Cryo LX - Voltage Misconception

So....after burning up a second electronic board on the Cryo LX when trying to power it with a 12-volt adapter, I have decided to do some testings. When "by-pass" the connections to directly supply the fans with 12volts....I realize that the fan speed had no improvement over the 5v before all these modifications. So with IN = OUT connection now (through by-pass of the electronics in between), I switched the adapter to 5v and the fans ran terribly slow. Then I told myself, if the original setup was really 5-volts max. output at the fans' end, then they would have run this slow, which isn't true. There must be a voltage converter in between.
With the third electronic board sent to me today....I started to do some test and measure the voltage output at the fans' connection end. With the adapter setting at 6v., I can get an output of 11.86 volts !!!

6.0v ---> 11.86v
7.5v ---> 11.92v
9.0v ---> 12.12v
12v ---> a third mistake ---> burned smell....

So what's the conclusion? NZXT's engineers had already planned everything out right. They fed the boards with 5 volts initially, so that we all can make use of the USB ports. Then they convert the voltage up to 12 volt to run the fans properly without interupting the USB connections. So those who keep insisting others to go out and buy a 12 volt adapter, please STOP that and save NZXT from keep sending out new electronic boards!! Because the Fans are already operating at Max!!

man....I don't know what to say to NZXT now to request for another board

 

You buy it.

 

sigh....seems like so, unfortunately.

But don't forget - I sacrificed myself to save the next Cryo LX owners

 

I'm surprised you were even able to get a replacement board at all.

OOPS fried your circuits, new board pl0x?

Kudos on the research though.

 

Oh god.

 

Im not sure whats the deal with your LX, but i have ran my LX for more than a year on 12v, never ever i have seen smoke, burn smell or anything related, still works as it used to, and there is a significant increase in RPM runing from the stock 5v to 12v. Then again they might have changed the boards or changed something inside the circuit.

If you still have trouble avoid the circuit all together, the inside fans are 3pins, you can get 3pin to 4pin and buy an external 12v brick and connect it avoiding all cyro circuits.

This is not true in my case, the fans run very slow on 5v, when i changed the fans to Sflex i tested both on my desktop mobo, and the ones that come on the Cryo are 1900rpm runing at 12v, while the sflex i installed were 1600rpm. Maybe they changed the circuit inside, but i doubt it, maybe the psu provided is 12v or malfunctioning... idk, but in my case there is some serious jump in noise and air flow when using 12v psu over the supplied 5v. When i get a chance, ill make a video of running the cryo with both psu.

 

Abula, the numbers I provided were measured using a voltmeter at the fans' end, not assumptions. So may be they have changed the board?