I wanna ask how to power normal 120mm fans outside the casing without using a psu?? I wanna cool my modem and External HDD

It would be rather hard to do so ...

basically if u know how to assemble molex connector and wires for case fan then u could make the wires long enough for u to cool off the modem....

of course it source power from PSU but at least it is safer and required no work of eletronic circuit board.

I think you can use extra PSU to power up the 120 fan. let me check first..forgot where i read those info. Have u seen the kedai power-up many˛ fan at their shop? the idea is same

get a dc adaptor (usually max 12V) n get a regulator to regulate it to 12 since dc adaptor low load at 12V still gives out 16-18V that would shorten the fans life.

Make urself a regulator, would cost sumwhere....rm5 with dc adaptor rm10.

Yea, guess that's wht he wanted 2 do act. Not using another PSU

Use USB lor...more elegant.

http://pinouts.ru/data/USB_pinout.shtml

Most fan should start with 5V. Besides...those applications don't need so much fan muscle.

Another way to tap from the the modem's AC in jack.

last tym i saw at Robyncom, they haf this "4-female molex" device dat is attached using USB..then all the fans were attached to dat device.. a real bling bling there esp when ya molex connector is a LED molex. uhuhuhuhu. but sadly, i didnt pay much attention to dat device, other than juz a device act like an power extension to the fans..

For me get an extension molex adapter. The longest you can get! Find some hole in the casing you can go thru and get another Y splitter and you can even fix 2 fans. My previous CRT Monitor was cooled by 2 80mm casing fan using this idea. Always keep "blue tag" handy, it will help alot. I just tag the casing fan on my previous CRT without even using any screw and it work wonders.

just get a cheap psu la. rm30 like tat and you're good to go. making extension wires are risky. you dun want to stress and also short circuit the psu. more over, the longer the cable is. the less effective power transfer you're gonna get.

worse come to worse go Carrefour and get a table fan to blow on those items. RM39.90 case solve and lots of air too.

Bah .... expensive and the cable mess..

Worse comes to worse.....should go for this!!! Wireless solution.

Ahahahaha Batteries included sumore. Gogogo.

wahahahah sniper on the roof, u realy left me wif a great laughter laaa.

p/s: anyone seen dat small device @ Robyncom dat i was toking about?

I have use this to cool my modem. But in 20 minutes time, the batteries already kong.

wire it to an adapter. if not fan it with a fan like those satay seller

Or can get a a big ventalation fan like the "Char Kuey Teow" seller. Thats good and effient too.

ahahaha, so now we got three solutions ar?

-wireless fan by sniper
-kipas satay by Vervain
-ventalation fan lyk BOTAK Char Kuey Teor by xetajones

I wonder if there's any drawbacks using 2 PSUs to power up diff things for ONE CPU.. er, other than the increase of electric bills ar..

I've found a solution but wired madness. I used a transformer adapter that powers 12volts into sum extensions and powered up fans. It can oso power up anything else using a molex connector. I took out molex from a Y-splitter to use and it works fine