Delta Fan Mod

By: Goodspeedd

Back to Archives

I just thought I would drop you a line to tell you of a nice EASY fix I worked up for all you peeps with burned up fan headers on your MOBOs from those 7200 rpm fans. It seems that some certain 60mm fans that spin in excess of 6500rpm (You know who you are:-) pump to much current through the positive leads on the motherboard fan headers. When this happens, you effectively lose the functionality of the RPM sensing software that allows you to monitor the state of your CPU or video card fans (BAD!), not to mention the fact that your fan stops running altogether. (MORE BADNESS!) :-) What I am focusing on here, first and foremost, is the fan header for your CPU fan. Keep in mind that this FIX can be used for any and all fan headers that have the positive lead on the motherboard burned out.

The first thing you have to do is identify the suspect fan header/s on the motherboard

"See how TOPLESS Barbie is pointing to the culprit that won't let us see how fast, or even IF our fan is spinning"

Next, we address the fan header.

 "Hello fan header."  "Hello Barbie!"**

**(Sorry, I couldn't help myself:-)**

 

Next, lets take a look at the lead on one of our fans.

"Yours should look something like this"

Now We can see that there are three wires in a lead that has rpm sensing capability.  The black wire is ground (-), the red wire is positive (+), and the yellow wire is the rpm sensing wire (Tach).  Seeing as how some of those 60mm fans spinning at 7200rpm and beyond tend to burn up the positive (+) lead on the motherboard, I will show you an easy fix.

            First you round up a suitable target rifle.

 

 

"Counter strike Barbie.  Coming to a toy store near you."

  Then you set the motherboard with non working fan header at 600 yards.  Adjust for the wind............  Take convection currents in to account........and........  OOPS, sorry guys/gals.  I was writing that for a different website.  I must have been playing to much Counter Strike, AGAIN and forgot to put my toys away.  :-)  Lets get back to business, shall we? (Note to self; "Put H&K Target rifle AWAY before wife gets home.":-)

            Now where was I?  Oh yes, the fan lead.  What you want to do is remove the RED (+) wire from the plug at the end of the lead.  We are going to hook this up to a YELLOW (+) wire on one of the HDD\CDrom power leads.  When you have that done, plug the fan lead with the remaining two wires back on to the motherboard header.  This will supply the fan with negative current (-), and rpm sensing capability (the YELLOW wire *Tach*).  Here is what it will look like when you are done.

**CAPTION "And to think, you could have done this LONG ago"**

            Not to shabby 'eh?  When you are all finished, you will once again have the ability to monitor your fans RPMs in BIOS, and Windows.  This will give you peace of mind yet again that your CPU fan is spinning as it should.

"Well look at that, 7123rpm.  Can you say, "I'm in business."

OIA NOTE: I'm responsible for this pic looking crappy. Goodspeed is responsible for the rest...lol

  As always, if you are a MAROON, MEDICATED, or have trouble OPENING a beer can, try this at your own risk.  All the rest of you shouldn't have any problems.  Now go crack open a cold one and get started.

Pros

+Allows you to walk away from your PC again for more than 30 seconds without worrying that the CPU fan will shut down.

+You can once again use REALLY KEWL programs that will AUTOMATICALLY shut down your PC in the event of fan CATASTROPHE.

Cons

-You actually have to get off your LAZY ASS and do it!

-You probably don't own any H&K Target rifles. :-)

 

 

            This has been GOODSPEEDD reporting to you LIVE from the grizzly depths of my own personal cave.  I now return you back to your regularly scheduled programming.  :-)

  Top - Back to Archives