CPU Whine on M1330

I've started noticing a high-pitched whine today, and something intermittently makes a vibrating sound. I think I may call dell tomorrow and try and get them to sort it out, may not depending on what happens to the noises.

 

I JUST receieved this new replacement w/ A07 bios and it still whines...

Thanks for the tip, but I really don't want to open up my m1330 just to fix the issue

 

Also having this problem with my M1330.

I did the RMClock fix with the popdown/popup and it took away 90% of the whine. It comes once in a while but is as frequent as a hard drive access and much more bearable.

 

This worked for me as well. No more whining (except for the girlfriend!) for my Vostro 1700.
It actually disappeared completely and not only reduced.

 

Code:

ok... I'm almost able to reduce the noise to a complete silence (other than HDD noise). I've even set HDD to Acoustic mode just to make sure I didn't make a mistake.

What I noticed about the characteristic of the Santa Rosa processor (on M1330) is no matter what you do to the bios it's still going to whine a tiny bit. Here's what I did:

1) Restart comp from vista
2) press F2 when the Dell screen loads (wait for the words "Press F12 or F2 for boot menu" to appear before pressing F2)
3) go to performance tab push the right key (expand the tree) make the follow adjustments

Intel Dynamic Acceleration : off
Intel Speed Step: Off
Hard Drive Acoustic : silent (optional)

you may still notice the whine is there but it's been reduced by half and that's pretty much as quiet as M1330 can get bios tweaking.

What sort of effect do these changes make on the system? any slowdown? any battery draining..any effect at all..what exactly am I changing is what i want to know...

 

turning off speedstep and dynamic acc would yield less batt life because the computer will not lower your cpu clock speed when it's idle.

is that the only way to fix the whining??

 

I recently purchased a dell with this same issue, and I even had it replaced, but unfortunately, the replacement had the same affliction: the dreaded cpu whine! I've found however, that updating the bios to the current A09 significantly reduced the whine, and it actually went away completely when I went and unchecked the power management of the Bluetooth under the Device Manager. Hope this helps someone out there?

 

how exactly did u do this? i cant figure out how to disable that bluetooth power management..thanks

 

I got Penryn and the whine come and go...

 

I got a Penryn T8300 as well. Whine is really loud sometimes but is not very frequent. Not frequent enough to bother me now. Using Bios A09.

 

oh well.....at least it should give u some more battery life.....lol

 

Is the whine all the time? Does your fan run all the time?
Is there a way to change it?
Are there any vibrations with your machine? I'm trying to decide
if I'm being to darn picky?
Thanks in advance.
Jane

 

Right click Computers > Properties > Device Manager > Bluetooth Radios > Dell True Mobile 355 Bluetooth + EDR, click the Power Management tab, and uncheck "Allow this computer to turn off device to save power."

 

Long time reader, first time poster here.

I also purchased a 1330 with the T7250 and experienced the whine. I tried all the fixes I read on here (disable speedstep, dynamic acceleration, bluetooth always on, etc.) I did not try RMClock because I too didn't want a software solution to a hardware problem.

I chatted dell support and linked them to this discussion. They agreed it was a problem and had a tech install a new motherboard and processor. Now, I already had the A04 motherboard, but they put a new one in anyway with BIOS Rev 06. Before the tech came, I had updated my BIOS to the new Feb 8 release of Rev 09, and that apparently causes problems (and doesn't solve the whine), so DON'T DO IT! (Makes you wonder why it's a "recommended" update on the dell support site...)

They paired the new A04 motherboard with a free upgrade to the T8300 processor, and knock on wood, so far no whine.

Thought I'd let all of you know.

Will update if things change.

 

Wow, no whint on the t8300?
What about any vibration low grade , always there?

 

I thought I had no whine, yesterday I was on a power supply and A08 BIOS. Didn't hear any whine.

Today I took it into work (updatedto A09 yesterday) and I notice it on battery power. It's intermittent. T9300 as well.

Not really too fussed but it'd be great if there was a solution.

 

There is solution. Install a bluetooth card.

 

This will probably help... but the real problem is the cpu switching between sleep state... a bluetooth card might keep the cpu from doing that as often so it sometimes fixes the problem.

From my reading on this subject the two most direct solutions are either using rmclock to disable the 'hop up' mode of the power management, keep swapping out computers and mother boards until you get one that doesnt do it or turn power management off in the system bios.

Right now im using rmclock but like others im not thrilled with solving a hardware issue with software... although im not 100% sure its a hardware issue but rather in the software implementation of the hardwares capabilities. For example UBUNTU 7.10 has no whine at all when running on my machine while vista whines most the time without rmclock running.

Alchemist

 

Where can I get RM Clock?

 

Are there anyone who got a replacement that doesn't whine? Cause I figured that since the sound is so highfrequent everyone can't hear it, so it might be that it's on all units, except all people can't hear it.

 

Where is this hopup option?

 

Yo,

I have been working on a few of the M1330 notebooks for a customer of ours and so far I've come across 1 with faults.

The first things I noticed were a few build quality problems. The brushed metal section on the left hand side does not sit flush to the plastic below it, the end of the hard drive bay does not sit flush against the rest of the plastic around it and a small corner of what seemed to be paper was sticking out between the top and bottom case join, just above the headset connectors.

