Just installed a Gigabyte B660m Gaming motherboard and new CPU today and can't figure out what's going on with my case fans. They've always been pretty quiet previously. Even when just sat idling it's constantly changing from quiet to loud, I tried installing Gigabyte SIV but it never starts up. In the BIOS I can see SystemFan1 fluctuating constantly between 400, 10k and 16k RPM but it's near silent when in the BIOS. I don't really understand what I can do in there to sort the issue. Anything obvious I'm missing?
New motherboard, fans fluctuating constantly.
- Thread starter CliffyG
- Start date
You can probably lock the fans at a constant speed so they are not ramping up and down but it's odd that the fan speed is reporting as jumping up to 16k as Case fan generally cap out around 1500rpm, how many fans do you have connected to sys1 and have you tried a different header?
You should be able to change the sys fan1 speed control setting to manual and then drag the points on the graph into a horizontal line at the max speed your happy with.
Yeah it could well be, I had an old corsair case fan that reported speeds all over the place so replaced it with an arctic P14 which shows the correct speeds.
So i've swapped the 2 case fans out and its still occurring, it must be either be my graphics card although unlikely as its quite noisy even with no games running or the stock cooler fan which came with my i5-12400F.
EDIT
Would be nice if I could see what's happening while windows is running rather than having to check the BIOS every time.
EDIT
Would be nice if I could see what's happening while windows is running rather than having to check the BIOS every time.
Well its the CPU fan doing it, the case fans and GFX fans are pretty consistently quiet when doing work or playing games. When a game is running though (DoTA2 in this case) the CPU fan keeps fluctuating between 1500RPM to 2600RPM and it's very noticeable when it does. Guess i need to look at a decent cooler and fan combo for it (i5-12400F). Any suggestions?
Do you have the fan headers configured in Smart Fan (in your BIOS) to use PWM control, voltage control or just left on Auto? ...I think it's worth forcing it to PWM now for the new fans you have. If you got your old case fans with a case in 2014 they are more than likely 3 pin not 4 pin anyway so they would need voltage control but the new ones you have should behave much better with PWM control and a curve you define, but there area few options you can pick, 'Silence' is faster than I set usually anyway but that could be a good place to start, I would also add some delay to the spin up time so they aren't going up and down in an annoying way every time you open something ....plus, I wouldn't tie the case fans to the CPU temperate unless you define the curve manually, I would just set them to use the system sensor, with PWM and a silent profile initially and see how it is, with a spin up delay of 3 seconds or so (provided this isn't faulty, could be a sensor fault causing this behaviour) but leave the CPU fan on the CPU sensor of course.
Edit: I just saw you update as I posted, so you have narrowed it down to the CPU fan then, ok. Is it just the stock Intel one? ..,.if so the behaviour you describe is totally normal, they have next to no mass to actually heatsoak with so the little whiney fan on them will just go up and down the RPM range like mad every time you do anything, it's the most annoying thing about them. If you are using this, may I suggest https://store.overclockers.co.uk/co...black-edition-cpu-cooler-120mm-hs-081-cm.html ...this will be more than enough to handle your chip and it will do it quietly. The issue I see here is that it doesn't come with an LGA 1700 bracket in the box, you have to send off for it ....so that's not ideal, but not many things do right now.
Edit: I just saw you update as I posted, so you have narrowed it down to the CPU fan then, ok. Is it just the stock Intel one? ..,.if so the behaviour you describe is totally normal, they have next to no mass to actually heatsoak with so the little whiney fan on them will just go up and down the RPM range like mad every time you do anything, it's the most annoying thing about them. If you are using this, may I suggest https://store.overclockers.co.uk/co...black-edition-cpu-cooler-120mm-hs-081-cm.html ...this will be more than enough to handle your chip and it will do it quietly. The issue I see here is that it doesn't come with an LGA 1700 bracket in the box, you have to send off for it ....so that's not ideal, but not many things do right now.
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I may be mis-remembering then. It's definitely the stock cooler and fan.
That'll be it then, but those stock Intel coolers are just barley adequate, even so I don't think it should be 'THAT' bad unless you are putting the CPU under an all core heavy workload, so could still be some sort of fault somewhere. Whatever the case I'd put an aftermarket cooler on that CPU, with decent mass and a decent sized fan to start with.
With Hwinfo installed, as suggested you will be able to see the sensor readouts in Windows, so we can get an idea of temperatures and fan speeds and how it's reacting etc. Without this it's hard to pass comment further really.
Well looking at that, I would say the silent profile you are using is kicking up the CPU fan at around 50c, because your temperature variation is actually very small, 49c is hot for idle, but 60c is not hot for load figure really. Even the slowest speed that fan has spun from the point HWINFO started monitoring it was 1804 rpm, so that is quite fast and will make some noise. For reference a 120MM fan on a tower cooler would cool that chip without having to spin more than 1000-1200rpm at the most under an all core 100% load and it would do it much better than that, you're idle would probably be more like 30c.
There may very well be a set of more detailed readouts from the CPU with things like T-die etc if you scroll down the sensors a bit, but if 60c is the hotest it has gone then that's actually much cooler than I expected truth be told. The system temperature has barely moved so if you're chassis fans are tied to that sensor then that's why they aren't spinning up, in reality you could take those down to around 600rpm no problem.
When you say 30% you mean total CPU load, so presumably it's loading 2 cores then, which would be why it's not gone past 60c even on the stock cooler. Again you can see that information in detail in HWInfo.
There may very well be a set of more detailed readouts from the CPU with things like T-die etc if you scroll down the sensors a bit, but if 60c is the hotest it has gone then that's actually much cooler than I expected truth be told. The system temperature has barely moved so if you're chassis fans are tied to that sensor then that's why they aren't spinning up, in reality you could take those down to around 600rpm no problem.
When you say 30% you mean total CPU load, so presumably it's loading 2 cores then, which would be why it's not gone past 60c even on the stock cooler. Again you can see that information in detail in HWInfo.