BSOD while playing Dota 2

[avatarv2]

The cpu test was clean, but the GPU memtest returned a lot of errors on OCCT.
Here's the generated graphs:

 

[x BlueRobot]

Update your System Specifications with Speccy, and then copy this information into your System Specifications: Go to your UserCP, and then select Edit System Spec in the left pane. Copy the information from Speccy into the required fields. These System Specifications will then follow your every post.

It seems you may have a failing or faulty PSU, do you have another PSU to test with or a friend's to borrow for testing?

 

[avatarv2]

Unfortunately, I don't have a spare PSU for testing, nor one I can borrow. is there any other way to check if it's the PSU's fault?
(updated my pc info on the cp, thanks)

 

[x BlueRobot]

You could run this additional test for the graphics card, which will rule out the possibility of the graphics card also at fault:

• http://www.sevenforums.com/tutorials/100356-video-card-stress-test-furmark.html

I recommend about 1 hour of testing.

Thanks for completing the specs, and how old is your PSU?

 

[avatarv2]

Oh, I already run that one a couple times, without any problems (got used to testing graphics cards with furmark since I was sold a faulty one not too long ago).
So can we assume this could be a psu problem? Could you recommend a wattage for my setup? I've been under the suspicion that mine could be a little short (650w)
I bought this psu around spetember of last year, so around 8 months by now

 

[x BlueRobot]

According to the Nvidia website, your graphics card requires at least 450W, I would recommend 850+W, however, I'll ask what others would recommend, here's the specifications for your card:

• GeForce GTX 660 Ti | Specifications | GeForce

 

[essenbe]

avatarv2, In many cases it is not the Wattage of the PSU it can depend a lot on the Quality of the PSU and the amps on the +12V rail. Personally, I prefer a single +12V rail. That way you don't have to be so concerned on how you split them up. I don't know prices or what is available where you are, but I always recommend Corsair, Seasonic or Antec PSUs. They are more expensive, but very high quality and will put out the volts they say they do, unlike many of the cheaper brands. Your system should run OK with a 750W PSU of one of those brands.

 

[avatarv2]

Thanks for your advice.
I'll try to save up a little and get a corsair 750w PSU next month.

 

[essenbe]

Are you overclocking? If you overclock the CPU or GPU, it can cause memory errors and BSODs.

 

[avatarv2]

Well, the graphics card model itself is factory overclocked, here's the reference link:
ASUS - GTX660 TI-DC2OG-2GD5

 

[essenbe]

Usually factory overclocked is perfectly stable, so shouldn't be a problem. I'm just wondering about the GPU memory errors. Have you run Ungine Heaven 3.0 or 4.0 or Mark 3D 11? Try running those with Ungine set everything to Max values and run Mark 3D 11 in the preset performance mode. Mark 3D is a paid program, but you can use it for a 30 day trial. Ungine is free. They will pretty much max your card out. Also, you should be using temp monitoring programs and set fan profiles for your card to keep it below 70°C. The Keppler cards will throttle at 70. Keep a close watch on your GPU temps and CPU temps. I am sure Asus has a utility for fan profiles as well as temps, or you could use MSI Afterburner and use Core temp or Real Temp for your CPU.

 

[avatarv2]

Ungine 4.0 gave me a score of 877:
FPS:34.8
Score:877
Min FPS:14.1
Max FPS:87.8

 

[essenbe]

avatarv2, did you use the custom and set everything to max or the preset ultra?

 

[avatarv2]

I set everything to the max, and used windowed mode

 

[essenbe]

I think you came out pretty well. Take a look at this. It's the last few pages about Heaven 4.0 the rest are 3.0. When you look at the scores look at the presets and system specs.
http://www.sevenforums.com/overcloc...-your-unigine-heaven-benchmark-scores-29.html

 

[ICIT2LOL]

avatarv2, In many cases it is not the Wattage of the PSU it can depend a lot on the Quality of the PSU and the amps on the +12V rail. Personally, I prefer a single +12V rail. That way you don't have to be so concerned on how you split them up. I don't know prices or what is available where you are, but I always recommend Corsair, Seasonic or Antec PSUs. They are more expensive, but very high quality and will put out the volts they say they do, unlike many of the cheaper brands. Your system should run OK with a 750W PSU of one of those brands.

Yes mate and look for the 12v+ rail amps rating that is the main thing I look for - you can work out the watts by Ohms law so 12v (+) rail volts X rail amps = total watts
EXAMPLE ONLY - side sticker says 12v at 32 amps so 12v x 32 amps = 384 watts. The other rails also can be worked out to give you a total wattage but the 12v rail is the main consideration.