Question about HP ProBook 4510s Notebook

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Processor my fan doesn't work, i want to know how can i reach it so i can know the problem and how i can i fix it?

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Is it clean, free if dust? If you reboot the machine the fan does not spin? This may help:

Posted on Jan 10, 2013


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How do I troubleshoot my 1993 Saturn sl1 the fan doesn't work so the car overheats, beings I'm a female, tired of depending on a am , please help

If you know for a fact the cooling fan is why the engine overheats, you would test the relay and the signal from the computer.
The relay gets power from the battery circuit and the key switch, and a ground signal from the computer when the fan is needed.
The engine temp sensor tells the computer how hot the engine is, and when it reaches 220 degrees the computer grounds the relay providing power to the fan motor.
You would need a meter or a test light and the wiring diagram for the circuit to find the problem.

Oct 03, 2012 | 1993 Saturn SL

1 Answer

Cooling fan temp light stays on when air condition is on. fans are not kicking on. Is it the fan module ?

I didn't know it had a light on the dash that said "cooling fan temp".
My 93 doesn't.
The cooling fans are controlled by the computer and turned on when the ac is running or when the engine reaches 220 degrees.
A mechanic would check the fuse and relay for power and the fan motor for power and ground.

Aug 26, 2012 | Cadillac DeVille Cars & Trucks

1 Answer

I get a diagnostic code "3"

Try to get a paste on the processor and make sure ur fan is working properly.

Nov 10, 2011 | Dell OptiPlex 740 PC Desktop

1 Answer

I have a Acer L410... continuously restarts... for the first time when the machine is cool for resonable time... it is OK for 15min after that, it reboots every 2mins and even in less time also... not sure...

A) Inside of computer is dirty.

Processor overheats, and turns off. (BIOS turns it off)
A Processor has a specified temperature range it can operate in. (Thermal Range)

If it exceeds a specified temperature, (Thermal Limit), it turns off.
This is a built-in fail safe feature designed to keep the Processor from burning up.

1) Computer unplugged from power, Anti-Static Precautions observed, use a can or two of compressed air for computers, and clean it out.

Especially the Processor Fan, and Heatsink.

[Open the computer case;
Computer on a table, computer unplugged from power, all cables removed.
If the computer is being used in the vertical position, remove the foot stands, place the computer in the desktop position. (Flat)

Turn the screws Counter-clockwise to release the cover.
Hold the cover with both hands, slide it back about an inch.
Gently lift upward to detach the cover from the computer ]

Attach the plastic straw provided to the can of air's nozzle. Break the plastic lock tab off of the top of the can.

Start at the top right, or left inside corner. Spray air across to the opposite inside corner.
Keep the can level, use the can of air as a professional spray painter would.
Squeeze the trigger in all the way as you begin, let go of the trigger when you reach the other side.

Drop down a space, and spray air across again.
Keep going down, and across in rows until you reach the bottom of the computer case.

Along the way pay special attention to the Processor Fan, and finned Heatsink, under the processor fan.

The fan's blades, center hub, and surrounding cage (Shroud) must be clean.
Use Q-tips to disturb the dust/dirt, so the compressed air can remove it.

Use SHORT BURSTS of air when cleaning the fan. Squeeze the trigger in all the way, then let go quickly.
The processor fan is only designed to spin so fast.
Spinning it faster than it was designed for, can lead to premature failure of the fan's bearings.

The fins of the Heatsink must be clean in-between them, and on the outside.
Use the plastic straw up close.

You may wish to use a dust mask. (DO NOT use a vacuum!! A vacuum produces Static electricity)

You will note that after using the can of air for a while the pressure begins to drop.
This is because moisture in the outside air is freezing, and clogs the nozzle, plus plastic straw.
Let the can sit for a while to warm up. (This is why I use 2 cans. One is warming while I'm using the other one)

You will also note that if the can is tilted, some of the propellant may come out.
After you are satisfied that the computer is clean, leave the cover off for 10 minutes, or so, to allow any moisture to dry out.

