7805u- annoying high pitch noise!!!

recently my laptop started to get this really annoying consistent high pitch noise...no matter what i'm doing on the laptop it just wont stop! its coming from the left hand corner of the laptop and its just drivin me up the wall!!! anyone have the same problem or has had this problem and if so any possible solutions?

 

Is it CPU whine? If so you're just one of the unlucky few that can register the noise.

 

i'm not really sure what it is all i know is that it drives me nuts!!! is there no way of fixing it?

 

If its CPU whine then no not really.

If its not CPU whine then you're going to have to find out what componet is making the racket and go from there. It might be something as simple as the fan needs cleaning, or it might be something as bad as piezo vibrations coming from certain componets.

I really cant tell you for sure though not having the notebook infront of me

 

I also heard the noise on my 7811 when I flashed the .17 bios. It comes from the GPU fan at low RPMs. I went back to . 08 is it went away :/

Now the question is, do I want this high pitch noise, or a crazy GPU fan.

 

i'm a total noob at this so if you would kindly tell me how to flash the bios...i'd rather deal with a crazy gpu fan than an annoying high pitch squeal!

 

http://forum.notebookreview.com/showthread.php?t=303626

.08 seems to be good enough. The others are not well documented, and dont show and improvement.

 

thank you very much for your help ktr...also i just purchased a t9900 and wanted to know will i have any type of issue with changing the p8400 processor to the t9900 using that bios? i've been reading about the .12 bios is that one any good?

 

Not to sure if the newer bios ever had and updated microcode for newer CPUs. But from the change log from .05 to .10, it did not. And IIRC, .12 was still a beta bios, so it's your choice to try it. Personally, I would stick with .08, but then again, I am not sure if it will have issues with the t9900 (which I doubt).

 

thank you ktr for all your help! for some reason though everytime i try to download the .08 drivers i keep getting a message saying "530 not signed in"

 

I am sure those FTP links are dead by now, you need to look at the other pages of that thread to see if some one has hosted the files some where else..

 

I hosted the group not sure if 9c.08.00 is in there though.........

www.pcambrosia.com/Files/7811_BIOSES.zip

 

Nope, it is missing. IMV-026W is 9c.08.00.

I have uploaded it at mediafire: http://www.mediafire.com/?sharekey=7af4b6810659684567cd7f7bd65f7eeff8ff75a751a4db8d5621d66e282a0ee8

 

thank you so much ktr your the man!!!!

 

so all i need to do is just run the 64bit exe file and thats all?

 

That's correct. Execute "IMV-026W.exe" in the 64 folder. It will start flashing the bios (CPU fan is going to go high speed during this processes). Once it is done, your laptop is going to automatically reboot. It might restart again on the bios screen...don't worry.

 

Thanks, I've added it to the compressed zip file and uploaded it to my server as well. Eventually I want to get the official 9c.17.00 added to the archive too.........

Edit; I've added 9c.17.00 to the archive on my server as well............

 

thanx again ktr!

 

Do post back with your results.

 

ok i havent flashed my bios yet mainly because i'm scared to but i got my t9900 in and its amazing!!! the only thing is i'm not sure if this is a little hot but depending on what its doing it can go from 35 to 41 or 50 degrees sometimes...is this bad?

 

lol no....seems normal. My X9100 (C0 stepping; retail) idles @ 55C and gets up to 92C under load! and that's with undervolting and ridiculous cooling.

 

ok cuz the p8400 the highest it temp it reached was 41c so when i saw 51c i kinda freaked out! thanx! but my t9900 idles at 31 to 35c under stress 40c to 50c

 

does anyone know for sure if the .08 bios supports the t9900? i wanna flash it badly to .08 because of the stupid screeching noise that my gpu fan is making but i'm not sure if its ok to use the .08 bios with my t9900!

 

i have done it it works

 

okay i flashed my bios to .08 successfully but the annoying gpu fan noise is still there! is there anything i can do to get rid of it?

 

i once spilled soda on the table where my laptop was sitting. the soda crept up underneath the laptop and got to the cpu intake fan. it took about a month for the fan to completely stop working and made my computer slow down to a crawl when it was under a heavy load. i took my computer apart and did a thorough cleaning. the only 2 lubricants i had at the time was zippo lighter fluid and CLP (Cleaning, Lubricating, Protecting solvent used to clean weapons). i had to get underneath the fan to properly clean all the dried soda off and practically drenched the fan in lighter fluid and later CLP.

if the high pitch noise bothers you that much, i suggest you take your computer apart according to the sticky dis-assembly instructions and clean the gpu fan. i'd probably use rubbing alcohol to clean it and WD-40 to lubricate it.

 

i'll try to open it and clean the gpu fan and lubricating it and see if that works...its just that i read on other threads people having the same issue and some flashing it and the problem going away...like 2 people so far have flashed the .10 bios and said that the noise went away...this annoys me so much because i've had this laptop for 4 months now and take excellent care of it and i just dont know where this problem suddenly came from.

 

It took couple of hours before it went away for me after flashing back to .08.

 

i guess i'll stick with .08 for a while and see if the noise goes away eventually

 

one thing that i noticed about this noise is that it doesn't occur when the fan is spinning...when the fan stops the noise starts...whenever i get outta playing a game and the fan stops the noise gets way louder