Question about Biostar P4M800-M7A Motherboard

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My cpu fan's speed is very high. i will produce too much noice. can i reduce my fan's speed?? if i reduced that then what happened?? is there any problem????

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Clean the CPU fan and another fan also.
use soft brush and vacum cleaner, usually noise came
from dirt fan.

Posted on Sep 06, 2009

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On my computer when I first power up the display screen gives me the main board details and an option to change settings on it by pressing an F Key. Does your computer do the same? If it does you should press the key and it will give you the options to control and alter things like fan speeds. Don't forget to check if dust or something else is causing the noise.

Posted on Sep 06, 2009

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SOURCE: my cpu fan's speed is very high. i will produce

This does sound extremely like an overheating problem.

There are two parts to fixing this problem.
First is to take th side off the computer and check for dirt build up around the fan and power supply.

Disconnect first.

If you see a build up then get yourself a can of compressed air for cleaning computers and then take the unit outside.
Now with the nozzle on the can and whilst wearing glasses spray all the builds up out of there. DON'T poke the nozzle inside anything.

Now look at the cooler first. Computer are designed nowadays to shut themselves down if there is a problem or speed up the fans.

What you should do is check the fan assembly and if it is loose at all that would give good reason to do what I am going to advise.
Disconnect the fan from the board.
Check your manual for the exact instructions but you should remove the cooler completely

DO NOT REMOVE THE CPU

Now with nothing more than isopropynol and cotton bud sticks or another alcohol based cleaner remove the old thermal grease / sticker from the top of the CPU (make sure it is clean)

At this point it is up to you but you could consider a newer better cooler
You could take your old cooler to a good computer shop show them it and just ask for a better one

If you are using your original cooler then here we go
Do the same with the underside of the cooler.
While the cooler is off it may be worth giving it a good 8low job
.
Now apply some new thermal grease (most computer shops have it)
Be careful about how much you put on

Here are some basic instructions

Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.
If everything went to plan you should now be back in business.

Another consideration is that many cases have places in them for extra fans and usually extra connections on the motherboard too.
They are quick and easy to fit.
Quite often I will fit TWO in what is called a push/pull configuration. One pulls cool air in while the other pushes hot air out

Posted on Sep 06, 2009

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1 Answer

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Fan speed does increase for a reason.....heat. Check you BIOS settings and verify that the CPU temp is not getting too high. Desktop computers are dirt magnets. It is common for the CPU heatsink to get clogged with dust and dirt. This will reduce cooling and increase heat, eventually to the point that the fan will speed up. Get some electronic duster (canned air) and blow out the fins on the CPU heatsink. DO NOT remove the heatsink from the CPU. There is a special compound that is on the heatsink surface that allows proper heat transfer from the CPU. Removing the heatsink means that this compound is disturbed and would need replaced. Most users do not have this compound and thus should not remove the heatsink to clean. If the heatsink is so clogged that you cannot get the dirt out with canned air, you may be able to remove the fan from the heatsink, depending on the fan/heatsink design. Then you can use a brush to get into the fins to clean them.

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To reduce the effect of the heat in a laptop, a fan and heat exchanging grill are attached to the CPU. The fan pulls air into the laptop from the bottom and blows it out the back. This produces a vacuum under the laptop and draws dust into the laptop which can clog the fins of the heat exchanger. After a while, usually just as the warranty runs out, it will start shutting down, locking up or any number of other things that are not good. A really good cleaning of the fan and fins are required.

TIP: Blow the dust from the fan and fins. To reduce the dust collection, Tape a coffee filter over the fan opening on bottom of the laptop. This will reduce the dust and can be easily changed when needed, and it's cheap.

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Our fan is constantly running now for the last last 3 days when our computer is on. We have the computer on all day and shut it down at night. It is louder than normal. Why is this and can it be fixed. ...


Its not a problem if you have the computer running all day long. Get an additional fan for your computer. An additional fan will reduce the noise as more fans running at low speed produce low sound that a single fan at high speeds. Make sure that the CPU is free from dust. More the DUST, higher the heat and higher the noise.

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My pc's Front fan is giving bad sound and its speed increases while playing game and give sound but at normal using like chating playing songs it works oK now what to do any one plzz


When you are playing a game, your CPU has to work a lot and a lot of heat is released. To cool it down, the fans run at a high speed making that bad sound. Playing a song does not require a lot of CPU work. To reduce this get a additional fan which can control heat without making noise. Make sure your CPU and the Heat sinkers present are free of dust.

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Iam using HP Desktop D530 when i open some programmes but processor fan runs so fast and loud 2 gb ram in my pc and hard disk is 20 gb how can i reduce noice of fan ?


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Temperature condition are good, but all fans are at higest speed. could you help me, the machine is under my table!!! if I've to install some software , the let me know where to find it. Thanks in advance


Not all fans are automatically reduce speeds on good temperature. You could try enabling Q-Fan option in your BIOS to reduce your CPU fan automatically, but for other fans you must purchase fans with speed control.

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1 Answer

My cpu fan's speed is very high. i will produce too much noice. can i reduce my fan's speed?? if i reduced that then what happened?? is there any problem???? for that i had gone through the bios setting....


This does sound extremely like an overheating problem.

There are two parts to fixing this problem.
First is to take th side off the computer and check for dirt build up around the fan and power supply.

Disconnect first.

If you see a build up then get yourself a can of compressed air for cleaning computers and then take the unit outside.
Now with the nozzle on the can and whilst wearing glasses spray all the builds up out of there. DON'T poke the nozzle inside anything.

Now look at the cooler first. Computer are designed nowadays to shut themselves down if there is a problem or speed up the fans.

What you should do is check the fan assembly and if it is loose at all that would give good reason to do what I am going to advise.
Disconnect the fan from the board.
Check your manual for the exact instructions but you should remove the cooler completely

DO NOT REMOVE THE CPU

Now with nothing more than isopropynol and cotton bud sticks or another alcohol based cleaner remove the old thermal grease / sticker from the top of the CPU (make sure it is clean)

At this point it is up to you but you could consider a newer better cooler
You could take your old cooler to a good computer shop show them it and just ask for a better one

If you are using your original cooler then here we go
Do the same with the underside of the cooler.
While the cooler is off it may be worth giving it a good 8low job
.
Now apply some new thermal grease (most computer shops have it)
Be careful about how much you put on

Here are some basic instructions

Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.
If everything went to plan you should now be back in business.

Another consideration is that many cases have places in them for extra fans and usually extra connections on the motherboard too.
They are quick and easy to fit.
Quite often I will fit TWO in what is called a push/pull configuration. One pulls cool air in while the other pushes hot air out

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Cpu fan runs at high speed all the time


the problem is that the mother board you are now using has a 4th wire that sences cpu temp this allow the heat sink fan to change speed to get this to work correctly you will need to replace the fan with a 4 wire style. what is happening is your not getting a temp siginal back to motherboard so the fan controller think it hot and send full power to fan alll the time the stock fan in hp systems is not very good any way .Get a good heat sink and fan to fit your new board ebay has them very cheap 5.00 to 20.00 this will all so increase you system temp and all get the proper cooling when you really need it.

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