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Graphic card problem after reassembling

mooooo
By mooooo
in Graphics Cards
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I have DELL XPS laptop with GeForce GT 425M 2GB graphic card. I disassembled my laptop in order to clean the fan yesterday and reassembled it - I have been having CPU overheating issue. After I reassembled it seems like CPU temperature is much better. However, whenever I run a graphic intensive software, it either lags horribly or doesn't even start up for some reason. My RAM is working just fine so I think it's something to do with graphic card.. Here are few things,

 

1. GPU Load is ~5% when I'm not using any graphic intensive software and ~99% when I'm using a graphic intensive software.

 

2. Temperature is ~60 normally but spikes up to ~100 and over when I run Diablo 3. CPU temperature is below 70(all 4 cores) even when I run Dialbo 3. I'm not quite sure what temperature of graphic card was before I cleaned my computer :(.

 

3. When I run Diablo 3 to test my graphic card, graphic card memory used goes only up to 300MB which looks very odd.(can high temperature be capping this somehow?)

 

4. Everything including graphic card driver is up to date.

 

Is my graphic card temperature causing the problem?

 

*all temp is in Cel 

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u dun brokded sumthin

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Sounds like as you pulled it all apart, some thermal compound is not sitting right, Did you pull the fan right out? Typically that fan is used for cooling both GPU and CPU. Maybe a heat pipe got bent? If you moved parts around and "broke" the old thermal compound, might not be working worth junk anymore and might need to re-apply.

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I checked my fan carefully when I pulled it out and didn't see any damage - this is not the first time doing this so I'm sure I did it correctly. However, one weird thing was I saw some grey silicon like glue(sticky) stuff around my CPU and GPU. It was coming off of both CPU and GPU so I wiped it out. Can this be something critical?

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