Nvidia GeForce 640 GT fan won't go over 25%

fan may just went bad and that's all it now can do ?? now what is the fans RPM at that 25% ? seems like most gpu fans in general are rated about 2000 -3500 rpm fans ??

you would need to pull the fan and get the numbers to cross reference at there manufactures site on there specs

Compatibility GT 740, 640, 630, 440, 340, 330, 320, 240, 220 (not LP), 130

https://www.arctic.ac/us_en/accelero-l2-plus.html

Compatibility GT 740, 640, 340, 330, 320,

https://www.arctic.ac/us_en/accelero-mono-plus.html

maybe outher nice aftermarket coolers to find that may fit ??

of see if any just replacement fans are available on e-bay from a pull off ?

https://www.newegg.com/VGA-Cooling/SubCategory/ID-576?Order=PRICE

they can do anything crazy hardly spin, spin out of control stop spinning , ect ....

gpu-z will give you that info or hwinfo64 ?

https://www.techpowerup.com/gpuz/

https://www.hwinfo.com/

get both

'' I can't seem to find that setting on MSI Afterburner'' should be part of its hardware monitor ?

like seen here ''fan tachometer'' in the graphs

http://images.anandtech.com/doci/8589/Afterburner.PNG?_ga=1.97339674.406201976.1468451130

from this

http://www.anandtech.com/show/8589/anandtech-guide-to-video-card-overclocking-software/6

well its like this live with it ? find another gpu fan to scab on it or a direct replacement and see what you get ? or retire it and get a new card .. I would try gpu-z to see if it shows different and not a bug with afterburner on that card ?? maybe the card sensors are going bad ?? with out a known to be working right fan to see ???

what brand is that card and model number ?? and is it from a prebuilt like a dell or hp ??

''Maximum GPU Temperature (in C) 98 - C 95 C

[Thermal and Power Specs]

http://www.geforce.com/hardware/desktop-gpus/geforce-gt640/specifications

maybe just needs blowing out of some dust ?? grab some canned air ..

example
https://www.amazon.com/Dust-Off-Compressed-Gas-Duster-Pack/dp/B00DZYEXPQ


look here 25% may be its max anyway like for this gt640 ... that's all she's going to do

Fan Speed
Min: 16%
Max: 25%
https://www.techpowerup.com/vgabios/126628/nvidia-gt640-2048-120503

and the NVidia reference [maybe the card dell used

Fan Speed
Min: 16%
Max: 25%
https://www.techpowerup.com/vgabios/127740/nvidia-gt640-1024-120307

maybe worrying about nothing

well don't count on just any card working in that dell things can be real funny doing so and that model may not accept a card over a 600 series due to the bios used on there motherboards

use your model and dells forums and search it out on what said to work and what will not .


my disclaimer

some models of store bought computers [dell.hp,acer,ect..] may come with a ''locked or fixed'' / legacy or uefi bios and may not allow you to change certain hardware as a video card.. this is done to protect them from undue warranty claims and refunds .this is not done to hurt you but to protect them. you really need to see if that upgrade has been proven to work in your model first before you invest money in it .. there are a lot of these threads here at toms to look at some models will allow upgrades and some dont.. and a lot of guys here say ya ya ya when is really no no no...it would be sad you spent $200 on a card that won't post after you installed it as most find out. then get told its your psu and you spend more and end up right back where you are now, but its up to you good luck..


you got to know the boards in these computers are not like the ones we use to do custom builds witch are open to upgrading with in the boards compatibly . the bios is custom made for there design and just for the parts they authorize to be used on there computers there only guaranteed to work as is out of the box as you bought it ,..


also these boards do not have to meet atx standards and there pci-e slot power may not do the required 75w needed for most higher end cards and can be limited to say 45 or 60w that is all thats needed with the low end factory oem cards that it may of shipped with
[example]
http://en.community.dell.com/cfs-file/__key/communityserver-discussions-components-files/3514/1030.DESKTOP.jpg

in the end any upgrade you do is all your own risk . the prebuilt manufactures only guarantees there computers work as sold to you as is out of the box from there factory with what they put on it , not a drop more

there in business to sell you whole ready to go computers , and dont worry about you upgrading them or giving you support to do so . thats not how they make there money they prefer you run to wal-mart and buy there ''better'' latest models

+jjatemlos I've experienced this problem before. In my case it was a 3rd party utility responsible. I recommend that you remove all 3rd party GPU applications, and also remove the GT 640 drivers with DDU (Display Drivers Uninstaller).

http://www.wagnardsoft.com/forums/viewtopic.php?f=5&t=765
<click blue link "official download here">

Run the software and allow it to reboot your system info Windows modes, to allow it to proceed with drivers and remnants removal. Then allow it to reboot into Windows normal mode, download and install latest drivers (excluding Geforce Experience with custom nvidia install). If you do all this and the GPU fan still doesn't go above 25%, then I'm out of ideas. But I think that software is responsible.

seeing that fan speed v- bios controlled in the card don't see how any of that craziness will work , maybe a bios mod on the card and I don't see that worth the risk of screwing that up and bricking the card

http://forums.evga.com/Modify-fan-settings-in-BIOS-m2380091.aspx

'' GT 640 drivers with DDU (Display Drivers Uninstaller).''

whats wrong with nvidias installer ?? you must not know how to uninstall a driver having to resort to some gimmickware as that to do so ?? I've seen them 3ed party programs do way more harm then good 16 years I never had to use anything like that . just properly install / uninstall the driver as normal .


but I see why you need to from this statement

'' download and install latest drivers (excluding Geforce Experience with custom nvidia install).''

how do you know the latest drives are compatible with his system / OS used ??

+junkeymonkey All do respect, my response was directed to the person who started the thread, not to you personally. Your responses, while verbose, don't usually result in a solution in the vast majority of cases.

Personally I would be perfectly fine if my given advice did not solve this issue; it is my opinion. However, you appear to be personally insulted when someone's advice defers from your own. By any chance, are you below the age of 18? I don't ask this question as a veiled insult. I've just noticed that over time you appear to devote a lot of effort into trying to put down others down. It's just not behavior that is common in adults. If I am mistaken then I apologize.

+jjatemlos Are you still experiencing the problem? If so, then you are welcome to follow the advice that I previously stated, if you wish to do so. If it doesn't work then you've lost nothing but a little time. Either way, I hope that you day is otherwise going well. Friendly regards.

Glad to hear it. Happy gaming.

'' desk fan pointed at the GPU for some extra cooling '' yup, been there done that


''Personally I would be perfectly fine if my given advice did not solve this issue; it is my opinion. However, you appear to be personally insulted when someone's advice defers from your own. By any chance,''

no its you answered to something that cant do a thing for him

'' By any chance, are you below the age of 18?'' weather I am or not still older then you . see that your help did not offer anything but off the cuff info and maybe of bad advice . sorry ..

heck a 2 year old can see that you tell him use latest driver ?? what if he gopt xp or vista on that old dell ??? latest driver may screw him ? ddu may remove all the NVidia drivers even the default ones built in to windows as it fail safe driver seen it too many times

see you answered in a quicky hurry up not looking at anything but in general

and the NVidia reference , that would come in a dell

Fan Speed
Min: 16%
Max: 25%
https://www.techpowerup.com/vgabios/127740/nvidia-gt640...


'' I've just noticed that over time you appear to devote a lot of effort into trying to put down others down''
nope just guys like you when there advice don't add up never said I was here to make life friends

have a nice day and please don't get mad just get