Video card story

J-M v2.5.5

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Since roughly sixteen months I am the satisfied owner of an XFX 7800 GTX. The card has always performed well for me, even though it can get quite hot.

Recently, though, the card got a little bit too hot. I was used to roughly the following temperatures:
- Idle: average 58 °C
- Load: average 80 °C
- Load: max. 81 °C
- Highest ever reached: 84 °C
A temperature of 84 °C is quite hot, but apparently temperatures around 80 °C are somewhat standard for high-performance videocards like this one. And the critical temperature is 115 °C, according to the nVidia ForceWare drivers. I have my alarm temperature set at 84 °C.

However, last week the card reached 86 °C in a game of Call of Duty 2 and later even 89 °C so I was starting to get a little bit worried. I restared my PC, tried again, and the card still overheated.

So I figured I had to clean the fan. But the fan was relatively clean. Sure, it was a bit dusty, but most things inside a PC are a bit dusty. I unscrewed the shiny metal plate on top of the videocard and noticed huge 'dust fluffs' (not sure what the correct term is) between the fins of the cooling block, so I vacuum cleaned the cooling block.

I screwed the shiny metal plate back on again, installed the videocard in my PC, and started Call of Duty 2 again and everything was fine. The videocard didn't sound the alarm, so the alarm temperature of 84 °C wasn't being exceeded. I didn't really check the actual temperature, though.

Today, however, I was just browsing the internet without listening any music, so the only thing I heard was the ambient buzz of the fans in my PC. Suddenly, there was even less sound. So I looked in my PC (I have a transparent side window) to see if all the fans were still going. The temperature of my videocard (which was idling) began to rise so I figured it was the videocard fan. I couldn't see it at first, because the fan is pointed downwards (as you'd expect in almost every PC case) but indeed, the fan of my XFX 7800 GTX had stopped rotating. I was all like "God damn it, I hope I didn't break it when I vacuum cleaned it" and thought of methods to solve this problem.

I tried "kick-starting" it with a pencil multiple times, but that didn't do any good. As the idle temperature of my videocard rose to 79 °C, I figured I'd restart the PC and see if the fan would start rotating again.

Fortunately, it did. But I figured I'd load up a GPU-intensive program to stress my videocard and see what temperature it would reach. So I started the "Azure Temple" Quest3D graphics engine demo and I waited a few minutes until the temperature didn't rise anymore.
The results were quite surprising:
- Load: average 61 °C
- Load: max. 65 °C
- Highest ever reached: 65 °C
Then I checked the idle temperature, which appeared to be:
- Idle: average 43 °C

Now compare that to the original temperatures:
- Idle: average 58 °C
- Load: average 80 °C
- Load: max. 81 °C
- Highest ever reached: 84 °C

That's quite an improvement! But I wanted to stress my videocard even more. I figured I'd do so by running Dark Messiah at maximum settings.

Before I cleaned my videocard, I ran the game at the following settings:

Resolution: 1280 * 1024
Model detail: High
Texture detail: Medium
Shader detail: High
Water detail: Reflect all
Shadow detail: High
GFX Detail: Medium
Anti-aliasing mode: None
Filtering mode: Anisotropic 2X
Wait for vertical sync: Disabled
High Dynamic Range: Full (if available)

These are the recommended settings for my system. I completed Dark Messiah multiple times using these settings, and in some scenarios I'd still lag to death with only 12 FPS.

Anyway, I wanted to stress my videocard, so I maxed the few settings out that weren't maxed out yet:

Texture detail: Very High
GFX Detail: High
Anti-aliasing mode: 4X
Filtering mode: Anisotropic 16X

If you set the texture detail to "very high" and the anti-aliasing mode to "16X", the game actually warns you that you need at least 512 MB of graphics memory. My videocard has 256 MB of graphics memory.
Anyway, I ignored the warnings, made sure every setting was maxed out, and loaded up a map that's quite large and has lots of stuff that needs to be rendered.

The lowest amount of FPS I got was 30! And before I had cleaned my videocard, using the recommended settings for my system, I averaged out on 20 FPS in this particular map! And the maximum temperature my videocard reached while playing Dark Messiah was only 64 °C!

I never figured that vacuum cleaning a videocard could have such a huge effect. I guess I'll have to do this more often.

Also, can anybody link me to a program that's very demanding in terms of graphics so I can stress my videocard a bit more? I'm talking about something as demanding as 3DMark06 or perhaps even more demanding.

Anyway, the moral of the story is: (vacuum) clean your graphics card often for great justice!

Edit: And no, I still have no idea what caused the fan of my XFX 7800 GTX to suddenly stop rotating. I'm just hoping it doesn't happen again.
 

Blasto121

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nothing will stress your video card more than the latest 3d benchmark, but if you really want to stress your video card then, try enabling coolbits for your nvidia driver and over clock your video card!

then try running the some tests, see if you can get more performance out of it.
 

The Man In Black

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Sounds like you may have had some fan belts loose on yer search engine. Pop open the hood and have a look. :)
 

Shurik3n

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Those warnings are just to scare you into pouring money into a hardware update. My friend's 7 year old PC can run oblivion and stalker at maxed out settings with moderate FPS (60) even though the games tell him his computer will explode if he tries it.
 

Fadda

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Yeah I tried the same thing. just with my CPU fan on my last computer.

Too bad I forgot to clean in the other time tho, my CPU got fried in such a way, it had burned itself into the motherboard, so when I took it out, I ripped the motherboard in half with the CPU hanging onto the other bit.. Crazy shit to do. And damn did I go sad.

But yes, the cooler the graphics card, the more smoothly and performing it will go. Pretty sexy, yes? (L)

And Shuriken, yeah that's true, my old P3 could run doom3 with all settings maxed out with average 60 fps, but the warnings are really a good way to make money, if the dumwitted reads them :D
 
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J-M v2.5.5

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Blasto121 said:
nothing will stress your video card more than the latest 3d benchmark, but if you really want to stress your video card then, try enabling coolbits for your nvidia driver and over clock your video card!

then try running the some tests, see if you can get more performance out of it.
Yeah, I was going to try overclocking indeed. The current frequencies of my videocard's core and memory are 450 MHz and 1250 MHz respectively and it should be able to handle 490 MHz and 1300 MHz.

The Man In Black said:
fan belts loose on yer search engine
...?

Shurik3n said:
My friend's 7 year old PC can run oblivion and stalker at maxed out settings with moderate FPS (60) even though the games tell him his computer will explode if he tries it.
Wow :oldshock:

Fadda said:
And Shuriken, yeah that's true, my old P3 could run doom3 with all settings maxed out with average 60 fps, but the warnings are really a good way to make money, if the dumwitted reads them
Double wow :oldshock:

Fadda said:
Too bad I forgot to clean in the other time tho, my CPU got fried in such a way, it had burned itself into the motherboard, so when I took it out, I ripped the motherboard in half with the CPU hanging onto the other bit.. Crazy **** to do. And damn did I go sad.
Sounds like that CPU of yours needed better cooling before it died :p
My Pentium 4 HT-550 (frequency: 3.40 GHz) is being cooled by an Arctic Cooling Freezer 7 Pro, which I can definitely recommend.
 
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