPS and have all my plugs connected to the power strip as I have 6 plugs. Is this fine or will it affect performance in any way. Thank You. It will not affect performance. The outlets are internally a single phase AC power rail basically. As long as you have a UPS rated high enough in VA for your application you will be fine. Just remember never to use this power strip for any heavy amp load applications like a vacuum cleaner or space heater and you'll be fine. For best performance I would get a UPS that will keep everything up for the amount of time that you need it to remain live for. Also be sure to install the software and cable that cames with it if you will ever leave the system unattended and left on as for it will send a signal to the computer to shut down when the battery life drains to like 10% vs the UPS just dropping out when completely drained out and everything powered off instantly which computers dont like. * Stating this based on experience of a prior career I had in IT as Systems Admin and one of our remote sites had a small office with inadequate heat. Someone brought in a 1500watt space heater from home and plugged it into the UPS because the 2 outlets on the wall were in use, and there was an outlet available of the UPS on the Surge only side. I was called when someone said that it smells like something electronic fried in the computer. I got there and saw that the UPS was dead and the small fuse wasnt tripped on it and there was a heavy cooked electronic odor coming from it. I noticed a space heater off to the side of the desk and traced the cord back and sure enough someone plugged it into the UPS and cooked it. When I brought the UPS back to my shop to see how bad it was cooked when opening it, there was globs of solder loose inside as for the PCB inside got so hot that it desoldered the Surge Ony Power Rail and then when the lead dropped from the PCB it burned the traces. The fix to avoid anyone else from doing this was to plug in those plastic childsafe outlet guards with sharpie marker on them written " Do Not Remove - Contact IT ".Thank You for the advice and it was a little funny also. Quote from: DaveLembke on May 29, 2014, 01:36:35 PM Someone brought in a 1500watt space heater space HEATERS can cause other problems, even when they do work...Is it okay if I get back to this forum after one ore two weeks as I am unavailable till this time as I still have more questions about UPS. T hank's. Sure...we'll be here.

Answer»

I need a UPS for my mini desktop tower computer. The specifications of my computer are as fallows:-

System- Dell Inspiron 545MT
Operating System- Windows 7 home premium 64 bit
Motherboard- N826N DG33M06 SOCKET 775 LGA775
Pcessor - Intel Core 2 Quad Q6600 B3 2400 MHz Kentsfield
Ram- 4GB. Two sticks each 2GB DDR2-800 (PC2-6400) 240-pin
Graphics card- AMD Radeon HD 4550
Hard disc- one Regular SATA
Optical drive- one DVD-RW/DVD+RW Drive
Card reader- one front bay card reader
Fans- one regular 80mm processor FAN and one regular 92mm case fan

The recommended PSU wattage I got was 288 W with 20% capacitor aging when I did the calculation at extreme outervision.com.
I have also bought a new power supply for my computer which is a Silverstone ST55F-G 550W power supply. I am also giving the details from the AC input requirements table given in the power supply manual so that it can help in suggesting a good UPS. Please have a look below.

Parameter Min. Nom. Max. Unit
Vin(Full range) 90 100---240 264 VACrms
Vin Frequency 47 60-----50 63 Hz
lin(ST55FG-G) 7------3.5 Arms

I am from India, Mumbai my budget is 8000 INR or $136 and 10000 INR or $170 which is maximum. I want a UPS to power my power supply sufficiently and efficiently during times when there is adequate power coming from the power GRID and during times when there is an outage. I want a UPS which can keep my computer on for ten to fifteen minutes during an outage so that I can shut down my computer. So please suggest a nice power supply that fulfills these requirements efficiently and which also fits the budget. Thank You very much. Most Universal Power supplies now made can handle either 50 or 60 cycle power. For your use, a 50 VA unit is enough. The service time depends more on the size of the battery.

The efficiency is a little better if you use 2430 volt rather than 120 volt. But the savings is not much. Either will work.
Some UPS systems allow you to use an external battery, such as a automobile battery. The batteries are often 12 volts types in common use. A battery rated at 100 amp hours could deliver 300 watts for almost 4 hours. In theory. If it comes with an 8 amp hour battery, it can do about 18 minuets.. No exactly. But almost.

That is about all I can can say. I do not know if one brand is better than another.

EDIT: Also, one can purchase a spacial power supply for a tower computer that has battery back-yip built in. It has the same size, but would use and external battery. This might be available in your country. But you will have to investigate..

All good UPS manuf. have power consumption calculators on their sites...I think a 50VA UPS would be way to low for my computer. Because I have a old UPS with is 360W, output of 230V and a 600VA and this was used to power my olde power supply of 300W and the UPS after one month of being continuously one started to shut down during normal conditions even when there was sufficient power coming from the power grid which led to quite a few crashes of my computer. You need 500 (five hundred) VA or higher.
In the past few years the technology has improved. Mostly because of more market demand for quality UPS.
This looks like a fair review of some brands.
http://lifehacker.com/five-best-battery-backups-ups-units-1465536280
Five Best Battery Backups/UPS Units

The units they recommend are much more than what you need.
One low power unit the suggest is APC Back-UPS 650
That model will sell l for about $75 in the USA.
Personally, I am skeptical about such a low price. But I can be wrong.

