Old Probook 4710s weird bios caps lock code

Hi there,
I got Probook 4710s from my friend. This notebook is extremly slow and lags, but it works. Ican get to bios, but bios is slow too.
When I see HP bios logo CAPS LOCK blinks 5 times and continue to glow? Then it start to boot system (very slow). What does it mean??
The notebook works normal when I change to more powerfull adapter (65W->90W). Can i damage the notebook with this more powerfull adapter? Another way to solve this problem?
Sorry for my English 

Dear Customer,
Welcome to HP Support Forum and we are glad to assist you.
It looks like you are having multiple issues with your Notebook.
We will surely assist you with this.
According to the message you have posted Its hard to find out if it's a Hardware/Software Issue. This issue possibly occurred due to recent changes made if any
I would kindly request with you to test your Notebook if it works slow even in Safemode:
Step 01. Turn OFF the PC
Step 02. Power ON the PC and keep tapping F8 Key
Step 03. Select Safe mode from the Advance Boot Option list
Step 04. Check the behaviour of the Notebook by working on basic Applications [Word/Excel]
Step 05. If you have any unwanted startup items and applications please remove that also
Step 06. Please Reboot/Restart the PC in Safe mode
Note: Incase if your still facing the issue even after all this, I would request with you to continue the troubleshooting
by performing Hard Drive and Memory Test as shown below:
1. Turn OFF the Notebook
2. Power ON the Unit and keep tapping the Escape Key during the start up to enter the Start-up Menu
3. Now here, Please select the BIOS option [F10] and under the Advanced or Diagnostic tab
4. You should find the facility to run tests on both the Hard Drive and Memory
Note: Please perform these two tests and post back with the details of any error messages
Please click on the link shown below to find the steps involved in performing a Hard Drive Test
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00439024
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c01443317
Hope this helps, for any further queries reply to the post and feel free to join us again
"I work for Hewlett-Packard"
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* * * * * Please mark Accept As Solution if it solves your problem * * * * *
Regards,
K N R K

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