Jump to content
Sign in to follow this  
Big Fat Duck

Is it possible for fans plugged into motherboard to slow down cpu perf

Recommended Posts

I noticed that, after installing 3 yate loon fans onto the motherboard headers, the fps in my games were all crappy.. im talking like 10 fps slowdowns in BF2 max at 1280x960. I just now unplugged them and put them on the psu lines and i think my fps is back.. is the fans on the motherboard a possible reason for the slowdown or am i just imagining things?

Share this post


Link to post
Share on other sites

no, unless you're fans for some god awful reason draw an insane amount of power, i've got a ultra-d with panaflo 80mmx3 plugged in running full blast, plus custom chipset, and have no problems

Share this post


Link to post
Share on other sites

YES!

 

Especially if they are high speed fans. The current required to drive the fans has to come from somewhere on the motherboard which means it isn't going to the CPU and RAM when it needs it most.

 

By moving the fans off of the motherboard you are taking the load and putting it directly on the PSU which is where it belongs.

 

The motherboard headers are only good for about 25watts.

 

Ask THunDA about the bad fan that took his rig down.

Share this post


Link to post
Share on other sites

This is helpful as I have 1 of my 80mm panaflo's running off of the MB and when I first hooked these up I noticed that I was not stable at 2.55 anymore, so I had to drop down to 2.5. I recently up'd my CPU voltage to 1.6v and everything is ok at 2.55 again. Before I was running 1.55v. Needless to say, I will be buying a 3 pin to molex converter tomorrow to run off PSU and not MB.

 

Here is the fan I'm using, which I bought 2 and I had 1 converter already, so I just used the second 3 pin on the MB for the second: http://www.newegg.com/product/product.asp?...N82E16835180085

Share this post


Link to post
Share on other sites

but is it possible for the stolen electricity to decrease the performance of the cpu... ive always thought that if a cpu doesnt get enough voltage it would just crash

Share this post


Link to post
Share on other sites

Voltage is analog to the CPU. That's why you can increase voltage and increase the stable clock speed.

 

but is it possible for the stolen electricity to decrease the performance of the cpu... ive always thought that if a cpu doesnt get enough voltage it would just crash

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...