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Easiest Way To 12v The Fans!


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#151 xbox360dude

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Posted 22 February 2009 - 10:10 AM

How abut putting a switch like this....

note that I have used my xenon(broken) mobo cauz my zephyr is locked up. So lets assume tht as d3A1

IPB Image

So when the switch is off it runs in the normal mode(automatically switches)
and when it is on it will run at 12v

I am a noob but will this work



#152 fredrow

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Posted 15 March 2009 - 09:52 PM

I hope this thread is not dead yet..........

I have a Xenon motherboard, not sure what version.

I have the whissperMax fan that I want to install, and have them hooked up to a 5K pot like I read in this thread. So I plan on using the transistor on top of the board. From what I have read is this right......

RIGHT pin of TRANS to LEFT pin of POT.

MIDDLE pin of TRANS to WIPER(middle) pin of pot.

So here is where I am stuck, do I run the RIGHT pin of pot to ____________?????
(Is it the ground of the fan's?????)

Thank you in advance............



#153 tabooplatypus

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Posted 22 April 2009 - 10:09 PM

i blew out my transistor. i tried removing it but that turned out to be a silly idea. i couldn't take it off. didnt know how. i have one of the newer systems could i simply wire the fan to a 12v spot? or what would you recomend?

#154 lenselijertje

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Posted 30 May 2009 - 05:14 PM

the 5v point doesnt work on jasper motherboards, it already gives 5volt in standby mode, so the fans are always on, even when i dont poweron my 360.

is there another 5volt point on top i can solder to so i can run my delta fans always at 5volt?

#155 TK-101

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Posted 31 May 2009 - 03:15 PM

Just done the CPU fan for now.
I need to buy a smaller soldering to do the GPU.


#156 TK-101

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Posted 03 June 2009 - 12:19 AM

You can. I have done my CPU fan and i just recieved my small soldering iron to do the GPU fans?

Edited by TK-101, 03 June 2009 - 12:20 AM.


#157 Hum4ngus

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Posted 07 June 2009 - 02:37 AM

Hi!

Did the fan mod tonight, i can already tell one or both fans are using 12v.
I bridged it exactly like this:
http://i12.photobuck...7/12vbottom.jpg

Does this mean that both fans run at 12v or just the GPU?

Thanks for the tutorial and help!

#158 quincer

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Posted 16 July 2009 - 07:53 AM

Looks like both fans should be running at 12v.

I just did mine, it runs really cool, but it is loud!

Does anyone know if this will work? Seems like a quick and easy way to get 9v if 12v seems too loud.

IPB Image
12v to 9v

#159 TehBanStick

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Posted 03 August 2009 - 12:11 AM

Would this setup work for a 2-prong toggle switch to turn the 12v on/off? (Top of Xenon)
IPB Image

#160 Kurt Hectic

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Posted 18 September 2009 - 10:18 PM

Someone asked a question one page earlier, but didn't get the answer.
I've got the same:

Do I need to bridge both, one on the top, and one on the back of the mainboard or just the top one?

My xbox overheats and gets 2 lights after some time, so I'll have to cool it down a little.
I think my only option is to make it run on 9V.

#161 mikesnowdon

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Posted 21 September 2009 - 02:36 AM

QUOTE(quincer @ Jul 16 2009, 07:53 AM) View Post

Looks like both fans should be running at 12v.

I just did mine, it runs really cool, but it is loud!

Does anyone know if this will work? Seems like a quick and easy way to get 9v if 12v seems too loud.


12v to 9v


Or:


Buy a 7809 regulator (get the TO-220 type) and some heatshrink tubing and wire. Solder a couple of wires onto the 12v and 0v (GND) point right under the mobo power connector. Take 12v and 0v wires to the input and GND pins of the 7809. Take wires from output pin and GND pin of 7809 directly to fans (don't have the fans connected to anything else but the 7809!). Use the heatshrink tubing to cover your connections. with soldering directly to the 7809 pins be sure to use heatshrink to insulate the pins/connection. Even better build it up on a little bit of stripboard.

