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Upgraded y graphics card but it isn't performing as well as my ori


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#1
Gers_

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I recently upgraded my PC's graphics card from a GeForce GT630 to a Radeon HD 6670 in the hope of improving my ability to run games and such. The problem is, however, that although this new card is better than my old one I'm not running games as well as I used to. Where I would run a game at say, 50 frames per second, I'd now get around the 20 mark.
I was wondering if I'm not doing something correctly or what, but I'd like some sort of help if it's possible!

Thanks for any help,
Gers_

I've attached my system info if you need it.

Attached Files


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#2
phillpower2

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:welcome: Gers

Is the PC at the attached link the same model as yours http://www.pcworld.c...291827-pdt.html

Please provide the brand and model name or number of the PSU (power supply unit).

The GeForce GT630 requires a PSU with a minimum 300W output whereas the HD 6670 requires a 400W output PSU.

Unfortunately brand name system builders such as Advent use low powered and inferior quality PSUs in order to keep their build costs down, unless the PSU has been upgraded it is most likely the cause of the poor graphics performance.

If you don`t know the PSU information you will need to take the side off the case and write down the details which may be found on a sticker as in the attachment below;
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#3
Gers_

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Sorry for the late reply, I've been busy with school work.

No, That isn't my computer, it's model number is DT2313.

My PSU is a Channel Well Technology, model number: GPA450P. Which I believe to be a 450W max output.

Thank you very much for the reply!
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#4
phillpower2

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No worries as school must come first :thumbsup:

CWT have a good reputation for producing some good PSUs but unfortunately some are not so good.

Your PSU details http://www.cwt.com.t...odel=GPA Series note the 18 amps on the +12V rail, the 360W combined power output and most telling of all the poor 72% output efficiency rating that it has, 80% should be the minimum and preferably bronze rated.

Lets check the PSU output and temps after you have done some gaming;

Download Speedfan and install it. Once it's installed, run the program and post here the information it shows. The information I want you to post is the stuff that is circled in the example picture I have attached.
If you are running on a vista machine, please go to where you installed the program and run the program as administrator.

Posted Image
(this is a screenshot from a vista machine)

To capture and post a screenshot;

Click on the ALT key + PRT SCR key..its on the top row..right hand side..now click on start...all programs...accessories...paint....left click in the white area ...press CTRL + V...click on file...click on save...save it to your desktop...name it something related to the screen your capturing... BE SURE TO SAVE IT AS A .JPG ...otherwise it may be to big to upload... then after typing in any response you have... click on browse...desktop...find the screenshot..select it and click on the upload button...then on the lower left...after it says upload successful...click on add reply like you normally would.

Depending on the results we may need to run further software for comparison http://www.cpuid.com.../hwmonitor.html
Screenshot instructions are provided to assist those that may read this topic but are not yet aware of the “how to”.
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#5
Gers_

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speed_fan_readings.png

Here you go. This is after about half an hour of playing

Edited by Gers_, 05 June 2013 - 01:28 PM.

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#6
phillpower2

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Temps are good for a computer that has been gaming :thumbsup:

Unfortunately Speeedfan is not showing the voltage readings we need so can you run HWMonitor and provide a screenshot for us http://www.cpuid.com.../hwmonitor.html
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#7
Gers_

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Here are the results;

Attached Thumbnails

  • cpuid.png

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#8
phillpower2

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The +5V rail on the PSU is showing a high reading and the +12V rail is showing a very low reading, both are bad and mean the PSU needs to be replaced but most significantly the +12V is what powers the add on video card and as it is not providing what the card needs the card cannot work to it true potential, see the PSU tolerance table below for what a stable output should be.

Provide a Speccy url for us to see if the bad readings are confirmed http://www.piriform....file-to-the-web
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#9
Gers_

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Okey http://speccy.pirifo...ySEGniHX4dMBg6b

What would you recommend I replace my current PSU with?
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#10
phillpower2

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Thanks for the Speccy url :thumbsup:

The Speccy results are showing the exact bad PSU readings which does suggest that it should be replaced (see attachment below)

Replacement PSU suggestion http://www.amazon.co...C/?tag=pcp0f-21
500W is fine for your present hardware but can I just check that you do not intend adding another 3-4 HDDs in the future.

Some PSU guidance;

Before purchasing a new PSU it is advisable that you have the suspect PSU tested, measure the dimensions of the present PSU and ensure that the new PSU has the correct power connections for the MB, HDDs, optical drives, FDDs or add on cards such as a video card if one is fitted.


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