Problems with fans

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squizoob

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Sep 19, 2017
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510
After playing around with overclock settings on the MSI Afterburner program last night, I decided to just settle on resetting the settings to stock and just shut the computer off. Turn the computer on today and after playing a game for an hour or two I get fps drops. Check the temperature and it's higher than normal. Open up the case and notice that the CPU cooler fans aren't spinning, as well as my front bottom fan. Also, the debug LED light trail to sys_fan 3 is lit up (where my bottom fan is connected to). I did not change the core voltage settings on the program, as I could not and I probably wouldn't anyway. So now I'm worried. Did my OC damage the motherboard, or is this something else?

Also, I'm not sure if this happened today, or not, but I did notice the computer was running a lot more quiet today compare to normal.

Components list:
Motherboard - MSI Z270A Pro
PSU - Cooler Master G650M
CPU - Intel i7 7700k
GPU - Gigabyte GTX1080 Windforce OC 3
RAM - Corsair Vengeance LPX 2x8gb
Cooler - Noctua NH D15
Additional fans - 2x Noctua NF12 Industrial PPC, 1x Noctua NF-A14 Industrial PPC

I didn't mention the storage since I don't think it has anything to do with what's happening. The PSU is more than enough for the computer, so I'm puzzled as to why all of a sudden the sys_fan 3 and CPU fans just stopped working. Any help is greatly appreciated.

Small update: I just realised that the MSI Afterburned program doesn't work well with my GPU, since I just tried to change fan speeds on it and it didn't do anything. However, the AORUS Gigabyte utility for my GPU does change the settings. So I'm not even sure if anything I did last night on the MSI program even mattered/applied. So why exactly did my fans just stop working out of the blue?
 
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Yeah I mean your cpu_opt works and sure you can plug your cpu fan into it instead, and you can unplug the fan from a sys_fan 3 header and use 4 or 2 or 1 but for this to happen on a new system is not a good indicator for the mobo quality in general. MSI is good brand, I have it personally, but even with these you've got silicon lottery. Also, in better mobos you have fan header surge protection etc. so that if something does go wrong, it doesn't spread across your board.As it is right now, you only see issues with fan headers, but who's to say something else hasn't been affected that you'll only end up seeing 3 months down the road. If you're within warranty (and you should be), I wouldn't think twice about it. Contact MSI, explain that...
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Sedivy

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The utility for fans on the gpu should come from the manufacturer ie. gigabyte. MSI afterburner is for msi gpus as far as I know.
The MSI program you want for control of case fans while in windows is called command centre and you should be able to get it from your mobo's support page.
 
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squizoob

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Sep 19, 2017
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Yes, I'm aware of that now. Hence the update. I don't want to control the case fans, I want them to work. So far, one of my front case fans doesn't work (connected to the sys fan 3 slot) and the cpu cooler fans aren't working either.
 
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Sedivy

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Dec 17, 2016
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Ok first to get them to work at all, check whether your fans are pwm or votage fans (dc). They require different handling by the board or else they won't work. The one that came with NH-D15 will be pwm. The rest of your case fans need to be checked.
When you restart, go into bios, then into fan setup. For the two cpu fans, the PWM option should be selected by default. Make sure it still is. Also set the curve so it's not just a flat line but actually responds to temp changes. You can drag the temp points until you're satisfied. Repeat the process for all your case fans, while making sure you're selecting pwm/dc correctly for each.
 
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squizoob

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Sep 19, 2017
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Okay, I'm convinced you never even read my post since you're just posting useless crap now. The settings are at PWM all the time, it's just not working. The degub led light trail is glowing and pointing at sys_fan 3 where my front bottom fan is connected to. I can't see if it's pointing at the CPU_fan slot as well, but it's not working so I assume so. They're not spinning. They won't spin. What the hell is wrong with them.
 
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Sedivy

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Dec 17, 2016
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I've read your post fine. You don't seem to understand mine.
If fans don't spin, it can be a few things. Burnt out fan header, faulty fan, or faulty setting. You go from easiest to check to harder things to check when troubleshooting.
Meaning, first thing to check is whether the fan header is set to pwm or dc. If the fan is dc and header is set to pwm, or vice versa, it might not work. Hence my warning to check. If the temp/rpm curve is not set, but is a flat line, and at 0 RPM, fans will also not work. So check.
Next you'd check the fan itself by plugging it into a different fan header. And then if the fan is working, you'd suspect the mobo in which case you either swap headers, or double up some fans on another header if the other one is dead. If you don't have extra headers, you rma.
 
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squizoob

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Sep 19, 2017
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510
I can't try this now as I am tired and too stressed out right now. However, my fan curve was already present, PWM was already set, and they weren't running. So you're telling me to switch headers. And if that doesn't work, I rma? What is rma? I'm sorry for being an idiot, but I need that to be explained by the time I wake up. Your patience in dealing with my stressed ass is greatly appreciated.
 
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Sedivy

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Dec 17, 2016
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3,960
Ok if all looks good in bios, try switching headers. If there is a single fan header working, unplug whatever is in it, and try plugging your fans one by one in it, then turning on the computer, just to see if it'll spin or not. Seeing as your cpu fans aren't working, don't keep it on longer than a second or two, just enough to confirm it's spinning. It's unlikely 3 of your fans suddenly went down simultaneously but check for thoroughness sake on at least one header you know for sure is working.

RMA means return/exchange within warranty time. Basically they replace your mobo for you. I checked the iPPC fans from noctua and they're still well within the amperage limits of the fan headers (1A typically, higher on some boards that support liquid cooling). If more than one header went down, there might be issues with the motherboard in which case that's a manufacturing defect and nothing you did. They're obliged to replace it if within warranty time, which considering the components, you should be.
 
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squizoob

Prominent
Sep 19, 2017
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510
Okay, here's an update. I plugged my cpu fans into pump_fan header instead of cpu_fan. They work. So the cpu header works. As for the sys_fan 3 header, I unplugged the fan from it and the led light trail was still lit up. Must mean it's broken. So now what? Do I take out the mobo and ship it to MSI, or what?
 
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Sedivy

Estimable
Dec 17, 2016
2,315
0
3,960
Yeah I mean your cpu_opt works and sure you can plug your cpu fan into it instead, and you can unplug the fan from a sys_fan 3 header and use 4 or 2 or 1 but for this to happen on a new system is not a good indicator for the mobo quality in general. MSI is good brand, I have it personally, but even with these you've got silicon lottery. Also, in better mobos you have fan header surge protection etc. so that if something does go wrong, it doesn't spread across your board.As it is right now, you only see issues with fan headers, but who's to say something else hasn't been affected that you'll only end up seeing 3 months down the road. If you're within warranty (and you should be), I wouldn't think twice about it. Contact MSI, explain that you only had one fan on each header and they suddenly went down without any special event (storms, power surges), and that you want rma.

Just in case that there are outside factors that may have contributed, like improper grounding on your wall outlets or any power surges, get a cheap power bar with surge protection included, and plug both your computer and monitor into it, instead of directly into wall. This is just paranoia maybe, but should there be any voltage/current issues, this simple solution can save you a lot of headache and money down the road, and result in simple shutdown instead of fried components.
 
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