[Pavilion dv5] Black screen, just one blink

[Masanijey]

Hi,

this is my configuration:

Product Name: Pavilion dv5-1005el

Operating System: Windows 10 (64 bit)

Had this problem: while I was normally working, suddenly the screen went grey, (not black, I could view a backgound light on the screen) and the laptop didn't respond to any input, so I forced the power off pressing the power button.

Afetr restarting, the computer normally power on, but the screen is now completely off, the lights blink just once, 2-3 sec after power on and then they stop blinking (I can't remember if this is the normal beahviour).

No repeated sequence, just one blink.

I tried to connect it to my TV with the HDMI cable: when I turn on the computer, the TV output automatically swith to the right source, but the screen is always black (but this makes me exclude a graphic issue).

Tried a BIOS recovery via USB, but when I start pressing win+B, I hear 6 beeps and nothing more.

It seems like a CPU fault: what do you think about?

Thanks

[EmeraldAvenger]

Hi there @Masanijey, 

The absolute best way to detect what the issue is classified as in this case is to go by the LED lights near the Caps Lock and Num Lock keys. When they blink in a sequence it means that an error is detected during the startup process. The number of blinks in the sequence indicates what component caused an error when it was being tested during start up.

Here is a link to the Computer Does Not Start and Emits an LED or Beep Code document for you to read over. You will notice that it has charts that will tell you what the blink code on the Caps Lock means.  In this case, you are correct, it in fact does seem like a CPU issue. 

You have a couple options at this point. You can go to the HP PartSurfer page to order a new CPU. Here is your HP Pavilion dv5 Maintenance and Service Guide in case you need it also. Alternatively, you can use the Warranty Checker to check the warranty status of the Notebook and then please use the following link to create yourself a case number:

Step 1. Open link: www.hp.com/contacthp/

Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Step 4. Scroll down and click on HP contact options - click on Get phone number

Case number and phone number appear.

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