Then replace the computer cover, reattach all cables, and finally the power cable.
(Always unplug a power cable FROM the surge protector, NOT the back of the computer.
{Power Supply} Unplugging from the back may create a power spike, and burnout the computer )

Anti-Static Precautions:
Your body carries Static electricity.
Static WILL fry out (Short Circuit) the delicate hardware components inside a computer.

De-Static your body BEFORE reaching inside the computer, and working on it.
(To include cleaning)

Computer on a table, computer unplugged from power, computer case open.
TOUCH an unpainted surface of the metal frame, of the open computer case.
This action will relieve your body of Static.

Should you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

If cleaning alone doesn't solve the problem, check the fan that supplies air to the Processor.
(Processor Fan)
Computer case open, computer operating, observe the fan to see if it is spinning.
Observe to see if it looks as though the fan is spinning fast enough.
Observe to see if the fan is spinning intermittently. Spins, then stops, then spins.

B) Thermal Paste:

The top of a Processor, and the bottom of a Heatsink, are not perfectly smooth.
A magnified view would show, 'Hills, Valleys, and Pit-holes'
When the two parts are mated together there are air pockets created.

Air is an Insulator, not a Conductor.

Thermal Paste fills these voids, and is an excellent conductor of heat.

After time, and/or due to excessive heat, (Computer is dirty inside), the thermal paste may dry up, and lose it's conductivity properties.

The top of the Processor, and bottom of the Heatsink, must be THOROUGHLY cleaned, and new, fresh thermal paste properly applied.

For additional questions please post in a Comment.


Sep 27, 2011 | Acer Veriton L410-ED4450C PC Desktop

3 Answers

My cpu fan vibrates. help me

There might be lot of dust accumulated on fan and heat sink. Clean it and see.

If it still vibrates replace with an approved CPU fan.

Jul 23, 2011 | Intel CELERON 2.66Ghz CPU AND MOTHER BOARD...

1 Answer

My monitor lost signal and mouse and keyboard lost signal as well. I'm a dummy when it comes to computers so please help HP PAVILION P6000 SERIES MODEL p6653w

"My monitor lost signal and mouse and keyboard lost signal as well."

That would be because the computer isn't working.

No Signal on the monitor means it isn't receiving a video signal.

At first diagnoses one would check the monitor cable to see if it is good. Due to your added statement that the mouse, and keyboard have no signal, it definitely means the computer isn't working.

(The monitor cable would be removed, and installed on a known to be working computer, and monitor to test it)

You may see LED lights light, and perhaps fans spin, but the Processor isn't turning on.
Not enough power, or the computer is dirty inside.
(Or a combination of both; Read on)

The hardware components inside the computer are cooled by air.
{ Hardware component examples such as the Processor, Ram Memory, motherboard, graphics card, (IF installed), etc.}

This support page on HP Support, shows how to open the computer case ,of an HP pavilion p6653w desktop computer,

I would like you to have this information of how to open your computer case, but would also like you to view the 6th photo down, showing the side panel of the computer case removed.

Not a very large photo of the inside of your computer, but helps me explain.

At the bottom is a black plastic Fan assembly.
This is the Processor fan.
The fan sits on a finned Heatsink, and the Heatsink sits on the top of the Processor's case.

The Fan and Heatsink are the cooling components for your desktop computer.
They need to be clean, as well as the entire inside of the computer, but more attention needs to be paid to these two components.

When a Processor overheats it turns off. (BIOS turns it off)
This is a fail safe feature designed to keep the Processor from burning up.
(A Processor has a Thermal Limit)

No Processor operating, No computer.

This Fan/Heatsink combo is similar to the design in your computer,

Note the fan blades, and square surrounding cage. (Shroud)
The fan blades, center hub, and surrounding cage must be kept clean.

Note the aluminum looking finned square object under the fan assembly.
This is the Heatsink.
(Left-click on the photo, then in the small window that comes up, hover your mouse cursor over the different views)

The Heatsink is essentially a flat plate of metal with tall, thin fins protruding from it.
The plate of metal absorbs heat from whatever object it is placed against, (In this case a Processor), and the tall, thin fins absorb heat from the plate of metal.

The fins then radiate the heat away. The fan pushes air in-between the fins, and around the fins, and helps to carry heat away.

In-between the fins, and on the outside of the fins, needs to be clean.