The other main fault was (you've guessed it) a high pitched whine once I turned it on and booted it into Vista. I checked the BIOS version and it is A09. Dell's website lists a BIOS version A10 available for this notebook so I might download it to see if that helps.

The Motherboard revision is A04, and the heatsink revision is A01. I have seen images that compare the old A01 heatsink against the newer A04 (I think) and the A01 seems much better. I have no heatsink fan issues, so maybe they reverted back to the original design because it has a larger size.

Anyhoo, I installed RMClock for the first time and looked at the following site for config guidence: http://forum.tabletpcreview.com/showthread.php?t=3516

Changing the 'Pop up' option instantly fixed the problem, but the CPU speed for both cores in RMClock were being displayed as 1.2GHz. This notebook has a dual core 2.0GHz CPU and I really don't want to have to limit the speed of it's CPU like this, but I don't know if it is just a setting within RMClock that is doing it.

Please can anyone give me some info on how to configure RMClock so that it doesn't limit the CPU speed? Even on the Max Performance profile, it kept the CPU at 1.2GHz.

Thanks for any help.

 

It is RMClock limiting the speed (it's a feature). Make sure the processor type is set to mobile before you do anything else and see if that fixes it.

 

Thanks for the suggestion.

Setting the CPU type to Mobile doesn't fix it - The CPU still reads as running at 1.2GHz. I also suffer from the same problem with RMClock as other users I've read about where it will not run at startup in Vista, even though the option to do it is ticked.

 

I believe I have sorted the problem now, without using RMClock. I re-checked the pPower Management tabs for the network/wireless/bluetooth in Device Manager and noticed that I had missed the bluetooth module. Once I unticked the option, the whine went away.

 

That's another tweak but never letting the bluetooth module idle uses up a lot of battery.

 

Stop wondering about the motherboard... is a processor issue as I see it. Here are the facts:

1) if you put your ear next to the system, as I did, on any part you can hear the whine.
2) issue only occurs while on windows, as I booted to diagnostics from the CD and it was not there, and also during windows setup screens while booted on the CD doesn't whine, as well on a Live CD of Ubuntu.
3) issue happens when the computer is idle... for example if it is not doing anything and you decide to open Word, the moment the processor is opening the application whine stops, when it finishes it comes back.
4) as far as I remember... right after installed windows with no drivers, whine is not there, it comes up after you install certain drivers, can't recall if it was the Chispet driver or the nVidia driver.
5) doesn't happen on safe mode.

I got the motherboard replaced first because it was about the REV version, and same issue happened after the replacement. They replaced me the processor with the same I had, and same thing. They replaced the heatsink, and same thing. I asked for another processor (had a T5250 - Merom) and got a T8300 - Penryn and the noise didn't disappear at all, but it was much less noisy than it was before...

Conclusion... as far as I can see all leads to the processor...

 

I have a HP Elitebook 6930p with the exact same issue. Only the CPU seems to whine when it throttles up OR down. I took it apart and disconnected almost all the hardware piece by piece except the DVD rom and the HDD yet it still whines. If you take apart the keyboard to expose the hardware, its very obvious that the whine comes from the CPU. In my case, its a P8600. The funny thing is I came to this thread since I was seeking a M1330 as a replacement but it seems that its just another whiner. This is getting disappointing. It seems however that the whine is associated with certain motherboards. Those manufactured by Foxconn seems to be a likely connection between different manufacturers whose notebooks exhibit the whining problem.

 

Okay since you digged up a rather old thread, let me give you a quickstart:

The CPU whining is present in almost any Centrino and Centrino2 notebook. It certainly depends on the CPU and the mainboard and there are some that whine only a little bit and some those whine more. If you have a notebook that doesn't whine at all: Then there's something wrong - in general this kind of notebook has broken power management.

Even MacBooks have this feature:
http://www.appledefects.com/wiki/index.php?title=MacBook#Idle_Processor_Noise

The official Dell explanation is this one:
http://support.dell.com/support/top...d=0A7D5CD2E17F5125E0401E0A55176204&doclang=en
which is technically not that bad compared to others.

Besides what Dell suggested as fix there are other fixes. I examined and explained some of them here in section ii) CPU/Chipset Whining Stop - choices and side effects
http://forum.notebookreview.com/showthread.php?t=276661

Your choice what to do.

 

I had a Centrino Asus M6BNe notebook with the Pentium M CPU and I'm sure it didn't whine, or maybe it was so soft that is was inaudible. I also went to check out a few notebooks that my friends were using and the Fujitsu or even some other HP with Core 2 Duos did not whine when using different power management profiles. This leads me to believe that the whine may only be present when coupled with certain motherboard configurations, or that it may be louder in some notebook models.

But thanks for the link. The Dell one was excellent for further reading.

 

Sorry I wasn't precise when referring the centrino platform and whining: That's true - I never had CPU whining with the Pentium-M platform (Sonoma) either. The recent Centrino (Santa Rosa, ...) platforms have deeper CPU and chipset sleep states (C4) and draw more power when not sleeping. It's the gap between low and high power states that causes the whining.