That is correct SIR.. hehe my install notes have you use the power supply from the VIDEO out header. Simply because its away from the audio. I tipicly have the POWER from the audio mod and the serial mod on the same source but FAN seperate from both AND the hard drive. As i said befor you dont want to have any noise sources on any area that is sensative. I.e. audio, serial, EVEN yes hard drive.
one of the biggest proven killers of hard drives are brownouts, If you lower the power tomuch but not enuff to make the hard drive kick out and shut down you may get incorrect micanical function's. This can cause bad sectors or other problems. You can damage IC's by not provideing enuff power also.
For an example of IC problems, a PIC16f84 is a small 16pin chip which has its own mp's or risc??? processor running at 4mhz and it can take about 9k worth in asembly CODE. because tis rewritable. But its also got onboard ram a wopping 52byts HOOOO WEEE!!!, well if the system is running some APP and you lower the power to much you can have miss fires or failed electronic pulses which are the LIFE of the system peirod!!! hence problems.
or i could hehe relate it to GENOM theory seeing as how i work in a LAB www.jax.org :) but in any case I'v made my point. tell ya what dealing with animals all day gets booring. but hay its FREE collage in bio/genetic/surgery ect.. all kinds of stuff :) and i get paid to learn collage cources on campus HEHE.
Now if I can just figur out how to silence my CAT from talking so much.
YES I KNOW my spelling is bad!! ITS also saterday night and I'm only 22 :) HIT HIT burp
Also as for using a GROUND i wouldnt suggest using the ground on the pin8 of the video port. BOTH becasue its one extra HARD thing to solder from both location and size, AND if you ever decide to use a VIDEO out hack. Well your going to get some TARABLE picture DUE to major feed back. regarless of the TYPE of fan you use. the best ground would be the outside ground. or the ground that makes up the BOARDER round the out side of the mother board. Reason being is just because its that much further away from the data sensitive areas. Now i dont know off hand if there are any components inbetween that ground and the outside ground which would mop up the distortion source? Or if there are certian areas which DO/DONT have such parts but the theory is still the same.
TURBO3 could answer that one better then i can.
I bought it from Digikey. It's a 25mmx25mm 5v blower fan that I have hotglued to the memory door (B0503PFB2-8). It's blowing up toward the Tennmax, and it's good for 12 degrees F for CPU temp.