A) Computer unplugged from power. Open the computer case on a table.
It is now time to observe Anti-Static Precautions BEFORE reaching inside your computer.

Anti-Static Precautions:
Your body carries Static electricity. Static WILL fry out (Short Circuit) the delicate hardware components inside a computer.

Computer case open, computer unplugged from power, TOUCH an unpainted surface of the metal frame, of the open computer case.
This action will relieve your body of Static.

If you leave your computer in the middle of working on it, be SURE to touch the metal frame again upon your return.

Buy two cans of compressed air for computers. Break the lock tab off of the top of one can, insert the plastic straw provided.

Refrain from tilting the can of air. It will happen, but try to refrain from letting it.
(The propellant comes out, and the can freezes up faster)

I would suggest starting with a few Q-tips on the fans blades, center hub, and shroud.
You aren't trying to wipe the 'Gunk' off, just disturb the 'crust'.
Once the outer 'crust' is disturbed, the air will remove it easier.

{You may wish to wear a dust mask}

Use the straw, and point it at the Heatsink fins. Move in a pattern as you clean.
Suggest now to start at the top left inside corner of the computer case, and spray air to the right top corner. (Inside)

When you start hold the can level, and squeeze the trigger in all the way. As you reach the end of the other side, let go of the trigger.
Move down a couple of inches, spray across again. Keep going until you reach the bottom of the computer case. Spray as a professional paint sprayer would.

Tilt the case top forward towards you, and spray the bottom out.
Close the computer case, plug the computer back into power.
WAIT 2 minutes, turn the computer on.

{As you spray air you will notice along the way that the air pressure drops. The nozzle opening of the can of air is freezing shut. Sit the can down, let it warm up. Use the second can of air }

If this doesn't solve the problem, the problem is a bad Power Supply.
Enough power to turn on LED lights, and maybe spin fans, but not enough to turn the Processor on.

1) If all of the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use 51 to 125 Watts of power. Depends on what Processor it is.
(Older processors such as a Pentium III for example, use less than 51 Watts)

The AMD Athlon II X2 250 processor in your computer can use up to 65 Watts.

You can replace the Power Supply yourself, and save money.
I can guide you on here, and give you links to detailed information.
I can also recommend a Power Supply with the thought in mind, of the 'Best bang for the Buck'
Reliable, and yet economical.

(One such example of how to replace a Power Supply, in an HP Pavilion p6653w,

For additional questions please post in a Comment.
(Believe upper right of your page. Our site is revamping all the time)


Jul 18, 2011 | HEWLETT-PACKARD Pavilion p6653w...

2 Answers

The LED in my motherboard is on, but if i turn on the switch, their is no response. the power connection is correct. but it doesn't work

Try swapping the power button connection with the reset button connection. Then to turn on your computer you will need to press the reset button. If that works you have a faulty power button. Otherwise try using a different PSU. One that you know works. If that doesn't help the motherboard will have to be replaced.

Jun 18, 2011 | ASUS P5VD2-VM SE - Motherboard - micro ATX...

1 Answer

Hp a6320in processor fan air flow direction?

Processor fans are setup to nearly always blow air inward onto the heat sink that sits on top of the processor. The heat sink pulls heat off of the processor and the processor fan blows air onto the heat sink to cool the heat sink so that it can pull more heat off the processor. However, read the following link to see that it probably doesn't matter that much which way you put it:****-vs-blow-way-do.html

I would definitely set it up with the processor fan blowing inward onto the CPU. If you're experiencing overheating you can try switching it to see if that helps. Use a program such as SpeedFan to monitor your computer's temperatures.

Good luck, please post back to this solution if you have any difficulties, and thanks for using FixYa.

Jun 01, 2011 | HP Compaq Fan Assembly

2 Answers

My toshiba L455D-S5976 is overheating everytime i play games like farmville or sims 3 and when i try to burn dvds. help!!!!

Try cleaning the airways and exhaust with a vacuum cleaner, there may be fluff stopping the air flow.
Hope that helps if not replace the fan and heatsink compound on the uProcessor.

Dec 31, 2010 | Toshiba Satellite L455D-S5976 Notebook

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