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Burn smell with Lian-Li PC65b

F

FluxCap

Golden Member
Well, I have to be honest. That was the single worst case build I have ever done. Just when I thought it would be my best...it was my worst. I smell a slight burn smell out of my top blowhole. Do new fans have to break in or something?
 
🙁

No, they shouldn't but if everything is running there is sometimes a burn-in smell (from other reports here, it would personally freak me out to see smoke and smell something burning) when installing new mobos. Are you running a rheobus of some sort? What PSU are you using? New board? I would power down and check the connectors for brown marks or short marks. Not a good idea to keep running something with faulty wiring off your PSU or connected to other components. Also, did you make sure the stand-offs were only in the spots where there were motherboard holes? If you misplaced a standoff or two, you might be shorting your board, which could explain the non-boots and possible burning smell.

Chiz
 
No smoke and a very faint smell. No rheobus. PSU is a 430 Antec Truepower. Same board I have had running for 2 weeks perfectly. The standoffs could be it, I may have like 2 extra not being used.

UPDATE:The smell seems to be fading away now.
 
If you're getting the same smell I am, it's coming from the True Power. I had the 'smell' for about a week after installing it, then it went away. Not really a burning smell per se, but an electronic type smell, if that makes sense. I even emailed Antec about it and they said it would go away and not to worry. Since then, I haven't had a problem.

Same PSU also, TruePower 430. There is a thread about the smell, I'll see if I can find it for you.
 
The only thing is I have had this PSU for 2 weeks 😕


Maybe I am just noticing it now because of the top blowhole?
 
Here's the link to that PSU burn-in thread.

I guess it went away for some people and it was OK, not so much for others.

Maybe I am just noticing it now because of the top blowhole?
Click to expand...
Possibly, the blowhole could be expelling that nice oder you've been missing out on all this time. 😉 I would still double-check the stand-offs just in case. If everythings running fine though I think you should be alright. Just monitor your voltages to make sure your PSU or mobo isn't going crazy on you.

Chiz
 
It seems to still be there this morning. Just looked at my mounting risers. There are 2 that are not being used. I tried to remove one, it will be almost impossible without breaking/scratching something sine they are the ones that snap into a square hole. Any suggestions? I am not real impressed with the risers ultimately, very cheap.

I have an Abit NF7-S MB, do you have any suggestions on where I should hook up the 4 case fans? Maybe I have something hooked up wrong 😱

I am using the Winbond hardware doctor software that came with my MB and the voltages seem to be ok. But I really don't know what ok is.
 
With the truepower your voltages should be within 3% of the voltage of the respective 3.3V, 5V, and 12V rail. Normal power supplies say 5% is normal. Since you are measuring voltages through your motherboad sensor which may not be very reliable, I wouldnt worry about it if your voltages are slightly out of spec. If you are concerned, check your voltaqes with a multimeter before attempting to RMA it or anything.

As for the fans, What type are they? Do they have 3 pin mobo plugs or 4 pin molex? I am going to assume 3 pin. If they are low speed fans (I am using very slow NMBs) then it should be ok to get Y adapters and hook them to the motherboard fan headers. That could cause problems if they are too fast and draw a lot of power however. The best way would be to get 3 pin to 4 pin adapters. SVC sells them along with many other places.

Brian
 
My rear fan is 3 pin (hooked to the MB) , my top fan is 4 pin (hooked to PSU), my front 2 fans are 4 pin as well (hooked to PSU as well). Is this a bad way to do it? I don't see anymore hookups on my motherboard for fans either AND I still have a PSU fan that needs to be hooked up for monitoring purposes.


The fans are stock ADDA fans that came with my Lian-Li (ball bearings fans). I just hate to think I am doing something wrong and that is why I get the smell. It honestly doesn't seem like a burn the more I smell it but a piece of new hardware smell. I am pretty anal when it comes to having something nice and it not being perfect. This is going to drive me crazy I can tell. I shut off my PC before I left for work today in case it burned my house down .... I don't want to live like that everyday, :disgust:
 
Your fans are hooked up properly. The only thing I would worry about is a high-RPM CPU fan being hooked up via 3-pin connector to your mobo, as fans that draw > 7W I believe have been known to short headers.

The stand-offs are quite easy to remove IMO. Just remove the rear panel and squeeze the back of them. They should pop right out the front. They're much better than any other riser/stand-off implementation I've used; if you've ever used Antec's that have the cheap screw-in stand-offs you'll know what I mean.

I don't think anything's wrong with your current set-up, I'd just remove the extra risers, sit back and relax. Enjoy!

Chiz
 
The only fan hooked up to the Mobo is the CPU fan and the one rear fan of the Lian-Li. I don't think the rear fan would cause me a problem? It doesn't push much air so I assume it is low power-drawing. ALSO, on the front fans of my case there is only one cord that branches from 2 wire to 4 wire. The case instructions don't talk about it at all so I was thinking I should do something different?

As for the risers, I don't think I am a wimp but they are in so tight that I think I would need pliers to get them out. I have no fingernails for that and if I did it might involve blood 😀 I will try and figure it out.

I mean if I did short something out I would not have a stable system like I do now, would I? My temps are the same, all fans are working, system boots as fast as ever and games are doing great. (actually hit 100fps in BF1942 last night 😀). It was just something wasn't right when I started it up last night. I think the ram got unseated a tad but then when that was ok, video went out, very confusing.
 
Fluxcap, there is a good reason why there is only 1 connector for your front fans. If you follow the wires from each fan, you'll see that they plug into the 3-position speed control, which is mounted to the front of the case chassis.

The one set of wires you connect to the power supply come from this control. It's fine, but since they are intake fans, I wouldn't plug them into the "fan only" plugs on your Antec. If you do, they'll run at 1/2 speed most of the time, which will cut down on the amount of intake air going into your case.
 
Yes! You should at least notice a difference in the sound, if you don't want to pull off the front bezel and look...
 
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