Psu wattage confusion

Dipanjan 66o · Jul 27, 2013

Hey guys, currently I use a 400 watt psu
But as I upgraded to gtx 650ti boost, my gpu needs more power... So I want to upgrade to corsair cx500.. But my ups rating is 600 va... So my question is will the ups be able to supply the power draw of a 500 watt?
Pls help me in this section...
And thanks in advance

leanderthaler · Jul 27, 2013

I would go with an 750watt power supply because if you are going to upgrade you're gpu again in the future you probably need a new psu again so you better go with 750 watt

makkem · Jul 27, 2013

Hi
As a rough rule Watts = 0.6 x VA
So the total power of everything plugged into your UPS should not really exceed 360W though there is some leeway on this.
Note that under typical usage your power supply will not be maxing out and will be taking closer to 250W for most of the time.
Its a close one but I would say you would be OK just remove any non essential equipment like printers from your UPS.

adimeister · Jul 27, 2013

Yea you'll be fine with a 500w.

unksol · Jul 27, 2013

He'd be fine with a 400W if it's a decent brand. There's no reason to use a 500W to run a 650Ti boost it's only a 134W part, and NO gpu needs a 750W supply. That's ludicrous

leanderthaler · Jul 27, 2013

unksol :

I mean that if he want future proof and maybe he want to do a SLI ?

Dark Lord of Tech · Jul 27, 2013

A decent 450w from a reliable brand will run it.

What online retailer would you use?

Seasonic \ XFX \ Corsair \ Antec \ < Decent reliable brands.

Search for one of these brands ^ 450w range.

AxlFone · Jul 27, 2013

Absolutely no reason to upgrade PSU. 300w is more than enough for that build.
CX is not best corsair.
Seasonic is good if you take "G" or "X" Do not take that seasonic x 760

Rosewill capstone is really good and reliable PSU . much better than corsair.
Seasonic have too dropped out from quality PSU maker. Lots of send backs have been.
Look here: http://www.behardware.com/articles/843-8/components-returns-rates-5.html

Dark Lord of Tech · Jul 27, 2013

Nothing more that acouple fanless units returned .....LOL

Looking at the 400-450W models, we get the following classification: Corsair CX430
- 1.39% Corsair VX450W
- 0.93% Antec Neo ECO 400C
- 0.83% Seasonic X-400 Fanless < 1 Fanless unit , no others
- 0.49% Antec Neo ECO 450
- 0.40% Cooler Master Elite Power 400W
- 0.36% Antec Neo ECO 400
- 0.31% Fortron FSP400-60GhN
- 0.00% Antec High Current Gamer 400
- 0.00% Antec EarthWatts EA430 Green
- 0.00% Antec BasiqPower BP430
- 0.00% Antec Neo ECO 450C

Then for the 500-550W models:

- 16.59% Fortron Blue Storm Bronze 500
- 6.84% Corsair VX550W
- 1.98% Fortron Everest 85PLUS 500
- 1.97% Cooler Master Real Power M520
- 1.91% Akasa Essential Plus 550
- 1.89% Antec High Current Gamer 520
- 1.69% Corsair CX500
- 1.65% Cooler Master Silent Pro M500
- 1.38% Cooler Master GX 550W
- 0.77% Antec EarthWatts EA500 Green
- 0.67% Antec BasiqPower BP500U-EC
- 0.52% Antec Neo ECO 520C
- 0.28% Antec Neo ECO 520
- 0.00% Seasonic M12II-520
- 0.00% Seasonic S12II-520

nostall · Jul 27, 2013

REGARDING the UPS. Whether it will work or not depends upon, not the PSU wattage, but what's running at the time.
The PSU only provides the volts/watts the equipment needs to run: at idle, not very much; middle of an online BF3 game, quite a bit.
That 600VA UPS can probably power your system, as long as the UPS is relatively new and the battery is charged up, for 3-5 minutes in a power failure - my guess. The new card would take more power than, say a 650 (non-Ti), but really only if it was NOT idling when the power failed.
Upgrading the power supply is always a good idea, but the only way to see if your UPS is actually going to be strong enough to work is, FOLLOWING THE MANUFACTURES DIRECTIONS, test it: Fire up the computer and press the test button on the UPS. Do NOT unplug it from the wall to test: you can kill the UPS.

Dipanjan 66o · Jul 27, 2013

Dark Lord of Tech · Jul 27, 2013

If you have more questions just ask.

Dipanjan 66o · Jul 27, 2013

thanks for ur suggestion...
i was also thinking about to upgrade to a 450 one... it will be good for both my gpu and ups than getting a 500 watt......
can i choose a cooler master product? or should go with corsair?
please suggest me a switable one and budget friendly... im not gonna go too far with my bucks....
and please dont make a list of good psus' and let me sellect one of them...
u do the job...
thanks again...

Dark Lord of Tech · Jul 27, 2013

Corsair over coolermaster.

Dipanjan 66o · Jul 27, 2013

Dipanjan 66o · Jul 27, 2013

thanks again.. and for sure that means it will not create any prob while running on a 600 va ups??

