dv2000t fan noise

Ok. maybe I am paranoid but I think it is a bit unusual:

I used rmclock to undervolt the CPU and the temperature really dropped.

It stayed around 40 degree centigrate and but the fan is always on. I felt the airflow of from the vent and it is barely warm.

I am wondering what's wrong with the laptop with the fan always on. The sound is barely audible in a very quiet dorm room but it is still there and a bit annoying when I am reading.

Isn't my fan a bit paranoid to run constantly at the temperature of only 40 degree centigrade?

 

My dv6000t's fan usually runs a lot but is barely audible, the idle temp is 40c also.

Maybe try an updated BIOS, I know one was released for the 6000, and 9000 to correct a fan issue.

 

So I would assume it is normal. We have the same CPU T7200.

 

40 degress seems like a lot if it CPU isn't doing anything. I have DV9000t series and run 22c when idle. It is undervolted via NHC. If the process speeds up to 1.6ghz(maxed for my CPU) the fan will come on as the tem increases. I can force to the MAX Battery setting and the fan almost never comes on. It is slower for processor intensive tasks but the fan tends to stay off and comes on very little if and when it does. As far temps goes, it may jump up to 40 but for a very short duration.

I am running the latest BIOS that came out last month.

Just my 2cents worth.

--Mickey

 

I believe that 22c is impossible for a CPU temp, unless the computer is turned off ;-)

From what I know, 40 degrees is a normal marking.

What is your magic? I also use the latest bios.

 

what are you guys using to read the temps?

 

rmclock or NHC (notebook hardware control)

 

Darn it. I found that the overheating is caused by a process called System which takes up half of the CPU cycles. Further examination revealed that it is caused by Comodo Firewall I was using.

Not sure what's wrong with the firewall and now System process uses only minimal CPU cycles.

 

I use speedfan to monitor my CPU and HDD temps, seems to be pretty accurate.

 

What is your temp? Can you really monitor HD temp?

 

Think...I have the T5500 chipset - Maybe that is why. I am at 28 degrees right now monitoring via SpeedFan. I have NHC and Speedfan saying 28 degrees right now. I also have Core Temp beta that is saying 29.

Harddrives are running 27 and 38 respectively right now. They typically run warmer but I haven't been booted very long. I monitor this via Speedfan as NHC doesn't monitor my HDs at all. For what it is worth the second drive runs very hot and is being replaced by HP as soon as it comes in.

My system process is doing the same thing at the moment - running about 60 percent. I don't know why either. I will be rebootin(been running 5 days only hibernating when not in use) here shortly to resolve. If I force NHC into MAX Battery mode the heat stays down and fan has only come on once. Grant it, I shouldn't have to but then again the SYSTEM process shouldn't be going WHACKO WHACKO right now.

And last but not least, I am at BIOS F.15.

--Mickey

 

Mickey,

It is very hard to believe that CPU's temp can be lowered to 28 Celsius.

I think that technologically impossible.

 

HD Tune and other programs will display the HD temp, just not NHC for some reason. I haven't played around with any undervolting, and my computer stays around 44 c when idle, and sometimes kicks up to the low/mid 50s.

 

I have the T5500 also and realized that NHC shows lower CPU temps than other programs. My DV6174CL is oscillating between 28 and 38 in NHC, but in Sensorsviewpro it was 38 and 48 degrees celsius which seems to be more likely.

My fan kicks in about once every 1 or 2 minutes when internet browsing. I am waiting for the day that finally I find a program to control the fan speed to have it run constantly but relatively quiet!

 

Thank you for the input. It is possible to control fan speed if you know programming on ACPI.

From NHC's site, it points out the method to do ACPI programming. If you know how to do it, go ahead and do it.

I wish I had the skill to do it and start missing the cute fan control program of those noisy Thinkpads by Lenovo.

 

You're welcome. Since I do not have any programming skills I will need to wait. Maybe the situation is different under Windows Vista, or is the problem CPU related? It seems a lot of people do not have fan issues.

 

I really hope someone programs the ACPI file for us to use NHC too. I have a DV9000t and I can't stand the constant fans since the last BIOS update. My fans will go on whenever the computer goes above 29 degrees and sometimes stays on even at 28 degrees.

 

x0lliex:

The fan goes on at 28/29? Strange. Because there is no need to have fan on on that temp.

My fan is always on around 40 Celsius with a whisper sound.

 

These are the comments I search from this page about dv2000t, it seems that the fan is always on for these guys as well.

 

Do you think I should contact HP? My dv9000t is 29 degrees now and the fans are on about the second level up and not going off...

 

try cleaning your fan. it may solve your problem with a noisy fan.

 

Hey X - if you do contact HP, let us know how it goes. I had a DV6000 series for a few days before my dv9000. I complained about the fans(imagine that) and after a couple of support emails going back and forth, they were ready to REPLACE the unit. However, I had already had plans on returning for the 9000 so I didn't follow through. I don't think it would have helped as I have been following numerous threads similiar to this one about fans and always coming on when you would least suspect it.

Let us know how it goes...as my fans cycle on and off during the writing of this posting.

--Mick

 

Send it in to HP and let them know that there's a problem. They need to get this resolved. I had an nx7300 with the same fan cycling issue at idle. I sent it in right after I noticed it, only to get the laptop back with the same issue. The only thing they did was reghost the hard drive.

So I called em up again, and this time they promised to replace the unit. So I sent the laptop in again, and didn't hear a word back for about two weeks. Called em up again and asked to speak to the supervisor. The guy told me that they actually could not replace the unit (as this was not standard procedure) unless the issue could not be resolved by the higher level up technician. He said I would receive an email back within 24 hours notifying me of the status.

I never got an email, but I did receive the laptop back the next business day. And lo and behold, the problem is actually gone! (Yeah, I can't believe it myself either). According to their notes there was an "lcd component assembly (cables)" issue. I don't know if that really was the case (as this seems like a simple BIOS issue), but right now, I don't care. I'm just glad the **** fan isn't going schizo anymore.

So I would send it in to HP for a repair, and let them know that this is definitely not normal behavior. If you check the support forums archive on their site, you'll see this come up again and again.

Good luck!