compaq cq40 blinking led forever

[arunmag]

Hai. My compaq cq40 is 2 year old. Now after i connectes my samsung s2 mobile in usb mode. My laptop freezes. I force shutdowned it. Now its not opening. Num and caps lock led blinks forever. I tryed clearing the cmos battery swapping ram. Removed wifi card. Nothing helped me. Plsss help me. Also tell me if there is problem in motherboardm how much does it costs inr.

[Cloud_Strider]

Review this document since you are receiving a blink code on the caps lock key.  I doubt connecting the S2 to the notebook is a part of the issue. 

Does the blink pattern match any of the ones listed?

Code descriptions

Use the following table to learn about the meaning of a code that your computer may encounter.

Code type Number of Blinks or Beeps Component Being Checked Condition Possible solution(s)

AC power adapter LED	Constantly on	Power adapter	OK. Power is being supplied.	None. The power adapter is likely not the problem.
AC power adapter LED	Constantly off	Power adapter	Power is not being supplied	Try a different power outlet. Replace power adapter.
AC power adapter LED	Continuous blinking	Power adapter	Insufficient power	Try a different power outlet. Replace power adapter.
Caps Lock/Num Lock	1	CPU	CPU not functional	Reseat replace CPU. Service
Caps Lock/Num Lock	2	BIOS	BIOS corruption failure	Restore BIOS from onboard backup (jumpers) Service
Caps Lock/Num Lock	3	Memory	Memory module error not functional	Reseat memory modules (see next section). Test memory from UEFI or BIOS. Replace bad memory modules. Service
Caps Lock/Num Lock	4	Graphics	Graphics controller not functional	Service
Caps Lock/Num Lock	5	System board	General system board failure	Service
Caps Lock/Num Lock	6	BIOS	BIOS authentication failure	Restore BIOS from onboard backup (jumpers) Service
Beep	Varies	Varies	Varies	Reseat memory modules (see next section). Service For more detail on the exact code, search the Internet for "beep code" and the manufacturer of your BIOS - such as AMI or Award.

Here are some examples of a blink pattern.

Blink, pause, blink, pause, and it continues. 

Blink, blink, pause, blink, blink, pause and it continues.

Do note that a pause is usually 3-4 seconds long.

[arunmag]

Pause is for 4 second and blinks unconditional forever. I removed hdd ram wifi card battery cd rom bios battery. Even then same.

[Cloud_Strider · Accepted solution]

If the blink code is blink, pause, blink, pause, then that indicates the processor has failed the POST test. 

I am afraid this will require the processor to be replaced to correct the issue.  Sorry.  😞

You can try contacting HP to get a quote for how much it would cost to repair and compare that to the cost having a local PC shop repair it. 

[arunmag]

Thank you. Guess i have to change the core. Its amd x2. But i heard. Laptop processor are embedded in the main board. Is it possible to replace it. Or whole motherboard??

[Cloud_Strider]

Some have the processor embedded, but most do not.  You are typically going to see embedded processors in smaller devices such as minis and tablets. 

I may be able to provide a more detailed answer if I have the product number. 

NOTE: Do NOT provide the serial number.

[arunmag]

Cq40 613ax
Vu499pa#acj

[Cloud_Strider]

It looks like this unit does not use an embedded processor based on the part store.

The processor is part number 532121-001. 

The motherboard is part number 578254-001. 

Let me know if that is the information you needed.