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02-24-2012 05:49 AM
I am glad it helped.
By the way, I wouldn't rely too much on the figures shown by TPFanControl. You may try another freeware - 'CPUID HWMonitor' to monitor the CPUs' temperatures.
This is important if the fan should not kick in harder by itself when the laptop is put under load. (Then you should click the 'manual' of 'smart' modes for higher speed yourself). So far, I haven't run any application that caused the CPUs' temp. to rise above 55C, so I can't tell.
It would certainly be interesting to find out if, and how the settings in TPFancontrol.ini could be changed to obtain a proper operation of the 'manual' and 'smart' modes.
In the meantime, we are just happy to have at least some way of controlling the thing and making it silent! :-)
02-27-2012 12:56 PM
silentlaptop -- I registered here specifically to thank you for the time and effort you put into sharing this solution. I too have recently gotten a new probook 4530s and after days of searching for a solution had all but resigned to returning it. This helps tremendously, it's amazing that this otherwise well-designed laptop would have such a seemingly simple but aggravating noise issue. It's much more useable now; if you or anyone finds a way to completely silence the fan when it's not needed, please share! Thanks again.
02-28-2012 03:37 AM - edited 02-28-2012 03:50 AM
I have HP 4730s and i have the same problem (noisy fan).The program works, the fan is silent but the fan never stop, when the temperature is 30°C - 35°C in idle the fan must be OFF.
I don't understand why HP doesn't write a program to manage smartly fan speed and temperature on notebook. I think that HP Probook is notebook for work but it is disgusting to work 8 hours on this noise.
02-28-2012 09:42 AM
I am glad to see that my posts about the use of TPFanControl were helpful, you're welcome. I also agree that this only alleviates the problem, while one should strive for a complete solution.
The difficulty with TPFanControl is that most users don't know how it works at the low level to be able to adjust it to its full operation with a different model. I wonder if this is even possible without digging into its source code or seeking support from its makers.
To read out and adjust the DSDT table then seems more tangible, but go and figure what to adjust in all that hexadecimal stuff (see some of the initial posts above).
The hoped for alternative to all this, of course, is that HP solve the issue through some future release of BIOS, drivers or whatever. But if this was easy/worthwhile to them, wouldn' they have done it already? What if they really intended 4530s not for office but for field work?
Then we must go tell people how silly they are for spending money on 'rugged notebooks' :-) /sarc off
Anyway, I hope some of you will continue their search regarding all of the above, and should they make progress, will share.
03-01-2012 02:30 AM
I've also tested the TPFanControl software on my 4530 and used the "Active=1" BIOS-mode.
Basically what happens is that the fan is permanently locked on lowest speed no matter what the CPU temperature is.
Tested with RealTemp utility and prime95 stresstest software. The CPU just got hotter and hotter until I terminated the stresstest (the fan never increased its speed).
Using BIOS F0A, intel hd 3000 (no dedicated graphics card).
As already mentioned by previous posters, make sure you constantly monitor the temperature if using TPFanControl on a probook 4530s.
Hopefully HP will release a BIOS update in the future with less aggressive fan control. But if people don't tell HP by calling their support they won't know its a problem.
03-06-2012 10:39 PM - edited 03-06-2012 10:43 PM
I have a 4330S with a Core i5 2430M (HP stock code LW813EAR#BCM) and a dedicated Radeon 6490M graphics card which then turns in to the 7470M after you update to the latest drivers on HP's website (I believe the 7470M is actually the correct description for the version of the card 1GB of DDR5 RAM but the driver originally hadn't been updated by HP to know about this version of the card).
