Low temp but high fan

Hi,

I would like to understand why my AW (7820HK / 1080 / 32Gb / 1To SSD) run fan à 2200 when my cpu temp is at 38°c?

Bios 1.2.1 + UV à -120mv

 

Do you have CPU performance mode on?

 

I think rinneh means "Fan Performance Mode". If you enable that it runs your fans at full speed almost regardless of temperature.

You can have CPU Performance Mode on and have Fan Performance Mode off. That's the ideal configuration.

 

Cpu performance mode is on but not fan performance.
2200rpm @ 38 degres is stupid. I Think the bios 1.2.1 is guilty

 

The new 1.2.4 released today addresses fan issues! It most likely will fix your issue.

 

Nope.. CPU performance mode on in bios will activate fan profile to aggressive mode which will keep the fans being triggered to run when it reaches a certain temp.. As far as I know the fan tends to start spinning aggressively when temps reaching 60 degree celcius.. As I have noticed your max temp is 60 celcius plus which is why your fan is spinning faster to the point that your current temp is low(30 celcius plus) but once the fan stop spinning and temps reaches 60 celcius again the fan will spin again causes a cycle and the reason why you are seeing high fan RPM.. Sorry for the bad english.. hope you understand what I am saying.. LOL

 

My bad, CPU performance mode does indeed change the profile as you've stated. I shouldn't have assumed.

I'm on 1.2.3 and below 50c I can't hear the fan. Once it starts hitting 50c even in spikes it becomes audible. 30c-40c should be pretty silent.

The biggest issue I have is after it's ramped up it takes a long time of idling to return to slower fan speeds. Hopefully 1.2.4 improves that.

 

i've been talking about this "issue" for quite some time but most people dont seem to care or notice this. as long as CPU performance is set to ON, the fan will always run at around 2000RPM regardless the cpu load or temp, which is really very annoying. not only it an unnecessary wear and tear, the noise is distracting and dont get me started on dust build up.

here is the reference http://forum.notebookreview.com/threads/alienware-17-r4-oc-vs-stock-fan-profile.803954/

 

I can understand how annoying the fans are if I were in your place.. But for my case I got the HQ processor which is not a biggy meaning no OC, less heat less fan spinning.. Hope dell make a better bios.. or hire prema then alienware will be amazing again.. hehehe..

 

In my case, I don't find it annoying as it keep system's temp not being too hot, the ambient temp is 30-35*C in my place. And I dont find it that loud enough.

 

most likely people's preference.. Yeah main thing is it keeps the machine cool.. but as alex has pointed out its bad for longevity.. wear and tear..

 

Yeah they should have called it Fan profile 2 or something. Because its in about the middle between standard and Fan performance mode turned on which is basically 100% fan all the time.

It is a nice profile though if it would be possible to turn the fan on only from 60c or something like that.During normal productivity my CPU never reaches higher than 60c so in that case it would be a silent system.

 

There's always the option of making your own curve in Hwinfo64 but I agree it would be nice to have proper fan control from Alienware.

 

So... i update the bios to 1.2.4 or not to solve thaïs problem ?

 

After bios update i put manualy PL1 & 2 at 0 with custom O/C. Fan runs @ 1400!
Somtimes @ 0!

So its PL limit and not cpu performance thé problem

 

Hmm, with 1.2.3 my fans were off in desktop during light tasks, but I had occasional BSOD issues due to the Intel fixes I guess (had none with 1.0.8 before that). After upgrading to 1.2.4, the CPU fan seems to be always on, 1800 RPM minimum.

I'll try to set the PL levels manually, hope that would help.

Edit: Whiole it did bring the theoretical option of 0 RPM when nothing is running, running an internet browser brings the fan to 1800, even 2300 RPM which is definitely audible and annoying. I wonder if it's possible to revert to 1.2.3 because I'd rather have rare BSOD's than constant fan noise?

Edit #2: Nope, 1.2.4 is locked as well and it's not allowed to go back to 1.2.3. Crap. Is there a way to mod the BIOS and move the 1.2.3 fan tables to 1.2.4 update?

 

I'm on latest BIOS, released 18Feb.

So far, just idle and light workloads fans don't even turn on and CPU is under 50C.

 

I've read the fans default to 2300 or something when performance mode (overclock) is on. If overclocking is turned off it should be lower (too lazy to test right now).

But man you guys are sensitive to sound... 2300 is barely a hum for me. My computer's audio is enough for me to forget it.

 

1800 is a hum, 2300 is borderline annoying as I had silence earlier and I'm mostly in a dead quiet environment so it makes a big difference to me.

Interesting. Mine is only at 0 if nothing's running. As soon as I have a browser open, it goes to 1800 RPM and stays there with temps in mid 40's.

Edit: I notice it is still mostly kept silent in the other Win 10 installation (I have two) and I presume it might be due to the Intel Dynamic Platform and Thermal Manager (which is installed there, but not in the other OS) which seems to keep the CPU at lower clocks as the temps are at high 30's. I'll try to install that in the other OS and see what happens, but I didn't need to have it before this latest BIOS update to keep the fans off at low usage and temps.