Dark Lord of Tech · Jul 27, 2013

Should not be an issue.

Follow nostall suggestions:

REGARDING the UPS. Whether it will work or not depends upon, not the PSU wattage, but what's running at the time.
The PSU only provides the volts/watts the equipment needs to run: at idle, not very much; middle of an online BF3 game, quite a bit.
That 600VA UPS can probably power your system, as long as the UPS is relatively new and the battery is charged up, for 3-5 minutes in a power failure - my guess. The new card would take more power than, say a 650 (non-Ti), but really only if it was NOT idling when the power failed.
Upgrading the power supply is always a good idea, but the only way to see if your UPS is actually going to be strong enough to work is, FOLLOWING THE MANUFACTURES DIRECTIONS, test it: Fire up the computer and press the test button on the UPS. Do NOT unplug it from the wall to test: you can kill the UPS.

AxlFone · Jul 27, 2013

REGARDING the UPS. Whether it will work or not depends upon, not the PSU wattage, but what's running at the time.
The PSU only provides the volts/watts the equipment needs to run: at idle, not very much; middle of an online BF3 game, quite a bit.

I think made my point clear

Dipanjan 66o · Jul 27, 2013

Should not be an issue.

Follow nostall suggestions:

REGARDING the UPS. Whether it will work or not depends upon, not the PSU wattage, but what's running at the time.
The PSU only provides the volts/watts the equipment needs to run: at idle, not very much; middle of an online BF3 game, quite a bit.
That 600VA UPS can probably power your system, as long as the UPS is relatively new and the battery is charged up, for 3-5 minutes in a power failure - my guess. The new card would take more power than, say a 650 (non-Ti), but really only if it was NOT idling when the power failed.
Upgrading the power supply is always a good idea, but the only way to see if your UPS is actually going to be strong enough to work is, FOLLOWING THE MANUFACTURES DIRECTIONS, test it: Fire up the computer and press the test button on the UPS. Do NOT unplug it from the wall to test: you can kill the UPS.

Dipanjan 66o · Jul 27, 2013

hmm... okay you are talking about the time when its a power cut...... ok... here im not interested about the run time of my system with gaming wattage needs at that time....but i want to know , if it will be able to go up with without any difficuly with most of gaming needs all the time when its in normal situation and the ups is connected with normal voltage line... and for your kind attention i also wanna say that, in my area , the incident of power cut is very veryyy rare thing.... so should i connect the psu directly to the main line without any ups to avoid any performance lagg?????

nostall · Jul 27, 2013

Dipanjan 66o said:SR-71 Blackbird said:Should not be an issue.

Follow nostall suggestions:

REGARDING the UPS. Whether it will work or not depends upon, not the PSU wattage, but what's running at the time.
The PSU only provides the volts/watts the equipment needs to run: at idle, not very much; middle of an online BF3 game, quite a bit.
That 600VA UPS can probably power your system, as long as the UPS is relatively new and the battery is charged up, for 3-5 minutes in a power failure - my guess. The new card would take more power than, say a 650 (non-Ti), but really only if it was NOT idling when the power failed.
Upgrading the power supply is always a good idea, but the only way to see if your UPS is actually going to be strong enough to work is, FOLLOWING THE MANUFACTURES DIRECTIONS, test it: Fire up the computer and press the test button on the UPS. Do NOT unplug it from the wall to test: you can kill the UPS.

Just to clarify: a UPS (Uninterruptible Power Supply) ONLY provides FULL power to a system when there is a power failure. It does not power your system when there is current from the wall socket; when there is current from the wall socket a good UPS will clean up the power from the wall and provide a steady, clean power input to the computer with no fluctuations (120 or 230 volt depending on where you live), and they usually provide good surge protection. But again, that UPS is not providing all the power it can (600VA @ ??watts) unless there is a power failure.

Dark Lord of Tech · Jul 27, 2013

Thanks ^

nostall · Jul 27, 2013

Dipanjan 66o :

There isn't going to be any lag connecting to the UPS; it is simply to protect your equipment. The new power supply will work just fine, and plugged into the UPS it will have some additional protection against power fluctuations and the rare failure of the power grid.
I run both my PC's on UPS systems and the only time I ever had a problem was when they reached about 4-5 years of age and the internal batteries wore out and had to be replaced: At that point the UPS caused a probelm because they didn't even have enough strength left to correct minor fluctuations.

Dipanjan 66o · Jul 27, 2013

nostall :

Dipanjan 66o :

There isn't going to be any lag connecting to the UPS; it is simply to protect your equipment. The new power supply will work just fine, and plugged into the UPS it will have some additional protection against power fluctuations and the rare failure of the power grid.
I run both my PC's on UPS systems and the only time I ever had a problem was when they reached about 4-5 years of age and the internal batteries wore out and had to be replaced: At that point the UPS caused a probelm because they didn't even have enough strength left to correct minor fluctuations.

Dipanjan 66o · Jul 27, 2013

oh thanks a lot bro... where u've been?? missed your replies for a while...
and sorry for such a foolish question...
thank you again

Psu wattage confusion

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