I have had the machine for just over 2 weeks. Its basically a home laptop (so very quiet here often making noise a bigger problem) but use it all the time as I'm not in a job at the moment. After a lot of research I went for this laptop mainly as the only affordable 13.3" laptop with an Express Card slot (I see these as vital to future proof your machine and to cover things like the USB sockets getting broken off) and a USB3 socket (many cheaper laptops have USB2 only) as well as having a dedicated graphics card and a latest series i5 instead of an i3. The fact that i discovered before I bought the machine (on a forum) that I could easily put a Quad i7 processor in the socket instead of the i5 when they get cheap enough was the final icing on the cake. Plus I also got the machine at a very good price even allowing for it being an HP Renew machine.
Everything about the laptop is fine apart from the fan noise. Having had a much, much worse fan noise issue with a 12" Asus laptop back in 2004 that I finally managed to get them to take back (it took 6 months of correspondence) it strikes me that this laptop is probably made in the same factory in China that made the Asus machine because the very deep case design for a 13.3" along with sides that slope inwards after a certain depth is the same design concept.
Basically the noise isn't really bad like the Asus was (it had a frequency like a droning wasp that really drove you mad) but is still unacceptable. I think if had the 15.5" model like you do I would be even more unhappy because it should be a lot easier to get rid of the heat within that case size.
I am going to give the TPFanControl utility a go but I would be concerned about the risk of the processor or motherboard burning out given that on my last DV1000 HP laptop the motherboard burned out one day before the 1 year warranty expired. The trouble is I think HP are now paranoid about such problems and would rather risk hitting their customers with fan noise (which they know customers will just have to put up with) than improve their heat synching and/or risk more warranty returns.
I do think its slightly unfortunate that people are starting different thread on this topic of the fan noise for all the various different current 4 series Probook models because basically they are all the same chassis design upscaled or downscaled running precisely the same BIOS and most of the same hardware.
03-06-2012 11:45 PM
OK I Installed TPFancontol v0.62 from http://www.staff.uni-marburg.de/~schmitzr/donate.h
Clearly the utility was designed for IBM/Lenovo Thinkpads which is why HP, with their nanny state attitude to controlling their customers and giving them specially HP controlled out of date versions of the Radeon video drivers etc basically deny most customer access to change these kinds of settings.
I find that BIOS mode has the fan running at its lowest level but not at Off with TPFanControl set to BIOS mode. But with my HP BIOS set so that the fan does not run all the time it is on AC power I previously always got two or three minutes after switch on with no fan at all but after that the fan kicks in at a minimum of the lowest level then occasionally cycling up to something higher (but nothing like the banshee howling maximum level that TPFanControl sets it too if you select the SMART or Manual button toggles in the app's interface).
All that TPFanControl really seems to do is reveal the basic problem here, which is that HP set the BIOS to turn the fan on at temps of 49C and above at the minimum 273rpm. Clearly the innards of the machine get up to 49C within three or four minutes of switch on. We need a developer to alter the actual code in the app so that it can actually take control of the Panasonic fan in our HP units and not turn it on until the temp exceeds 65C or 70C. If someone here had the skills to do that then we could truly have a silent notebook machine.
Clearly the 49C fan trigger threshold picked by HP is ludicrously low and is the reason why the fan is always running on the machine.
I would note that if we could get this program working I would then be forced to consider replacing the 640GB HP driver with some quieter model, probably a Samsung. As thing stand the fan is noisier than the hard drive so there is no point in doing this.
03-07-2012 05:11 AM
The AMD Radeon HD 7470M (sometimes also still called ATI Mobility Radeon HD 7470) is a laptop graphics card for entry level to middle class notebooks. It is based on the old 40nm Seymore-XT chip and therefore just a renamed version of the Radeon HD6490.
03-08-2012 02:42 AM
Using TPFC 6.2:
255: Fan is Off
128: Fan is "silent"
80: Fan at medium speed
54: Fan is loud
1: maximum speed
Found this in my DSDT:
Name (TRPC, Package (0x05)
seems to be an two dimensional array with speed states.
Store (0x10CC, MRPM)
i think MRPM is "marimum rounds per minute". 0x10CC is 4300RPM.
editing the speed states could fix your loudness problems.