Crazy fan speeds on normal cpu temp?

C

[CaM]Spoon

Limp Gawd
Joined
Nov 3, 2005
Messages
233
HI.
Just finished putting together my home theater pc which has some new and old parts. Im using my old athlon xp 3500 cpu on a new motherboard. Everything works fine as im using it right now. Just now im hearing my computer to be VERY LOUD. I open the case to find out my cpu fan is blazing full speed. I check in bios and my cpu temp is only 35 c.
My fan is spinning at 4326 RMP.
Now is this becuase its spinning this fast to keep temp at that 35?
Only thing i think i did wrong that scared me a bit is since cpu is a pull out i used the original cpu fan which was never used!. I took off the padding that was on bottom of heatsink and just use thermal past. Was i suppose to use both pad and paste? I thought paste was better and only had to use one. Is this my fault?

This is not my first time installing a cpu but my 4th. I know i put ther thermal and everything on right just that this was the only time i took off that padding and didnt know if i was supposed to use both.
 
Ok so doing this and i notice the cpu gets high tempurture then obviously its a installation problem of the fan?
 
If its a media center PC for your TV or something in the family room you may have it in a small box, if you have it in a small box it may have bad airflow :(

Chances are this could be the case.

I would look into getting a cheap aftermarkey fan that is nice and wide and will still fit in your case. Obviously you aren't looking for super performance from your proc so don't spend too much money.

I am sure everyone here can give good suggestions.
 
Well its actually in my room right now since getting everything set up before it goes in basement where its gonna be hooked up to a network where my xbox 360 is gonna work with it to play Hd movies and watch tv with its media center.
Im using my own computer now and im gonna hook up the media one to see whats going on and i think im gonna firmly slow down the fan manualy while in bios to see what resualts i get. If it is in fact becuase i removed the padding and did a poor job with thermal then ill remove it and re apply it with new thermal paste.


I update you guys.
Thanks so much for taking the time to answer me.

Update
Ok im using media computer now and its running at 29 degrees with a speed of around 3089 RPM. So its fine now but i guess after a while it gets hotter and fan runs faster.
I guess is bad install of fan then.
What is idle temp anyway for a athlon 64 3500?
 
Yeah its getting louder slowly by slowly.
wondering why under device manager then system it lits how much ram is on my computer but it doesnt say athlon 64 3500....
 
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