psu and ups

agis89

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hello.a few weeks back i bought a new 350 watt ups.also i just bought a gtx 650 ti card.so i would like to ask if the ups will provide enough watt to my 550watt psu in order for the system to work properly?my pc is intel quad core q8300 2.5 g,i have an lcd monitor 1360 720 and 2 120mm fans
 
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Ok well the worst thing the very worst that can happen is your pc freezes from lack of power and over demand on hardware and you'll have to power off and power on .. in that case you know for sure that the wattage is an issue..

however if you try and it works the you are issue free.. I actually dont think you will...

bassybekx

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Id recommend maybe upgrading that power supply to get the better performance that can be offered by your system .. the card requires 400watts according to nVidia .. Specifications Here.

go for something like a CX 500 or if you can push to a GS 700 so you dont have to worry about it. I like corsair been using them for years but most manufacturers will have a list of the recommended power supply vendors just have a look around .. but to answer the question .. I would recommend you upgrade it if you want better performance.
Here's a Similar Thread aswell
 

agis89

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you misunderstood.the psu is just fine.is brand new.an xfx core edition 550 watt.the problem is withthe ups.i cant understand if it will be sufficient because it is 350 watt
 

bassybekx

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Damn your right sorry .. still early in the morning for me .. yes your 550w PSU will be fine .. i gave a link there to nvidias page .. minimum stated is 400w so you should be fine..

hang on ups can you be more specific?
 

agis89

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i'm sorry but i cant i understand if you answered the thing that i want.as i wrote the problem is with the ups(Uninterrupted Power Supplies) and not with psu.the ups is 350 watt while my pc needs at least 450 at 100 percent
 

bassybekx

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sorry .. i dont know enough about ups .. but i found this and hopefully it will help ..

A computer power supply does not pose a seriously complex load ('complex load' in its electrical meaning); in other words, a computer power supply wattage (e.g. 550W) will be approximately the same asis VA value. However, a computer's power supply is typically rated after its nominal output power. Since it can't operate at 100% efficiency, the input power will be higher than 550W under maximum load. The power supply's technical data should tell you its rate of efficiency or its input power under maximum load, and you can chose the UPS accordingly. You could also chose a less scientific approach and justify the purchase of the 800VA, the 600VA, or even 400VA UPS: The bigger UPS will be overrated for this particular power supply, but might provided the better investment as it can support additional (small) devices and is likely to be sufficient in the event of a computer replacement (which might have different power requirements). However, the 600VA unit will probably be just fine for this particular case. You could also argue that the 550W power supply is a nominal power rating; it is the power the power supply is specified to sustain under full load. Your computer will very rarely come anywhere near this, and you could argue that high power number-crunching or DVD writing may not be required during a general power outage, making a less expensive apparently underrated UPS sufficient to sustain operations or data for the expected duration of a general outage.

.. I've never heard of it to be honest and never had an issue with power

anyway if that doesnt help just wait around and im sure someone will be able to help
 

agis89

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thank you that helps a bit.
 

agis89

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720Va/360W.
 

bassybekx

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Right I'm starting to understand the issue (fast learner) ..

basically you have a 350w ups hooked into your 550w psu and your afraid that the ups wont allow the psu to to power the gfx card properly ...

right couple of things to clear up then

1. have you tried putting your gfx under full load (like run a game bf3 or something of that stature)

2. when your running it have GPU-z open and the sensors tab open and let it monitor it you only need to put the gfx card on full load for a few minutes to get a good reading

3. check the sensors afterwards and if everything (voltage, core clock, memory clock and the gpu load are all maxing out at their full speeds then you havent got an issue .. if they dont then you have an issue

Thinking logically about it thats how i would figure it out... Compare the sensors read out to your gfx card specifications
 

agis89

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i haven't tried it yet with a game because i am afraid that either the card or the psu will have a problem.at the asus site (which is the manufacturer of my card) it says that the load consumption is 150 watt.considering that i dont have a very strong proccessor and only 4 b ram.maybe i m under the 350watt.also the only thing tha is connected to the usp is my desctop.the speakers and the monitor are on another socket
 

bassybekx

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Ok well the worst thing the very worst that can happen is your pc freezes from lack of power and over demand on hardware and you'll have to power off and power on .. in that case you know for sure that the wattage is an issue..

however if you try and it works the you are issue free.. I actually dont think you will have an issue but unless you try .. you will never know .. what i expect will happen is either

1. you will have really low frames as there isn't power
2. the power supply will in fact receive enough power and everything will perform properly

i recommend you try but ultimately its your decision..
 
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agis89

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after playing for 1 hour at 100 percent i did not have any problems.also i read somewhere that the watt of the psu are only used when the power is cut off.so everything is good
 

bassybekx

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Excellent .. I had a feeling its was something like a passthrough .. i remember that from college.. but just couldnt remember.. Glad to here it!