CPU whine on M1330 with Penryn?

I bought an M1330 2 months ago and I love it except for the CPU whine. It's been driving me crazy since the day I bought it (T7250). After a lot of phonecalls to Dell they finally agreed on me returning it and getting my money back.

They did offer me an upgrade to Penryn T8100 though.

Does anyone out there have a Dell M1330 with a T8100?? Is there any CPU whine or is it history with Penryn?

 

did they offer u a free upgrade..im thinkin of returning mine kuz of the whine and also the technician butchered up my laptop after 3 screen replacements..if they offer a replacement with an upgrade to penryn ill consider keepin it.......what did u say? and do u by any chance have their ext. # or the number u called?

 

sorry for my ignorance.............what do u exactly mean by cpu whine.....(i have the same processor) ???

 

if u dont hear it..dont worry about it!

 

anyone with the new penryn plz let us know.

 

phatty033:
I currently live in Japan so I was dealing with Dell over here..

 

Echo that. I'd love to know if the Penryn solves the whine issue.

 

I think all notebook reviewers conveniently avoid this issue. This is important to consumers, we would like to know when a laptop whines.

 

i v got a penryn one, and it sure whines....

 

That is bad news! I was thinking about buying a 1330, but since I have good hearing I know the whine will bother me alot. My last hope was the penryn, but since that doesn't solve it, I guess I'll have to look for another laptop.

By the way, is it the CPU cooler that whines, or another part?

 

Which processor do you have?

 

It looks like you have the T9300.. for some reason some hardware combo's whine and some don't.. that sucks.. I went with the slower 5400 rpm drive and the slower T8300 processor hoping it doesn't whine. will see how it goes...

 

When will you get it?

 

ETA Feb 19th but hopefully will arrive sooner.

 

The whine has nothing to do with Dell or which CPU is put into a machine. It hasn't been solved in years and doesn't have any common variables to assist in determining what system will have it and what will not.

It has been present in all makes and models since 1994 and sometimes goes away and, as with my sons Compaq most recently, appeared after 6 months of ownership.

There are ways of reducing it and, with a system of mine, sometimes just dissappears. It is created through a combination of all the components and their power consumption from my experience.

To give you an example, when testing with Dell on my M1210 2 years back, we determined that all the parts put in separate systems functioned properly and no squeal was present...to include the processor. When they were put back as a whole, the squeal started again. When we exchanged parts such as the DVD and HD and RAM, we found the level of the noise always changed.

Sorry but just trying to clarify for those new with this...

Also, my best piece of advice is not to look for it. Bring your system to someone and just give it to them in a quiet room and ask what they think of the system. See if they notice any whine. This sound is such that sometimes you actually hear a high pitch noise that really isnt there because it, or the thought of it, is so easily imaginable.

I am certain that their are several instances where it was no more than a ghost sound after extensive reading about it here.

After all...its been in all systems since 1994 and none have been able to rid themselves of it..yet it has hit NBR in epidemic proportions.

Aaaah...the MacAir commercial again...They probably have tons of sales through this song in the commercial alone...so catchy.

 

The CPU whine appears to be coming from the CPU's when they enter C4 power saving mode during operation. That is the reason why it appears more when the notebook is running on battery than when running on AC power.
I myself have very good hearing and there haven't been one notebook so far with Core Duo/Core 2 Duo/Penryn CPU's where I haven't heard this CPU whine. The only way this could be fixed was be disabeling C4 power saving mode and that would result in shorter battery time, which no notebook manufacturer would be happy with.

 

The CPU whine has nothing to do with the CPU Power States?
I don't think that's true.

Official Dell Response:
http://support.dell.com/support/top...d=0A7D5CD2E17F5125E0401E0A55176204&doclang=en

http://www.ideastorm.com/article/show/72814/Fix_CPU_Whine_On_Intel_Systems

I think what's happening when you change other configuration options is that it changes when the processor goes into the low power state. But the processor is the real culprit as acknowledged in the official Dell article.

Quote from Dell Support Link Above:
"The noise has been isolated to the processor’s power circuit and is only audible when the processor is in C3 (clock-stopped) power state. In C3 power state, notebook power is conserved resulting in reduced overall chassis heat and extended battery life. The varying voltage changes to the components in the processor's power circuit are caused by a phenomenon referred to as the piezoelectric effect. When a specific varying voltage is applied to these components, they begin to resonate producing sounds that fall within the frequency range of human hearing (15 – 20 KHz).

Intel architecture-based processors operate in various power states (referred to as C states) ranging from C0 (full power) to C1, C2, C3, or C4 (lowest power states).

C3 and C4 are low power states in which the processor saves power. This allows battery life to be extended by approximately 10% under typical use.

The C3 and C4 states are entered when the system is idle with no input/output (I/O) or processor activity. The processor only takes a few milliseconds to enter this state. Any bus mastering activities will prevent the processor from entering the C3 and C4 states.

The information contained in the above article consists of excerpts from Advanced Configuration & Power Interface (ACPI). The technical information and troubleshooting described herein are for informational purposes only. For additional information view the document entitled "Advanced Configuration & Power Interface Specification Revision 3.0, September 2, 2004" on the Advanced Configuration & Power Interface website.
"

So.. it has everything to do with the CPU power states.

