Trouble with Fan Control (PWM)

FallOutBoyTonto · Post by **FallOutBoyTonto** » Thu Jan 29, 2004 2:36 pm

Click me for full details. (Don't want to explain all over again)

Johnny · Post by **Johnny** » Fri Jan 30, 2004 2:21 am

The MX 2 rev 1.4 has the jumper just below the fan headers or gpos 1,2,3. By default it is set to high power from the factory. I'm not sure if you need to desolder the jumper 2 as in the online manual, or if this is only to allow fans to boot up instantly at power on. It does required a steady hand and a solder gun! I've done it (first time with a solder gun!

) its fiddly but not to hard to do. It also draws power from the floppy header instead of the USB header.

FallOutBoyTonto · Post by **FallOutBoyTonto** » Fri Jan 30, 2004 8:56 am

Ok, so the jumper is in the correct position. I'm not too sure about jumper 2 yet. But I also don't want to do any soldering, although I've done it before and I'm sure I'll be able to do it properly, I'm satisfied that it starts when loaded.

I was just wondering why it won't stay on. I've tried setting minimum PWM at 50% and 75% and yet the fans still completely stop.

Now I'm wondering if I should just be happy that the fans start when its getting too warm and completely stop when its cool enough.

Miles · Post by **Miles** » Fri Jan 30, 2004 9:46 am

Check out this link...

http://www.lcdforums.com/forums/viewtopic.php?t=1465

Let me know if you need anything else!!

Johnny · Post by **Johnny** » Fri Jan 30, 2004 9:49 am

It sounds as though there isnt enough voltage getting to the lcd via the floppy connector? have you any 12v to floppy connector converters that you could hook up to a standard 12v molex connection from your PSU to the lcd via the converter? this will test if the LCD is getting enough juice through a different connector? you would at least be able to eliminate this. What is the rating on your fans?

FallOutBoyTonto · Post by **FallOutBoyTonto** » Tue Feb 03, 2004 12:51 pm

Unfortunately I don't have a floppy connector converter, did have one that came with my 9700 Pro but sold it.

I will try a different floppy power connector though. And I'll have to double check on the rating for my fans, I know they are 120mm fans with less than 1000mA current. But thats all I know for sure.

I'll also try the stuff from the link Miles posted, will post back soon.

P.S. Damn, your avatar is scaring me Johnny

Johnny · Post by **Johnny** » Wed Feb 04, 2004 4:16 am

[quote="FallOutBoyTonto"]P.S. Damn, your avatar is scaring me Johnny

FallOutBoyTonto · Post by **FallOutBoyTonto** » Thu Feb 05, 2004 2:19 pm

I think things just got worse!

Now the second line of my LCD isn't working anymore it seems. It doesn't light up, doesn't show any characters; almost as if the second line isn't getting any power anymore. I'm thinking its from the fans starting and stopping too often; as I said in an earlier post, the characters changed whenever the fans start up. Then PWM stopped them, then started again, screwing up my characters.

The first line seems to be working the same as it used to. Still getting different characters when fans start spinning. Is there a REV 2.0 yet?

I think I'm just going to give up on the PWM and just leave my fans either directly connected to molex or not use it at all.

Johnny · Post by **Johnny** » Mon Feb 09, 2004 4:23 am

sounds like an RMA!

FallOutBoyTonto · Post by **FallOutBoyTonto** » Mon Feb 09, 2004 8:41 am

How long are the warranties on those anyway? I don't really like doing an RMA, maybe I'll end up just trashing the one I have now and get a new different one. Whats this I hear about an MX4?

Trouble with Fan Control (PWM)

Trouble with Fan Control (PWM)

Damn!