What I did notice with the new update is that the fan speed changes seem to be more finely controlled with steps of 100 RPM's per second at lower RPM's. It would be great if HwInfo64 would implement such a behavior for this EC when jumping between their fan table levels.

 

Well, the other installation had the 8.2.X version of the Intel's Dynamic Platform driver, while I installed the latest one (8.3.X) on my gaming Win 10 installation. What's weird is that the 8.3.X setup is only 15 MB compared to 80+ MB of the 8.2.X so perhaps it doesn't contain everything required. The 8.3.X version did bring *some* change when installed on its own as the fan speed went from mostly 2300 RPM (annoying) to pretty much constant 1800 (noticeable, but not annoying).

In any case, after removing the latest one and installing the 8.2.X version, I have the same low clocks (and mostly zero RPM) at low usage as in the other installation so I'm happy with it. I'll try to install the 8.3.X over this one to see if it will work.

 

Okay, the reason why yo have high fan speed it is because you have the Power Limit 1 set too 100W which triggers a fan profile that wont go lower than 2300rpm, no matter the loads of the cpu or gpu.. Alienware has it like this. if the Power Limit 1 is higher than 45W, that fan profile will be triggered and there is no way to turn it off unless you turn of performance mode. and honestly it is annoying because you want to get the best out of the cpu but the fan noise makes hard to do... so, I developed my own tool to get around it, and if you're interested, go take a look: http://forum.notebookreview.com/thr...-keys-tool-for-r4-17-r3-15-with-k-cpu.813397/

 

It is misleading. Where do you get this information about wattage levels and fan profiles they trigger?

I'm running my AW17R4 7820HK at 120W all the time and when my system isn't loaded with some heavier stuff, fans are completely disabled.

And you still didn't bother to share the source code of your tool. I wouldn't touch it outside of sandbox or virtual machine.

 

My CPU Performance options in the BIOS are disabled as the CPU at 4.0 and voltage -100mV offset doesn't seem to break the 60W power limit so there's no throttling related to that.

I've tried setting the power limits to 0 earlier as suggested, but that didn't help me with the 1800/2300 fan speed at low usage.

 

I try your solution and it’s a good solution.

 

Here is the prolific skeptical kid again and no it's not, if you

Dude your skepticism is becoming annoying, you acting like I need proof of every single sentence I make like I don't know what I'm talking about. You're saying you have both power limits on your Alienware notebook to 120w and fans are idled that is a big lie and imma tell you why... the reason why alienware/Dell made that the fans speed wont turn of when the power limit 1 is higher than 45W its because it is a notebook and 45w is the chip factory power limit "you can see on Intel's database " so when you overclock to let say 4.0ghz, it will need more wattage and more voltage which equals to more heat, and since it is a NOTEBOOK and alienware knows that it can overheat they make sure that even if the power limit 1 is set to even 46w the fans will run more aggressive and never stopping. Because they don't want people calling them saying that their system broke after overclocking or things related to that.. to sustain an overclock power limit one has to be set high in the bios and that triggers that fan speed... and that's the reason why I created my tool, so I can overclock with xtu, change the power limits with xtu and not deal with that super annoying fan speed and sound, specially when I'm in college... so now you should understand why I made the tool you so much cry about and fear so much, like hey I made it for myself and for people like the OP here , likes to overclock his product but don't want the bad fan noise, that was the reason for it and if you don't want to use it I really don't care, you're the one missing out.

 

Don't even want to comment.

I'll just leave this screenshot:

Spoiler: PLs @120W, fans 0 RPM

 

But you're not using the Bios to set the power limits, you're using XTU.. through the bios you will get the highspeed fan profile dude.. you think you can fool me to prove your point.. a fan max speed of "0rpm" yea okey you used the hwInfo fan control tool to do that so get out of here with your lies... thx

 

Yes, I'm not using BIOS to set PLs. But what is the difference? Shouldn't the system be aware of this?

Well, if you really think that I went so low and making this up - don't judge others by your own deeds. I can be wrong, but do not lie. And I am pleased to admit my mistake, if it has a place to be.

It's you who is spreading some shady tool without sharing the code. And I wasn't the first who asked for its source, and not the last one. Also you're bragging with your great OC and didn't even bother to show the results of any benchmarks or gaming sessions, though you have time to spill this nonsense here. Well done, impudence is not an offence, it is a blessing for you.

I wouldn't be continuing this dialogue, but I want people to be cautious with characters like you.

 

" setting power limit through the bios is what set the fan issue the op is complaining about " damm dude I understand you get your computer infected very often on this forums but this is just incredible paranoia. And you keep asking about codes, there is none , you're like dumb or something. And I'm not bragging, I'm sharing my findings to whomever seems to care, I certainty don't. You say it is a shady tool because there's not source code "not because you tried it", I explained why there's none and you continue looking ignorant but that's the last thing imma say

 

on my alienware 17 r4 one fan spins up and the other fan never even when gaming but then sometimes the fan decides too completely turn on