Edited by mikesnowdon, 21 September 2009 - 02:39 AM.


#162 John182

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Posted 04 November 2009 - 04:21 PM

which one of the connectors on the top side of the xenon board is + and which -?

IPB Image

because i want to connect those and with an switch i'll be able to turn the 12v off/on for both fans...

regards

#163 syntaxerror329

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Posted 08 November 2009 - 03:56 AM

I have done the 9 volt fan mod twice now. Both times it was to a Falcon Motherboard.
First time it worked mint. Even sent grim a thank you message. Second time I thought I found a even simpler way to do it and it failed.

Here is a picture of what I did.

IPB Image

So first time I connected a wire from point A to B. I used a Lenline fiberglass brush to remove the laminate from where I soldered and it worked mint. My fans ran at about 8volts and that was perfect.

Second time I took a look and noticed the same thing could be done by just joining point C and D together with a drop of solder. They connect to the exact same circuit. Only thing was this time the fan speed did not change. It was at about 5.6v and U1F2 got really hot. (thankfully I noticed and powered it off before something bad happened)

Also the first one I did had a Delta fan and the second one had Nidec.

So am I correct joining point A & B is the same as joining C & D ?

C & D was simpler cause i could just drop a solder blob there.

Is there some boards this doesn't work correctly with? Like I said they were both Falcon (HDMI with 175w)


Any input would be greatly appreciated.

Thanks


#164 Grim187

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Posted 08 November 2009 - 05:52 PM

@syntaxerror329 i will take a look in to that when i get some free time, i havent traced the lines of the fans that far and dident even know they where up there.

QUOTE(Hum4ngus @ Jun 6 2009, 05:37 PM) View Post

Hi!

Did the fan mod tonight, i can already tell one or both fans are using 12v.
I bridged it exactly like this:
http://i12.photobuck...7/12vbottom.jpg

Does this mean that both fans run at 12v or just the GPU?

Thanks for the tutorial and help!

if you did it exactly like that then both fans run at 12v.


QUOTE(John182 @ Nov 4 2009, 07:21 AM) View Post

which one of the connectors on the top side of the xenon board is + and which -?

because i want to connect those and with an switch i'll be able to turn the 12v off/on for both fans...

regards

if you want to do a switch use the bottom side of the board, i cant remember which ones are 12V and which ones are to fan on top.

QUOTE(Kurt Hectic @ Sep 18 2009, 01:18 PM) View Post

Someone asked a question one page earlier, but didn't get the answer.
I've got the same:

Do I need to bridge both, one on the top, and one on the back of the mainboard or just the top one?

My xbox overheats and gets 2 lights after some time, so I'll have to cool it down a little.
I think my only option is to make it run on 9V.

if your getting 2 red lights your heatsink(s) probably isent on right, check those then either do the top or the bottom image (i think the bottom is best).

QUOTE(lenselijertje @ May 30 2009, 08:14 AM) View Post

the 5v point doesnt work on jasper motherboards, it already gives 5volt in standby mode, so the fans are always on, even when i dont poweron my 360.

is there another 5volt point on top i can solder to so i can run my delta fans always at 5volt?

you should be running that +5 back thru the ground of the fans so they shouldent be on when the console is off (because there polarized), i will post a better point (altho farther away) for +5 that is switched when i get some time.

@everyone if your not getting your questions answered here feel free to pm me or im me on aim; Grim1873

Edited by Grim187, 08 November 2009 - 05:55 PM.


#165 Deveant

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Posted 09 November 2009 - 07:09 AM

just want to shout out and say thanks, applied this to the two points on top of the Xenon, and now shes running a treat, 2hs into a movie and still hasnt overheated, much better than 5min after boot. Thanks Grim187.




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