CPU Fan Alarm

I just installed a KT3 Ultra. Every time I boot the system, I get an audio alarm and a text message telling me that the cpu fan isn't working. I can see that it is, and cpu temp is stable at about 49 degrees. What is going on?

is it plugged to the board or direct to psu
some like the tmd vantc fans boards can struggle to read
just disable cpu fan detection in the bios

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K8N Neo4 Setup - Issues Adjusting CPU Fan Speed - Alarm Going Off

Building this PC for a friend, and I just got it to post. Everything seems to be running stable, only when I get into the CoreCenter, the CPU Fan alarm is going off and the speed is flashing red. It is currently running at about 820 RPM, but the CPU temp is sitting at 37'C and the sys temp is 32'C. Is this too hot, is the fan speed way too low, I'm somewhat new to this. I set it to Cool'n'Quiet and it still does it, I disable Cool'n'Quiet and try to increase CPU fan speed manually, and it won't increase. Any input would be greatly appreciated. The rig is setup as follows;
MSI K8N Neo4
AMD 64 3000+
Kingston 512MB DDR400
80GB Seagate ATA
nVidia GeForce 6600GT 128MB
Antec NeoPower 480W

You can adjust the alarm level by clicking the little red arrow(Hardware monitor option) on the right side of Core Center, move the slider for CPU Fan Speed Alarm to the left(set it to 500-600rpm), and click OK.
Now you shouldn't get alarms any more.
The fan speed and temperatures you report are very similar to what I see on my system at idle. The fan shold begin to run faster if the system is under load for some time.
Jens

Cpu fan 90B alarm and plugged in but not chragiung alarm

hi,
I have HP notebook product: b6u29pa#acj and model: g6-2101TX.
I am getting following problem:
A. while start up pc i found alarm 930B cpu fan failure and then after restarting window7 start.
B. many time when i put laptop for changing it shown plugging but not charging and led near to charging port keep on biking white colour. that time charging not happen so if i removed charger and keep on using notebook my battery level is not getting down and suddenly at one point notebook power off. That means battery getting used but notebook not getting understand and giving me battery low alarm. Then i have to remove battery and insert it again. it will work for 2-3 days n then same problem repeat.
( pl note that note book battery is good and giving 2-3 hours backup when fully charge)
Both my problem was chronic so i took photograph when problem came and then given laptop for repair at service centre as it was under warranty.
Then next day i received call from service centre that my laptop ok pl come and collect. so i went to service centre when i checked found same problem so they took back and said motherboard is faulty.
for CPU 930B fan alarm they only clean fan may be alarm will come in few days.
after 8 days yesterday i received call again from service centre that my laptop is ok.
now my question is if my laptop is not ok then what to do? as my warranty was exp. on 23.08.2014 ( i need few days for trial ) may be after replacing motherboard any other problem appear. Will HP give few days for trials?
or any government intervention is required ?

Hello @yoursviru ,
Welcome to the HP Forums!
I understand you have issues with charging and a 90b fan error on startup.
To address your question about a trial period after repair: Typically the repairs should include a 90 day service warranty or the remainder of your existing warranty whichever is greater. This depends if the repair was done by HP or an authorized HP provider. HP Phone Support can confirm this for you.
If the repair was not done by HP or an HP service provider HP cannot guarantee the work of third party companies.
The power not charging the notebook could be an issue with the battery, internal power connector cable, power adapter, or motherboard. All of which are hardware related.
You can read about the fan error here and what to do to fix it: System Fan (90b) error message on startup.
To sum everything up. I suggest you get in touch with HP Phone Support as soon as possible as they are the ones who can give you a straight answer regarding service and warranty questions. My answers are based on personal experiences, as the forums do not offer service and are available regardless of the warranty status.
Hopefully Phone Support can give you the answers you're looking for.
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
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I work on behalf of HP.

Low rpm cpu fan

cpu fan not running warning plus alarm when running a coolermaster quiet pipe cooler HHC-L61
rated fan speed 3000rpm
fan can be visually seen running from initial start up to full boot
Is there a fix ? to drop the lowest rated fan speed??
cannot find anything on the motherboard cpu fan speed requirements
running windows xp
msi 6380 le (ami bios)
amd xp 2100
1.5mb pc2100 ram
wd 120gb 8mb cache

I had the same problem and it went away with a bios upgrade.

