yo shah.... u think u can make a fan controller to control the FFB1212EHE?

3.0A

Actually I have a 4.0A prototype ( ) fan controller that I build for fun. But I never tested its full potential. Don't have any powerful fan with me. The most powerful I have is an NMB 120mm fan that suck 0.35A

But when you start playing with higher amps, the heat load gets bigger and you'll start seeing big heatsinks attach to the regulator.

Seduce us!!!

Show us that so called prototype!!!

well....ive got FOUR Delta FFBs for u to test simultaneously dude.... see if the controller can handle all of it at one go

EDIT: forgot to ask....

is ur prototype pwm based or is it based on voltage reduction? can make pwm based ah?

This post has been edited by mADmAN: Sep 9 2006, 12:17 PM

Regarding your last question on how to get 9V.....

You can use a 7809 voltage regulator. This regulator can supply max 1A, so it should be fine for your fan.

I'll put picture of the prototype later (bateri kamera habis).....but the design is not that efficient

I use a voltage regulator. I can build a pwm based for sure but a bit "leceh". Why suddenly want to use pwm??

coz voltage regulator might not work with the FFBs i have... i tested the fans and they work at 7v... but 5v mampus... was wondering if PWM might be able to bring it lower...

besides.. i was reading online that pwm doesnt produce as much heat as regulator

Oh...in that case, it should work for your FFBs since we are turning the 12V on and off. We only control the frequency but the voltage will always be 12V.

But 4 FFBs......3A X 4 = 12A

aiks?? sweating??? why la?? better make it 15A just to be safe man... give some extra room

u think it can be done ah?? can getthe right materials from jalan pasar?

This post has been edited by mADmAN: Sep 10 2006, 12:30 PM

Yeah can be done and components should be available at jalan pasar. But a single channel with 15A.....that's like building an amplifier already

The best method is to build a 4 channel controller with 5A each so you can control the fan individually. A little bit faster on the CPU but a tad slower on the HD.....keeps everything cool at the right speed

eh eh...not 15A per channel la bro... i meant 15A combined

but 4x5A (= 20A ) is better huh? hehehehhehehe..... anyway...me got a project for u one of these days if ur willing.

will PM u when i can think of the specifics

15A sure drains the psu a lot....lol!

Yeah...
15A...

It sucks half of my psu amps...

15 amps alot wor. 13amps household plug oso can kill ppl..........

Some update!!!!!

Bought a Gecube 9550XT 128mb card this week and the card arrive yesterday. Today the card look totally different

The Vgpu and Vdd have been modded


Vgpu


Vdd

Now with more Vdd, we'll need some extra cooling on DDR2 chip right





The GPU will be watercooled.......cheapo syscooling kit

wow! issit a chipset heatsink? u cut it wit hacksaw? lol

w00t!!! benchies dude!!! BENCHIES!!!!

Gila la ko ni shah...

Aku tau, tu ko potong dari amd stock heatsink kan?

Taknak tunjuk heatsink GPU ke?

I cut those ramsink from a cpu heatsink I bought for RM5 at lowyat second hand shop.....dunno what the heatsink is for
Benches later, need to sort out somethings first. It seems the GPU is not a really good batch.....need a lot of voltage to get up to speed
The DDR2 is preety good. It's a Samsung 3.3ns ram rated at 300MHz. At 2.0V, I manage to squeeze 340MHz out of it artifact free.....with the help of my monster heatsink.


@sHawTY
GPU is watercooled.

huh???? 3.3ns?? damn.... and 340 only?? i managed to get 425 highest with my old 9550 on infineon 2.8 ns WITHOUT vmod man .... after vmod tak sempat as u know what happened la

im still tempted to send my 6800 to u for vmod man.... at least if burn then can move to PCIe... but no moneyyyyyyyyyyy

EDIT: shah.. remember my 9550 heatsink?? any idea how i can use it ah?? feel sayang la the heatpipe no being used... cant think of anywayy to fit it to my NB and cant think of other uses for it any thoughts?

This post has been edited by mADmAN: Sep 18 2006, 01:12 AM