doubt about buying ups

[Ananthu k]

if i have a 750w PSU, what should i consider while buying a UPS?

[Origami Cactus]

What is the actual power usage of parts inside the computer? I doubt it is anything close to 750w.

 

 

[rEkmAInc1csBnlM6C85H]

I run a 1300VA system with USB support, so Windows sees it as a laptop battery and can do auto shutdown at a certain percentage. But real world at a draw of 200 - 300W it gets 12 minutes of up time on power cut ( 4 minutes if I am in a game with the GPU maxed). Overall that is not too bad as that covers the; desktop, two screen, and my networking gear.

 

Things to consider:

• Consumer UPS systems even the big ones are not designed to run for a long time, they just to let you do a safe shut down.
• If the UPS is undersized and can't handle the peak draw it may shut down on power loss.
• Plugging a laser printer into a consumer UPS and powering it on can sometimes blow internal fuses and surge protection. (Seen it happen twice)
• The sealed lead acid battery inside will wear out, and on quality units it can be replaced easily.
• Consumer UPS units are not line interactive, and can have their tolerances to cut in adjusted.

If you intend to run screens and other additional items I would go with 1000VA system minimum. But 600VA - 850VA could work depending on your systems power.

 

EDIT: Also everything instantly assumes your desktop is a laptop, that is normal but can be a little annoying when it stars throwing you into power saving modes. As you can see below the 3900X is a great laptop processors .

 

[Ananthu k]

54 minutes ago, Origami Cactus said:

What is the actual power usage of parts inside the computer? I doubt it is anything close to 750w.

 

 

not now....but i bought the psu considering future upgrading

 

[Lot Qahnaarin]

For a UPS, you may want to look at if it is a Offline, or an Online UPS. 

 

An Online UPS means that while the UPS is plugged into the wall, and your system is plugged into the UPS, your system is running off of the UPS's battery. This means that the UPS is always having to recharge itself, and this causes the UPS to shorten its lifespan incredibly. These are also more expensive, because corporations need this so if power goes out, the server(s) has some time to properly shutdown to protect data. These have surge protectors to protect against Power Surges. 

 

An Offline UPS only uses its battery once it detects that no power is coming through the wall outlet. This means that they have a small delay before they activate, meaning that for a fraction of a second your system loses power. These usually have longer lifespans, though, so they are much cheaper. These also have surge protectors to protect against Power Surges. 

 

It is also wise to take the advertised battery life and divide it by two.

 

  

[FALC0N]

On 10/5/2019 at 11:48 PM, Ananthu k said:

if i have a 750w PSU, what should i consider while buying a UPS?

Buying United Parcel Service would cost hundreds of millions of dollars.  Why does owning a 750w PSU compel you do attempt this?