Cpu fan speed pb on 848P NEO LS

i've just buy a 848p neo ls motherboard with a P4 2.8.
My cpu fan runs at 2800 rpm and there is no way to adjust the speed. corecenter fan speed control doesn't want to respond.
i can adjust cpu voltage and the different alarm but the fan control menu doesn"t want to open :/
i've done all the necessary update (bios, chipset ect.) with no results.
i've tried 2 different fan (intel box original) with the same result : more than 60°C when i try to play counter strike for exemple
What should i do to obtain a regular fan speed ???
Thx for a quick answer and sry for my bad english

There is no link between the graphics card fan and the CPU fan, what VGA card are you using now?
Did you o/c your system? Do a thorough clean up of corecenter from your add/remove program, delete all files related to it and re-download the software through livemonitor3 and freshly install the software.
Btw, do you have any other apps that's running in the Task Bar for detecting temps or anything similar to that?

DualCore Center CPU Fan at 0 rpm randomly ?

Hello everyone.
I recently got a new system with an MSI P965 Platinum motherboard, it's the first time I use MSI, before this I only had Soyo, Asus or Gigabyte motherboards.
System specs:
-MSI P965 Platinum
-Core 2 Duo E6400 @ 2.13 Ghz (stock speed, nothing overclocked)
-(2x) 1Gb OCZ 667 Mhz DDR2 RAM
-Sapphire ATI Radeon X1950XT 256MB GDDR3 PCI-E
-500W Powercooler PSU (+3.3v_28a,+5v_34a,+12v1_20a,+12v2_17a)
-Western Digital SATA Hard Drives WD3200KS, WD2500KS & WD2000JD
-Pioneer DVR-109 & DVD-120
-WinXP Pro SP2
My problem is that DualCore Center ocassionally pops and triggers an alarm indicating that the CPU fan speed is 0 rpm, it takes a couple of seconds and goes back to ~1950rpm and then again to 0rpm. At first this happened a couple of times while playing heavy 3D games, but I thought it might have been something related to the games so I just close DualCore Center before playing. I assume this because I've seen this kind of behavior on Asus PC Probe software in the past.
However I just saw it pop while browsing the internet and it kept going up and down so I had to close it or mute the sound.
I can see the cpu fan since the case is open and it looks ok, although I was thinking if the fan is indeed loosing power in 2 second intervals, I may not be able to notice it with my eyes.
CPU temp is around 32~34 C, System temp is along those lines as well. I think when CPU load is 100% the worst temp that I've gotten was maybe 40~42 C, but I don't think it ever got above those values.
I believe DualCore center version is 2.0, I had to download it from the MSI web site because the version that came with the motherboard Driver CD did not work.
Any ideas, thoughts or comments will be highly appreciated.
Thank you.

Don't use Dual Core Center and you will not have this kind of problem.
Whenever I use Dual Core center, alarms go off, stuff starts blinking, the system restarts or it freezes, hangs, causes strange error messages or suddenly decides that my system doesn't meet the requirements to run it at all. On very beautiful and sunny days only it seems to work fine....
As long as I stay away from that strange tool everything is fine and stable.
Dual Core Center ist not the best tool ever written and considering the fact that it causes problems on many systems, the best idea is usually to delete it and never touch it again.
What do you need it for anyway?

CPU Fan speed constantly running at 5000-5500rpms!

I have Cool-N-Quiet enabled in BIOS, AMD64 driver loaded and Power Management set to Minimal.
I know the Cool-n-Quiet is working because when I load CoreCenter it shows the CPU speed at 801Mhz.
However, my CPU Fan speed is always around 5000-5500rpms! My CPU temp is normally around 42C.
I can lower the fan speed manually to 2000rpm or so but as soon as I turn Cool-n-Quiet back on the fan speed jumps to 5000-5500.
Anyone know what could be causing this and how to fix it?

Quote
Originally posted by Tiresmoke
Also what OS are you using. I used Win 2k Pro and C&C is worthless with it.
for me it's kinda worthless in XP too. none of the settings I set (in alarm thresholds) have any effect.

HP P6203W CPU fan error on startup windows 7 32bit system

Hi there guys !
I got this HP computer for about a year now and since changing my broken CPU fan i got a CPU fan error on startup.
I have got a HP P6203W
MOBO: Pegatron Narra5
Bios: phoenix technologies 5.55 12/08/2009
I wanted to reduce some noise from my computer by replacing the CPU fan,
so i changed the original fan for a Noiseblocker-Multiframe M8-S1.
Now when i start up the computer; the fan slowly turns around , and i then got an CPU fan error before windows fired up. I can get past it by pressing F2 but its annoying to do so every time i start up. Plus I don't think the fan is turning fast enough.
I already tried checking cpu fan settings in the bios, but i have the blocked bios.
No fan settings here.
Do one of you guys have any clue about how to get my CPU fan working properly again or maybe a bios update for my motherboard ?
Any help would be very much appreciated !
thanks for your time

