New Graphics Card, Computer crashing/freezing. R9 270x

Melmannn

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Sep 23, 2015
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I've just received my new graphics card in the post and when I went to plug it in and use it, I found out it does not perform as well as I had hoped. I plugged it into the motherboard and plugged the two 6 pin connectors into it from my 500W power supply and started it up. Before I go any further I should mention that I am not by any stretch of the imagination a wizard when it comes to computers. I just about know the basics so I apologise if I get anything wrong. Here are my computer specs.

Windows 7 64bit
AMD fx 4100 Quad Core Processor
500W power supply ( don't know much more than that )
8gb of RAM
Sapphire R9 270x

Once I started up my computer I put the disk that came with the card into my pc and installed the drivers ( rookie error ). Apparently these drivers were extremely out-dated. So I went to the AMD website to update the drivers. I now have the latest version. Before I do anything, I can notice some colour disfiguration in some areas of the screen, close to the top and the bottom certain streaks of pixels would turn a different fuzzy colour for a moment. This happened quite frequently. I didn't think much of it and I continued on and opened up a game to test out this new graphics card. I opened up CSGO (Counter Strike Global Offensive) And tried to start Match Making. Very very soon (2-3 minutes) after I entered the game I just completely froze. I could still hear the people I was talking to in Team Speak and certain other processes on my computer still worked (to an extent) but CSGO completely froze. It would play back the last sound it heard before it crashed over and over again, like when you play a scratched CD. Almost like it was jolting back and forth. However this game is not on a CD it's on my Hard drive. And this never happened when I was using it with my old crappy graphics card. After about 5 minutes or so the game would just continue like nothing ever happened and then it would do it again 2 minutes later. It might be worth mentioning that for the 2-3 minutes that it did work my fps had increased from what it was before, but not by as much as I was expecting. I hope somebody can help me as I'd love to get this fixed within the next few days or I'm going to have to return it.
 
Solution
First, that system is not going to come close to 500W, but I agree if it's a junk-brand PSU, it may get wobbly under any significant load. Really important to know the make and model of the power supply before rushing to that judgment. I don't think it's the power supply, though.

Those symptoms do not sound like a power problem. If it's a power issue, usually it either works or it doesn't - more likely the system would just crash or restart, or at the very least you'd crash out of the game. Screen artifacts, or a half-working card where the video freezes but you still get audio, sounds more like the GPU is malfunctioning.

If possible, I would test that card in a different system and see if you get a similar result. If so, you know...

Melmannn

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I wouldn't say that much power would make that much of the difference, but I'm no expert
 

jbseven

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It matters especially when running cheaper power supplies. And of course, psu's lose some of their output wattage every year due to capacitor aging.

Your pc will boot fine since not as much power is needed but will crash, freeze or become sluggish under high load (gaming).
 

Melmannn

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Okay, I should look into getting a new power supply then. Do you think 600w is enough. Do you have any recommendations? Thanks
 

Melmannn

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Okay, and you think this will completely fix my issue?
 

Melmannn

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I believe the old card is a EVGA GeForce GT 640. I'm not 100% but I can check it when I'm home.
I will try using the uninstaller and see what happens. Thanks again for the advice guys.

Just another question, do you think there is any chance the card is faulty? Or simply just not working well with my current pc?
 
Changing from an NVIDIA GPU to an AMD GPU requires removal/uninstall of the old driver. Remnants of old drivers have been known to cause application crashes or video glitches.

There is still a chance that you received a defective graphics card.
 

Bungle11

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http://outervision.com/power-supply-calculator

You can check your power requirements on the link. I've made some basic assumptions. you need at least a 430w psu for your setup. As said by previous posts, psu power ratings can be false. A cheap 500w psu will not give you 500w at 80 to 100% load. Probably 400w max. a Tier one/ Tier 2 psu will give you almost, if not full power at 100% load. The recommended psu for your gpu is 550w/600w. So the problem is in my view your psu.
 
First, that system is not going to come close to 500W, but I agree if it's a junk-brand PSU, it may get wobbly under any significant load. Really important to know the make and model of the power supply before rushing to that judgment. I don't think it's the power supply, though.

Those symptoms do not sound like a power problem. If it's a power issue, usually it either works or it doesn't - more likely the system would just crash or restart, or at the very least you'd crash out of the game. Screen artifacts, or a half-working card where the video freezes but you still get audio, sounds more like the GPU is malfunctioning.

If possible, I would test that card in a different system and see if you get a similar result. If so, you know it's not your PSU, it's the card. The driver issue suggested by ko888 is also worth pursuing.
 
Solution

Melmannn

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Sep 23, 2015
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Hi guys, thanks for all the solutions. Since my last post I ordered, received and fitted a new 750w Corsair 80 Plus Bronze PSU. Yes I know 750w is a little over the top but I wanted to be sure haha. Anyway, since I have fitted my new PSU the problems have completely gone away. I have not frozen in game a single time. One thing worth mentioning (not sure if I mentioned it before) is that when I was playing before my new PSU my CPU usage would be at 90-100% so it was working really hard. But now my new PSU is in it doesn't work as hard and is at about 60-70% when playing. I haven't had any problems since I installed the new PSU and I now consider my problem solved! Still feel free to give me more advice on this thread (I'm new to toms hardware) if you feel the need to tell me anythng else. Thank you everyone for your advice!