What do these Speedfan readings mean?

[AJAX]

I downloaded speed fan because I have been lagging lots in a game that I never lagged in before, im not sure if my vid card is going bad, or mobo or what. I will attach a picture of speed fan, if anyone knows how speed fan works and what all the readings mean, please let me know, becuase I have not a clue. thanks

 

[samsarmi]

you can try everest instead... i used to rely on speedfan for a time- and it's temp readings can be quite off. Note that this can be deadly if it reads it much lower than actual temps... i believe everest ultimate edition is downloadable from c/net website.

 

[bazz2004]

There's something wrong especially that negative figure for the graphics card. As advised try running a different program to Speedfan. There's HWMonitor which is free. That 3497 rpm for what's probably the cpu fan looks very high. Mine will only go up to about 2500 max when things are running very hot. Of course it all depends on what hardware you have.