Hello willibrord87,
There isn't a BIOS update available for your motherboard so that is not going to be an option.
On some BIOS you have the ability to disable the system from checking the CPU Fan to avoid the error. If it's there it would be under Advanced menu and then a sub menu called Hardware Monitor. HP like many manufacturers lock out settings to avoid users changing settings to much in the BIOS so the system may not have the option. Since you said you already checked the settings I'm assuming we can skip this.
So it brings us to the motherboard. The CPU fan plug on the motherboard is a 12v connector, the Noiseblocker you have starts a slow ramp up based on this link http://goo.gl/6jsgn it says it's a start voltage of only 5v. I'm thinking that since the CPU fan is not starting up quick enough the motherboard is failing out and giving the CPU fan error. In the end the error is not a real error because once the CPU fan actually works then it's good to go.
You may want to try a different CPU fan that has a quicker spin up, or at least move that CPU fan to another system to see if it exhibits the same slow spin up.
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AMD X2 4200+ and CPU Fan

Its been a while since I've been on this forum, but I need advice on this one... I am planning on buliding a new system with a Athlon X2 4200+ (still waiting to see if AMD will sell X2 4000+ or 3800+ ). I think I'll go for an MSI K8N Neo 4 platinum board and I was wondering if the zalman CNPS7000B Al-Cu Led fit well on this particular mobo. I was also wondering if the cooling, provided by the Zalman CPU fan, would be enough for an X2 CPU?
Thanks for your help,
V
P.S. Are there any problems with the nVidia integrated firewall?

For those who wish to build a AMD X2 system, gigabyte has two fans that weight 430g (respects AMD max weight specs) and that is supposed to be very efficient... Lot of positive reviews over the web... And it is silent too
http://www.giga-byte.com/Peripherals/Products/Products_GH-PDU21-MF.htm
or
http://www.giga-byte.com/Peripherals/Products/Products_GH-PDU21-SC.htm
for now, only newegg as some in stock, but I suppose better availability soon!
V

HP PRO 3400 Series desktop won't boot CPU fan starts and stops , no video, no beeps

I have the above computer with an i3-2125 CPU, Windows 7 Home Premium 64 bit, and a 300GB Seagate Hard drive. I've had it for about 2 years and been working fine. It started acting up about 2 months ago. It would lose the date and time. I checked the battery, and it was OK, so I kept using the computer. Then on 9/15/2014 it hung on "Starting Windows", I did the following:
1. Ran the built in HP diagnostic on hard drive and memory and they both passed.
2. Tried to go to last known good configuration and nothing happened.
3. Noticed the date and time were off, replaced the battery, nothing changed.
4. Tried another hard drive from another HP PRO 3400 Series and it would boot up but could not set date in bios.
5. Tried all kinds of things but could not set date in bios.
      a. Bios date read 48/00/0048 after removing and replacing battery.
      b, Tried to reset date to 9/16/2914 and it gets 56/00/0051
6. Then it wouldn't boot at all.   So now when you turn on the power, the CPU fan starts and runs for about 1 second, then shuts off for 4 seconds, then starts and runs for another 1 sec and it does this continuously. There is  no video and no beeps and no difference when all memory is removed.
7. I removed the power supply, and checked voltages. It appears to be OK.
8. I removed the motherboard, and inspected it- saw nothing obvious.
9. I connected the power supply to the motherboard with nothing else connected to the motherboard, and I get the same thing. CPU fan starts then stops continuously, no video no beeps.
10. I am thinking it is the Motherboard, but I sure could use some suggestions as to what to do next.
Thanks
Maxgle from CA

Maxgle, welcome to the forum.
I believe that you would get more responses to your problem if you start a thread here. They are the members who know your computer best.
Please click the "Thumbs up + button" if I have helped you and click "Accept as Solution" if your problem is solved.
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Dc5850 cpu fan speeds to top speed sys then shutdown

