'Battery Alert' appears before the 'press 'ESC' key for Start-up menu.', however, ' Cooling Fan Alert' appears after 'press 'ESC' key for Start-up menu.'

**Thirdly:**If  setting the internal/Intel GPU to disable  in the BIOS and just use the HD6770 would help keep the CPU running cooler, I would change to only use Intel GPU 'power-saving GPU'  in  'Switchable Graphics' window below.

Try changing it and see if the CPU runs cooler.

==========================================================

I have not covered the entire surface of the CPU and GPU with thermal compound for two reasons:

First one: There is a pad surrounded GPU(have you seen clearly my screen shot below?) Also,  I was told to not disturb the pad on the GPU with thermal compound. So, I have only covered the top/head of  the GPU with thermal compound.

OK, that explains that !

The CPU doesn't have pads, so I can cover the entire surface of it with thermal compound. 

I would try that, I put one very tiny bead of thermal past in the center of the CPU and 4 smaller beads, about 2/3rds of the way between the center and each corner of the CPU.

==========================================================

The other one is: while dismantling my laptop for the first time after coming from the factory,  I only found that the old thermal compound was only put on the tops of CPU and GPU. It was not put on the entire surface of the CPU and GPU. So, the manufacturer didn't apply the thermal on the entire surface of CPU and GPU?

It's an assembly line process and as such they do not take the extra effort, just what is necessary.

Thanks a lot,

Then, you think I should only cover the head/top of GPU, and not the entire surface to not disturb pad.

You think that I don't need to spread the thermal paste on the CPU and GPU surfaces, before putting heatsink on them down and screw down.

You think that factory don't take the extra effort, so they don't cover the entire surface of CPU?

Anyway, I think that old fan, although it is intact in its outside form, is no longer functioning well at all even if cleaned. I don't know why?

Thanks a lot,

Then, you think I should only cover the head/top of GPU, and not the entire surface to not disturb pad.

Yes

You think that I don't need to spread the thermal paste on the CPU and GPU surfaces, before putting heatsink on them down and screw down.

No, not necessary if the 5 beads of thermal past are placed on the CPU like I mentioned "AND" the heat sink is securely fastened (does not move after it mounted).

You think that factory don't take the extra effort, so they don't cover the entire surface of CPU?

Yes

Anyway, I think that old fan, although it is intact in its outside form, is no longer functioning well at all even if cleaned. I don't know why? 

As you said there is not much airflow coming from the laptop's air vent, which indicates a possible fan problem. Most often its the fan motor bearings that wear out.

J W Stuart: http://www.pagestart.com

Anyway, I think that old fan, although it is intact in its outside form, is no longer functioning well at all even if cleaned. I don't know why? 

As you said there is not much airflow coming from the laptop's air vent, which indicates a possible fan problem. Most often its the fan motor bearings that wear out.

J W Stuart: http://www.pagestart.com

Thanks a lot,

I am respectfully requesting you to take some of your precious time out to read my points below and reply to me

**Firstly:**Do you think that the type of thermal compound  I have applied was not the correct one? So, the error 'the system has detected that a cooling fan is not operating properly' still appears to me.

I have applied a silicon thermal compound as shown in the screen shot below:

Secondly: Sometimes I faced this error message below while my computer is under fairly load.(under high temperature). So, do you think it is related to excessive heat?

Thirdly: I have taken some snapshots with some different hardware reading programs while my computer in fairly load. So, I would like you to confirm for me if the CPU/GPU temperatures are high or not.

Core Temp reading only shows the sensors of CPU( Core Temp only gives the sensors of the CPU)

The Sensors of AMD discrete GPU and Intel internal GPU with the 'GPU-Z' hardware  Reading program:

FanSpeed utility reading:

Fourthly: in the ''CPU-Z' hardware Reading program, I see that the memory size of Intel internal GPU in  is "-1274" MBytes? This is strange size?

However, the memory size of the AMD Discrete GPU is alright '1GB'(1024 MBytes)

But in the 'GPU-Z' hardware reading program,  the memory size  of Intel internal GPU is 0MB. However, for AMD discrete GPU is 1024MB:

Fifthly **:**I noticed that the Bus Interface of the Intel internal GPU is N/A However, the Bus Interface of the AMD discrete GPU is  PCI-E 2.0x16@x8. 2.0 is  in Hardware GPU-Z reading program. Why? And What  is the Bus Interface of the GPU? 

Sixthly : in the above screen shots,  why is there  no BIOS version listed while selecting 'AMD discrete GPU'. However, the is BIOS version while selecting Intel internal GPU?

Finally: The Yemeni merchant sold me the fan below for $50. It is just a fan not a fan/heatsink assembly.  So, do you think I can go ahead with purchasing that  fan with that high price, although I don't know if that new fan would solve the problem or not? That fan is the same size of my old fan and can be biled in my old heatsink.

