computer lagging after 40 mins

[theSoldier]

My computer begins to shows signs on lagging after only about 40 mins of computer use. It lags about every 2-3 seconds and isn't too bad at this point. But after that it just keeps getting worse with the lag occuring at larger durations to the point that I have to restart the computer. This wasn't a major issue before since I used the computer only for Word and the Internet...but I recently just got back into multiplayer gaming and it definately annoys the crap out of me.

I'm running on :
Windows XP professional
Asus motherboard/case
AMD Athlon 64 3200+ (939 socket)
1 gig of DDR 400 (PC 3200) ram
Integrated Radeon X300 based graphics (64mb)


Any suggestions would be helpful. Or if I should provide more information about my system then I will do so.

Thanks

 

[kitty500cat]

Did you try different RAM? It could be a RAM problem. What power supply do you have? It could, maybe, be a power supply issue.
hoping to help
kitty500cat

 

[theSoldier]

I have not tried any other ram besides this.

I have a stick of 512mb Kingston and a 512mb of Corsair.
http://www.newegg.com/Product/Product.asp?Item=N82E16820145026
http://www.newegg.com/Product/Product.asp?Item=N82E16820141424

My power supply is a 300w located at the newegg website here:
http://www.newegg.com/Product/Product.asp?Item=N82E16856110043

 

[theSoldier]

Anyone have any input?

 

[theSoldier]

anyyyyyyyone?

 

[gbhall]

try each in turn

I have not tried any other ram besides this.

I have a stick of 512mb Kingston and a 512mb of Corsair.
http://www.newegg.com/Product/Product.asp?Item=N82E16820145026
http://www.newegg.com/Product/Product.asp?Item=N82E16820141424

My power supply is a 300w located at the newegg website here:
http://www.newegg.com/Product/Product.asp?Item=N82E16856110043

Obvious thing is - take out stick 2 of ram and run a few minutes (or hours) to see if the problem is still there. Then (if not) replace stick 2 with stick 1 and repeat. There's a remote possibility the two sticks conflict (not being the same make) and the timing between the sticks starts to drift over time.

Also 300w might be a little light on the power side. You could try monitoring the CPU temp - your mobo will support this - check the manufacturers site for how to do it.

To me, this all could be CPU to heat-sink bond 'sweating'