HP Pavilion DV7-1245DX No boot/POST, Caps Lock and Num Lock lights blink once repeatedly

[TownvilleRepair]

I agree with qjuantum. After I posted here, a day or two later the laptop failed to boot again. So I reseated that other chip, and the laptop is back up and running fine. This is the chip being mentioned:

 http://i18.photobucket.com/albums/b115/Imagerat/dv7_chip_zps0cf961ad.jpg

pcgal03, I describe the method here. I now apply heat after the solder is melted to at least a 20 count. Be sure to remove any plastic sheeting from the board before you begin (don't want a melted goop). If someone can do their own repairs, by al means go for it. I don't want to turn this into an ad opportunity, but I will mention I am in Upstate SC.

[Medmison]

Really the led combo says CPU, but you have to swap motherboard? What kind of logic is that?

I just bought a new processor and don't have money for a motherboard so now what.

Now that just SUCKS. . .

[AxshunJaxun]

The logic is if the CPU socket is bad, it's going to seem to the machine like the CPU is not there or something is wrong with it. I'm very sorry that you've already spent money on a new CPU. Perhaps you can return it?

I try to always catch these and I'm sorry I didn't. I always recommend putting money toward a new computer or saving for a new computer because computers are just like any other major appliance or a car. Once you've replaced something major (critical to functionality and expensive) like the motor/CPU/motherboard, you may get away with another year or so of proper functionality from it before something else needs to be replaced. I only recommend buying the replacement parts if computer repair is just a hobby for you or you just happen to have that kind of extra money. 

Also, like in your situation, the error messages can indicate multiple components as possible causes. If I may make a suggestion, I would try to see if you can RMA that processor with the seller. Maybe you found out it isn't an exact match? They all have different return policies. 

[Medmison]

sorry for any negative comments, but I just got done replacing the processor which isn't the easiest feat due to the tiny parts and the delagacy of the product. So the expectation of the code plus the confirmation everything went smoothly back together was building up a hope of what was later crushed.

Makes sense from the feedback you gave, just wish the motherboard wasn't the cost of a new computer even used and I would be fine but , , , yea not going to happen.

thanks for your feedback.

[qjuantum]

Did you guys not read the thread? There are some of us that just reballed the I/O controller chip and the issue was fixed withouth the need to purchase a motherboard. That is the easiest, more cost effective solution to this problem. Just look a few posts behind yours.

[AxshunJaxun]

@Medmison 

No worries and thank you for your feedback also. I can't officially advise on any of the other procedures suggested on the thread. You can give them a try if you want. I just can't guarantee that they will work and it is easy to permanently disable the motherboard using some of those procedures. So just be aware it is done at your own risk. (But in cases like this when the computer won't turn on, you don't really have anything to lose.) 

[fxhands]

did the soder trick, or rather my son-in-law did.  worked at his house and when he brought it back to my house back to the blinking light and a long wait to boot up.  any thoughts?  Thanks

[mewiNieisada14]

I have the same problem as vns_firefly, I tried evrything but still doesn't work.
But before this happened I installed my Microsoft Word 2010 used it for an hour and then I shut down normally.
Suddenly in the morning when I opened it, it was actually shut down twice because my  battery is not in a good condition. What am I going to do now? Is it because of the installation or because it wasn't shut down properly?

[SuperMario1]

Hello mewiNieisada14. To narrow down the issue effectively, I would like you to troubleshoot using this document: https://support.hp.com/us-en/document/c05336130 (Link Updated 04/26/2017)

Please let me know your results after following this troubleshooting, because it will narrow down the issue. I'm only here to help!

Mario

[frostwise]

I have the same problem. No video on screen and on plugged in  monitor. When i click the Start button,  fan spins and then stops. MediaSmart  bar under the display, lights up and stays on. After 10 seconds capslock & numlock begin to blink about 1time per 2-3 seconds without stopping. I replaced the processor but it did not help. Does anyone can help?