Computer completely locking up during 3-D Games

mikad0

Junior Member
Jun 24, 2006
8
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I ended up stumbling across this post after a random search in Google.

It seems as if my problems are extremely similar to Sven's in that while, and seemingly only while, playing 3-D games I tend to constantly experience my computer locking up. In the time that it has been happening, which has been a long time, the occurances seem random, completely random to me at least.

The computer essentially just completely locks up and the sound appears to repeat or skip. The only way to get everything "going again" is for a nice press of the reset button on the case.

Along with a complete lock up, I always experience what feels like the computer "lagging behind" at some points. It's rather hard to describe. Everything's going fine and it suddenly starts to "skip." The entire system doesn't lock up but everything gets very "jerky" and "skippy." These are horrible descriptions I know, but it's very much like lag from online games, but experienced offline as well.

I'm assuming it's from the video card, I never experience this type of "lag" in normal 2-D work. Sometimes it never locks up at all, but it's easy to say that I experience this lag practically all the time I'm playing a game.

At first I thought it was inadequate cooling due to a crappy case or issues regarding a rather low-end power supply. Both of these have been replaced. Here's the case and here's the power supply. I did as much research as I could on both. The power supply, from what I read, is incredibly stable (per Tom's Hardware) with very few fluctuations in it's output. I love the case, it's massive and in frequently checking the air output temperature in the most untechnical way possible (my good old hand), the air tends to never be hot. After reinstalling all of my components into the case and hooking up the new power supply, the exact same issues occur so I have to assume that it's neither case cooling or the power supply.

What's logically left, in my mind, are the processor and video card. Both the CPU and GPU have the stock HSF. Being that both stocks suck, it's leading me to think that it's most likely cooling issues with the video card. The fan's loud sometimes, emitting a sound that can't be normal (just doesn't sound right). The heatsink for the CPU is littered with dust that really is not coming off very easily. I'm thinking it's time to just replace both.

Here's where all of this crap leads. I'm not confident with myself in dealing with the CPU HSF and even less with the GPU HSF. I'm sure I can end up doing it successfully, I'm essentially just afraid of losing these parts.

Neither part is very expensive anymore, but I had gotten the video card (x800Pro) very close to it's release date. The CPU's an AMD64 3400+ (Socket 754). Does anyone have any experience in replacing either HSF's? Any words of wisdom for one fearful to attempt this? My apologies for the ridiculously long post, but I wanted to make sure I didn't leave anything out.
 

RFtesla

Member
Dec 15, 2005
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I would place my bets on the GPU heatsink being off kilt or the fan dying. If you happen to have a spare card lying around I would bench the spare card for a couple of hours to see if it holds up. The GPU heatsink is not that difficult to remove usually. Arctic Cooling makes some fine heasinks with fans.

The original thermal paste on the card with have to be removed. For that you can use a high percentage Isopropyl Alcohol on a cotten swap. Just make sure you apply a very thin layer of Arctic Silver on the GPU itself when you are done.
 

mikad0

Junior Member
Jun 24, 2006
8
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Thanks much tesla, I'm really hoping it's just that as I'd like to replace the HSF's on both the GPU and CPU anyway. I love the card and I know it's able to handle a lot, but I can easily see it struggling sometimes when it really shouldn't. The only spare card I have is one from my parents old computer, but the fan's definately shot on that one.

Tesla, in your opinion, would a HSF that merely cools the card and disperses the heat into the case be better for the case I have? I've read that the Artic Cooling HSFs have fan issues, people have had lots where the fan dies out. If I'm going to end up replacing the HSFs for both the CPU and GPU I'll probably replace the case fans I have for better ones. The case is able to fit 3 120mm's, one in the back and 2 in the front. The Zalman HSFs for video cards merely disperse air, wherein the Artic Cooling ones kick air out of the back of the case (more ideal for smaller cases I'm assuming). Which would you say to go with?

When you say very thin for the amount of thermal paste, would say say about the size of a piece of rice?
 

mikad0

Junior Member
Jun 24, 2006
8
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Any ways to test if that's it too deathwalker? The same issue appeared w/ my older PSU that came shipped with the case that's now appearing with the Seasonic S12. Symptoms never really changed.
 

RFtesla

Member
Dec 15, 2005
99
0
0
The type of cooling all depends on how cool you want your card to be. A heatsink with a fan would most likely be cooler than that of a heatsink that requires airflow around it. What kind of case to you have at the moment?

If your airflow is sufficient and you have no plans of heavily OC'ing your vid card, a solid block heatsink like the Zalman would suit you fine.

When applying thermal compound a grain of rice size is usually sufficent.
 

mikad0

Junior Member
Jun 24, 2006
8
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Here's the case. Right now there's only 2 120s in it, back and front; they're stock. I'll probably grab 3 new ones as well, 1 in the back, 2 in the front. The case is massive and no, I don't OC. Any recommendations on fans? A pair of Silverstones I bought for another computer seemed very good but any recommends would be awesome. Thanks tes.

Oh and in regards to the Zalman, I was thinking about this one.