EDIT: After reading over your last post again, I recall some of my own mrmpoies in living in another country. You may need more that just a UPS. Anotehr item tath migh be useful is called a "power conditioner". The term is perhaps misleading. Here is a explanation.

Quote

A power conditioner (also known as a line conditioner or power line conditioner) is a device intended to improve the quality of the power that is delivered to electrical load equipment. While there is no official definition of a power conditioner, the term most often refers to a device that acts in one or more ways to deliver a voltage of the proper level and characteristics to enable load equipment to function properly. In some uses, power conditioner refers to a voltage regulator with at least one other function to improve power quality (e.g. power factor correction, noise suppression, transient impulse protection, etc.).

The terms "power conditioning" and "power conditioner" can be misleading, as the word "power" here refers to the electricity generally rather than the more technical electric power.

Conditioners specifically work to smooth the sinusoidal A.C. wave form and maintain a constant voltage over varying loads.

Both line conditioners and UPS are sold by Amazon and others. A top quality UPS should have a conditioner built into the device.
As Patio was suggesting with calculators at the better UPS brand sites, while 650VA may be enough to avoid overloading it, if you want it to stay live longer than shorter you can go with a higher VA rating.

For example say you have a 650VA unit and based on your load it keeps everything alive for 7 minutes during a power outage. If you go with a 1500VA unit that is brand new you will get closer to 16 or 17 minutes of power to the computer during a power outage.

If you want it to stay up even longer you can get a 2500VA unit in which 1500VA + units are considered server class UPS's because they are meant to take on a heavier load as well as keep lighter loads live longer than a normal consumer small office UPS. Anything 1500VA and larger are more common to also come as a 2U or 4U rack mount configuration although you can find some that are heavy rectangular boxes.

How long would you like your computer to run for during an outage? Most people BUY UPS's these days just for the short dips in power, spikes in power, and occasional less than a few minute power outage.

If this system is ever left running unattended, I highly advise installing the USB or Serial Cable between the UPS and the Computer and installing the software that can tell the computer to shut down when the battery life has drained to 10%, this way the system is shut down properly before the battery completely runs out vs the UPS dropping out and possibility of corrupting the hard drive if it was writing to the drive during the drop out of backup power.Thank you for the infermationI will also be connecting peripheral devises like the IN1910N flat panel monitor, Dell AY410 speakers and a pixma mp480 printer *censored* scanner to the UPS. Thank You.Sounds good as far as what your plugging into UPS. Just wanted to mention that if you ever get a laser printer, UPS's dont like the sudden amperage draw of laser printers or copiers. Inkjets are fine like the one you have.

Lastly UPS's have a Battery Backup group of outlets and another group that are surge supression only. You might already know this, but posting this info here in case anyone else decides that a UPS is a good addition to their setup. Just need to make sure that the equipment you want to keep running uninterupted is on the Battery Backup Outlets and not the surge side only. I have had to add a power strip to UPS's before when it only had like 3 outlets and I had 6 plugs. The large power supplies that waste neighboring outlets can be a problem and you might need more than 1 power strip if you have large cube power supplies that need to be on the battery backup side.I will be connecting a Belkin eight socket power strip to one battery backup & surge protector socket of the UPS and have all my plugs connected to the power strip as I have 6 plugs. Is this fine or will it affect performance in any way. Thank You. It will not affect performance. The outlets are internally a single phase AC power rail basically. As long as you have a UPS rated high enough in VA for your application you will be fine. Just remember never to use this power strip for any heavy amp load applications like a vacuum cleaner or space heater and you'll be fine. For best performance I would get a UPS that will keep everything up for the amount of time that you need it to remain live for. Also be sure to install the software and cable that cames with it if you will ever leave the system unattended and left on as for it will send a signal to the computer to shut down when the battery life drains to like 10% vs the UPS just dropping out when completely drained out and everything powered off instantly which computers dont like.

* Stating this based on experience of a prior career I had in IT as Systems Admin and one of our remote sites had a small office with inadequate heat. Someone brought in a 1500watt space heater from home and plugged it into the UPS because the 2 outlets on the wall were in use, and there was an outlet available of the UPS on the Surge only side. I was called when someone said that it smells like something electronic fried in the computer. I got there and saw that the UPS was dead and the small fuse wasnt tripped on it and there was a heavy cooked electronic odor coming from it. I noticed a space heater off to the side of the desk and traced the cord back and sure enough someone plugged it into the UPS and cooked it. When I brought the UPS back to my shop to see how bad it was cooked when opening it, there was globs of solder loose inside as for the PCB inside got so hot that it desoldered the Surge Ony Power Rail and then when the lead dropped from the PCB it burned the traces.

The fix to avoid anyone else from doing this was to plug in those plastic childsafe outlet guards with sharpie marker on them written " Do Not Remove - Contact IT ".Thank You for the advice and it was a little funny also. Quote from: DaveLembke on May 29, 2014, 01:36:35 PM

Someone brought in a 1500watt space heater

space HEATERS can cause other problems, even when they do work...Is it okay if I get back to this forum after one ore two weeks as I am unavailable till this time as I still have more questions about UPS. T hank's. Sure...we'll be here.

Solve : Need to buy a UPS for my desktop tower computer.?

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