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NZXT Fan Controller Losing Time

post #1 of 4
Thread Starter 
I lose a few minutes each week with my fan controller.

I have seen it mentioned by other people but never an explanation or fix. It also will occasionally beep for no reason.

Anybody experience this?
post #2 of 4
I might be able to explain why, but it's just a guess.....

The internal circuitry that controlls the time is probably a microcontroller. The microcontroller is refrenceing a clock pulse to calculate the time. The clock pulse is generated by a crystal oscillator.

I am assumeing the crystal oscillator is slightly off. This can be fixed by replaceing the crystal oscillator or by changeing the equation the microcontroller uses to calculate time.

Also, IRQ's to the microcontroller temporarily hault the code, right? Too many IRQ's to the microcontroller would throw the clock off as well.

If i am right, any fix would be extremely hard and time consumeing to do.

I know all this because I have deisgned clock circuits to control seven segment displays. X-D

EDIT: After stairing at the circuit board, i see what looks like a small battery on the back of the circuit board. This is probally so you don't loose your setting when you power down your PC. Check the battery with a volt meter to make sure it is outputting the correct voltage. If the battery was the problem, this would be a quick, cheap, and easy fix.
Edited by crimsontears809739 - 4/6/11 at 8:21am
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Deus Ex Machina
(19 items)
 
   
CPUMotherboardGraphicsRAM
i5 580M Dell 0R1203 NVIDIA Quadro FX 2800M Samsung 4Gb 
Hard DriveHard DriveOptical DriveOS
TOSHIBA MK3256GSYF  TOSHIBA MK3256GSYF  DVD-Rom HL-DT-ST DVD+-RW GU40N Windows 7 Professional 
Audio
Dell Computer 5 Series/3400 Series Chipset Fami... 
CPUMotherboardGraphicsGraphics
Athlon 64 X2 6400+  Asus M2N-E Nforce 500 SLi 8800GT  9800 GT 
RAMHard DriveOptical DriveOS
OCZ ReaperX WD LG lightscribe Multilayer DVD burner Windows 7 
PowerCase
Antec 500W Smartpower 2.0 Aspire X-Navigator 
  hide details  
Reply
post #3 of 4
I understand the Sentry LX uses a battery (CR2032) to store the saved settings. I suspect the battery is getting weak. As with all battery-powered watches, time is slowly lost when the battery gets weak.

So, if you have not replaced that battery (that came with it originally), I suggest you to do so.
post #4 of 4
Thread Starter 
The battery has been replaced, same problems. I may just take the controller and put it in a computer that I don't ever look at.
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