 

That's an interesting read. But are ALL Intel CPU's affected? I had an older MacBook Pro with this issue, when the system was idle, it started making a high pitched sound, but Apple later fixed it. I'm guessing they may have fixed it by making sure the CPU did not go idle or switch to 'power state C3'.

My new (Core 2 Duo) MacBook Pro does not have the wine.

 

My guess is that although the processor causes the whine by going into these power states, what creates a really loud and audible noise is really the components that resonate as a result. And that frequency is dependent on a lot of things including the configuration of all the other components of the system.

Just a guess though. That's I think the reason that some systems have audible whines and some don't.

 

Hi,
You talk about whine but I thought about additional potential pain in the a**.
I'm going to buy m1330 with T9300 or T8300 and I started wondering if the frequencies 2.4 and 2.5 Ghz of T8300 and T9300 will not cause any problems with devices like wi-fi card or bluetooth, which propagate the waves of frequency ~2.5 Ghz ?
I have strong belief it won't cause any problems but I ask just in case

 

To the best of my knowledge the processors most certainly will not interfere!

 

They are unrelated I believe. The processor clock frequency controls how many cycles the processor goes through in each second. The broadcast frequency of wireless networks should have no impact (I would hope)

 

praneeth...

I never stated anything at all that it didn't have anything to do with power states and, in fact, I related that it does have to do with the entire power compilation and not solely the CPU.

I have been through a hundred of these threads where everyone tries to tackle the problem. No person has.

There are many cheat methods of reducing the noise like RMClock or turning off bluetooth properties and so on...but no solution.

To date, after 17 years, there is no solution by any manufacturer because nobody has been able to pinpoint the problem to fix it.

Start checking yahoo. Everyone has had it and there has been no 'sure fire' solution to eliminate it.

The only common variable recognized by all who have tried to tackle the problem is that its a simple bad mixture of components that creates the problem. Placed in another system separately, all the components work fine but together....zap.

 

Leo,

Noticed the T9300 in your signature. Does your's whine as well?

 

I wish I could tell you because i'm keen to find out myself!

At the top of my sig it says ordered, unfortunately i've got about 2 weeks to wait before I get my hands on it

How about you tell me when you get your T8300 !

 

Ah..

will do.

 

You lucky dog.lolol... I wish mine was coming that fast.

 

I have the T9300, I fixed the whine with RMclock, and had to use their beta 2.35 to fix it, as the standard 2.3 didn't even recognize the new processor.

 

After applying RMClock, does the energy saving still works fine (I mean cpu goes in the same manner into C3 and C4 states) or you set certain value of frequency and voltage and during work on battery you have fixed e.g. 1.2 GHz and 0.8 V.
BTW how much can you undervolt T9300?

 

A good guess, I think. I had a laptop from 2001 that made this so called CPU whine. I could pinpoint the noise coming from a specific capacitor on the motherboard. When I put some pressure on it, the noise was reduced.

 

I just followed this guy's post, http://forum.tabletpcreview.com/showthread.php?t=3516&page=2

everything seems to work, my T9300 shows 0.8GHZ to 1.66GHz most of the time on power safer mode

 

Doesn't seem to work with Vista in that you have to start the program every time you start the machine, and that's if you're lucky enough that it doesn't cause the system to hang.

 

well, for me, vista just ask for my permission to allow it at log on, and doesn't affect my system in that way at all.

 

Lucky you...

 

I just received my T8300 and...

Unfortunately it does whine... hmmm

Pretty loud as well.. I can hear it in a relatively loud work environment with lots of other electronics...

And its not just when on battery either..

 

Hmm.. I move it away from my phone and the whine is very faint.. hmmm maybe I should take a little bit of time before coming to conclusions here.

 

Someone in the HP forum recently recieved their dv9700 with T9300 and there is no whine

 

I'm using my xps m1330 with T9300, 4 gb ram. Just arrived a week ago. I've been on the phone with Dell the last week, because of a wobbly base and CPU whine - they replaced the motherboard, but it is still present. This is my 3rd m1330, and I'm now getting it replaced. Thinking about getting the LG P300 or MacBook Pro instead.

3 laptops with the same problem - how is it possible? They have revised the motherboard 4 times and it is the 9th bios. Why can't this be fixed?
Whe worst thing about is, that Dells employees either say it can't be fixed, or it isn't CPU whine but HDD noise - within system standards. How come they denie the problem, instead of trying to troubleshoot for a solution.

Penryn doesn't solve CPU whine, unfortunately. It was my hope too. But the xps m1330 really seems to suffer from this problem.

 

If you want to eliminate that box that pops up each time (but dont want to compromise security) turn off the 'run at startup' option and instead run it in the task scheduler as an 'on startup' task. Since you have to be admin to create new tasks, you dont get prompted each time the task runs.

This eliminated the prompt at every boot for RMClock nicely.

 

yeah i have a similar problem to whining noise which seems to emanate from under my slot dvd drive is that what you guys are talking about? it is relatively annoying, sounds like a clock alarm at low frequency. Does it actually do anything bad to the hardware? i just got my laptop its a t9300 penryn.