I have a Hewlett-Packard HP Compaq dc5850 Micro tower PC, now running windows 7 pro 64-bit. That was new in late 2008. Originally it came with vista 32-bit downgrade able to XP pro 32 bit, running on 2G RAM, and 160G C drive with a 2.30 gigahertz AMD Phenom 8600B Triple-Core processor. It also has ATI 3100 integrated graphics as well as integrated NIC at 1G and integrated High def audio. In the first few months I had the system, I upgraded memory by 4G and total Disc space by 500G by adding a D drive; then upgraded to windows 7 pro 64-bit.
Overall, I have had a good experience with the PC but it has had problems while in its 3-year warranty. I did need to replace the C drive and later it original RAM devices. Yes HP did these replacements and swaps, under warranty; that meant I had 6G memory for a long time before the HP 2Gig failed out of warranty, leaving me with 4Gig now. Yes I have always had the Unit on an UPS; I even replaced the old UPS with a more powerful unit in late 2009 or early 2010 when the old UPS showed signs of failure. Now instead of serial based UPS connection it is USB.
Over the last few months I have been getting blue-screen errors of all sorts. Ranging from video related errors, Memory faults, Disc read/write failures and processor flag errors too. After numerous repair disc runs or re-install of windows, the disc read write errors wore corrected by the HP drive sanitation utility disc repair/wipe after failing the extended test. The non video ram was tested by a bootable CD of memtest86 v4 running extended test as well as MS memory Diagnostic. Both run multiple times, both passed multiple times. I was able to find a CD based video diagnostic for ATI and the Video passed repeated stress test as well. Over Labor Day I conducted these test and re-installed windows 64-bit; on the following Monday windows informed me I needed to activate windows, so I verified the correct key and called to do so, successfully.
With that background given here is the question. Recently over the last two or three months, for no apparent reason, mainly on boot the fan races to top speed and the system shuts down to protect itself. I researched this a little and found one cause to be inadequate airflow over the CPU to keep it cool; the recommendation made sense to vacuum with a computer vacuum and be sure airflow is not somehow obstructed. I am now thinking all these problems are related to the CPU temp sensor. Is it on the CPU fan or the motherboard, and can raising the fan speed in BIOS help prevent the problem, particularly if it on the motherboard.
John M Gray II

My pentium 4 3.0c stock Intel fan is 4.44 watts. Isn't the mobo designed for this?
Also, can the sys fan header have the speed sensor activated by a bios fix or is it a hardware issue where it just does not exist? If hardware, seems strange since Corecell shows sys fan.
Regards

Lenovo G560 CPU FAN stop then overheating

Hello i have lenovo G560 after i turn it on a few seconds fan working then definitiveli stops and cpu go overheating and notebook go stutdown. I try to change CPU fan but issue is there still. Sorry for my poor english. Can anybody tell my what i want to do?

hi deadbiker,
Overheating problems are commonly caused by evaporated or dried out thermal paste or dirty cooling fan. Since you replaced the fan, I recommend you remove the heatsink and re-apply a thermal compound on the CPU and GPU (if applicable). See page 41 on the Hardware Maintenance Manual on how to remove the heatsink.
If the fan still stops and the unit overheats and shuts down, the CPU might be throttling or might be faulty already. I recommend you send the unit for service (either a local repair shop or thru lenovo since they have diagnostic tools to check the unit out). Support phone list here.
Hope this helps.
Cheers
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How can i get the max rpm from cpu fan??

how can i get the max rpm from my cpu cooler regarding that i don't have a speed controller attached to the cpu fan ,,, ?? please make things clear for me
thanks

if you have not reduced it by using a speed controller either hardware or software or by the 7v mod its already going as fast as it will at 12 v dc you cannot speed it up only slow it down
need more air get a different cooler/fan

PS and CPU fan comes on merely by plugging in AC power

I am repairing a friends Athlon xp machine and have tested everything with extras.
I put a new MSI KM4M-V board in. The pc runs xp fine, etc., etc., however, when shut down the pc, Windows shuts down, but the ps and cpu fan stays on. Indefinitely. I have to either flip the on/off switch on the back of the ps or pull the damn plug.
What gives?
When I plug the thing in cold, same thing; the fans come on and then I press the start button whenever I want and the system posts and boots normally.
A motherboard Short? I checked the switch and even pulled the connector; the fans still come on when I plug it in.
Any thoughts?
Thanks.
J Romulus

Yes, I've let it run for hours after Windows shuts off, it simply doesn't go off.
Simply plugging it in or flipping ps switch, the same thing; ps and cpu fans come on automatically.
I've read all the APIC threads; if I were strictly having problems shutting down, maybe it be that. But it is so strange that it does it from a cold start.
Got to be some kind of short, or else a bad board.

24" iMac summer 2008. CPU fan runs at highest speed, some times goes to "sleep" mode. t' is about 35'- 42'C. Run hardware test: 4sns/1/40000000:tlop-130.000, next time 4sns/1/40000000:tlop-128.000 errors. Reinstalled all softwere. Nothing changed.

24" iMac summer 2008. CPU fan runs at highest speed, some times goes to "sleep" mode. CPU t' is about 35'- 42'C. Run hardware test: 4sns/1/40000000:tlop-130.000, next time 4sns/1/40000000:tlop-128.000 errors. Tried SMC, NVRAM, PRAM. Reinstalled all softwere. Nothing changed.

I suspect you have hardware problem with a fan sensor. Doing a software install will not help the machine needs to be taken in for service. If you run Apple Hardware Test in Extended Mode it should reveal the error code. If it does not then run AHT an additional 2-3 times to be sure in Extended Mode. Each pass will take about 30-60 minutes.

CPU Fan Alarm

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