Also, I didn't find any similar fan like that one was sold for me for $50.

I found fan/heatsink assemply at  eBay for under $30. However, there would be high risk in Yemeni customs(losing and stealing items) if I had purchased it.

http://www.ebay.com/itm/HP-Pavilion-DV6-6000-DV7-6

**Firstly:**Do you think that the type of thermal compound  I have applied was not the correct one? So, the error 'the system has detected that a cooling fan is not operating properly' still appears to me.

I have applied a silicon thermal compound as shown in the screen shot below:

Can't read the brand of paste, photo too blurred.

Secondly: Sometimes I faced this error message below while my computer is under fairly load.(under high temperature). So, do you think it is related to excessive heat?

Yes

Thirdly: I have taken some snapshots with some different hardware reading programs while my computer in fairly load. So, I would like you to confirm for me if the CPU/GPU temperatures are high or not.

Core Temp reading only shows the sensors of CPU( Core Temp only gives the sensors of the CPU)

**Look at the Tj. Max: value (**Junction Temperature is the maximum temperature allowed at the processor die). Your core temperatures are only about 5 degrees below Tj. Max at only 54% load, this is way to hot for a CPU that is only running at half load.

The Sensors of AMD discrete GPU and Intel internal GPU with the 'GPU-Z' hardware  Reading program: Have no idea as to what is normal Temp for your system.

FanSpeed utility reading:

Fourthly: in the ''CPU-Z' hardware Reading program, I see that the memory size of Intel internal GPU in  is "-1274" MBytes? This is strange size?

Could b that CPU-Z is not reading it properly, or that it is showing how much external memory is being used (-1274 is subtracted from your total memory).

However, the memory size of the AMD Discrete GPU is alright '1GB'(1024 MBytes)

But in the 'GPU-Z' hardware reading program,  the memory size  of Intel internal GPU is 0MB. However, for AMD discrete GPU is 1024MB:

Fifthly **:**I noticed that the Bus Interface of the Intel internal GPU is N/A

(Their is no bus interface for internal CPU graphics) However, the Bus Interface of the AMD discrete GPU is  PCI-E 2.0x16@x8. 2.0 is  in Hardware GPU-Z reading program. Why? And What  is the Bus Interface of the GPU? 

The Bus interface refers to the graphics bus on the motherboard. This bus is used to transfer data to the external AMD graphics system.

Sixthly : in the above screen shots,  why is there  no BIOS version listed while selecting 'AMD discrete GPU'. However, the is BIOS version while selecting Intel internal GPU?

BIOS is the motherboard BIOS used to load the Windows OS.

Reference: https://en.wikipedia.org/wiki/BIOS

Finally: The Yemeni merchant sold me the fan below for $50. It is just a fan not a fan/heatsink assembly.  So, do you think I can go ahead with purchasing that  fan with that high price, although I don't know if that new fan would solve the problem or not? That fan is the same size of my old fan and can be biled in my old heatsink.

Also, I didn't find any similar fan like that one was sold for me for $50.

As long as the replacement fan mount to the board and heat sink properly. You need to be the judge on that.

I found fan/heatsink assemply at  eBay for under $30. However, there would be high risk in Yemeni customs(losing and stealing items) if I had purchased it.

http://www.ebay.com/itm/HP-Pavilion-DV6-6000-DV7-6

I would not use Ebay !!!

Thanks a lot,

**Firstly:**the kind of thermal compound is silicon, it isn't sliver.

The notes  written on the bottle of thermal compound are 'high conductivity, low bleed, Stable at high temperatures" in the properties of the silicone compound container.

Secondly:

BIOS is the motherboard BIOS used to load the Windows OS.

Reference: https://en.wikipedia.org/wiki/BIOS 

If you look at my two screen shots, you will see that BIOS version is unknown while external AMD GPU is selected, however, it is known while internal Intel GPU is selected. So, why does this happen?

Thirdly:

@As long as the replacement fan mount to the board and heat sink properly. You need to be the judge on that. @                                                                                                                                       

You think that the new fan would solve the problem(system has detected a cooling fan is not operating properly) if I purchased it for $50.

I sometimes hear the old fan now installed sometimes make spin and blows air out, and sometimes no spin, and not air blown out while my computer is working. This is strange.

I have been looking for the whole fan/heatsink assembly. 

If you wouldn't use eBay.com to purchase, then what else I can use if amazon.com, and others don't ship to Yemen.

Finally:

Could b that CPU-Z is not reading it properly, or that it is showing how much external memory is being used (-1274 is subtracted from your total memory).

If we follow what you have said, then, the total memory size of the Discrete AMD GPU  '1GB'(1024 MBytes) - '1274' = - 250MBytes.

Where did '1274' come from? I only have an external AMD GPU with a total memory size of 1024MBytes.

There is no internal Intel GPU memory size at all.