I was told the motherboard needs replacing

if you still have 1 month warranty its best to get it sent off now to be fixed otherwise it may be rather expensive to fix yourself the graphic card is onboard the motherboard so its all in one

very sorry to tell you that the lcd has gone bad because your laptop shows exact symptoms of this case.
As per what some HP costumers have told me HP takes this as a physical damage and does not give them a warranty even if it is in the warranty cover
Finally you will need to get it replaced

This is the most expensive fix after a motherboard and may cost you $180 or 8000-9000 INR

If it has problems starting windows while on battery, that could indicate processor AND motherboard issues- since the processor needs to shift to lower voltage when on battery, and the motherboard needs to be able to fully function on battery. The touchpad issue may be secondary to the underlying problems. If you are under warranty, get it into the depot for a repair. If not, your best step would be to get a replacement battery- if the issue is still there, unfortunately it would be almost as expensive to get a different laptop as getting replacement processor and motherboard for your system

I’m happy to help further over the phone at https://www.6ya.com/expert/susan_42b401e0b1603d8a

I would not start with the motherboard right away. Try updating your drivers first. Here is a link for Nvidia drivers. Then try replacing the graphics card if updating the driver does not work. Motherboards can be expensive to replace, even if the part is not costly the labor can be.

You will need to locate the appropriate driver for your card and operating system, download it, and run it to install it.

It's true that with a laptop, replacing some parts means replacing the motherboard as they are integrated parts, this applies with the sound card. If your laptop is under warranty then you should be able to get it fixed, otherwise you need to weight the cost of replacing the motherboard verses buying a new computer. Seeing as how the motherboard in a laptop is pretty much half the computer, it may be cheaper to buy a new one.

Do you get power?

If not, when you remove the battery do you get power?

If there is absolutely no power to the laptop (and you know the AC adapter is ok) then it's hardware failure. If its new enough, get it warrantied through whoever sold it to your grandma, or Toshiba.

If your 5150 is off warranty, you have a serious problem.
Replacing the motherboard in a laptop is a very tricky and potentiallydangerous thing. If you are not a trained technician, I would recommendthat you take it to a professional.
Also, the cost of the motherboard and its installation is most likelyto be close to the price of a new or used machine. Perhaps this is abetter option.
Another thought occurs to me, if the machine works fine in every other way maybe you can learn to live without sound?
More info you might find interesting is here

If you've been told the motherboard needs replacing it could be true, especially in older laptops. Thinks get hot, brittle, and then a circuit gets broken. I recently had new motherboards installed in two Dell Inspiron 8200 computers. I found the boards on ebay for $70 ea. and had a local shop install them for another $70 ea.

Keep in mind Ram and video cards are common failures too.

There are quite a few diagnostic utilites out there to check for yourself before replacing the motherboards. If you want to spend the time look for ones from your computers manufacturer.
Let me know if this helps you

Hi

replacing motherboards on laptops out of warranty normally works out too expensive...

And yes, you would more than likely need to replace the mainboard, since almost all components of laptops are part of the mainboard...

The PS2 slim motherboard is pretty resilient, except when it comes to Lightning. if the PS2 slim will not Boot up and show the memory card or anything, the Emotion Engine processor on the motherboard is likely toasted.

 

If you want to fix it, you will need to get on Ebay, and find a Broken PS2 slim theat will not read disks. Be suire you know that the broken one will boot up before bidding.  I say do this, becasue it will not be worth fixing if you buy  a new Motherboard. As new PS2 slim motherboards cost around $75. 

 

You can send the PS2 to the Playstation Clinic in South Carolina if your in the USA. I will diagnose it and fix it if I can without replacing a motherboard.  The cost for this is $31 including Return shipping and a 90 day warranty. No charge if I find it needs a motherboard and you do not want to  replace the motherboard. I run the website www.playstationclnic.com and we can replace a motherboard, but will not repair one. Too expensive to repair. Time is money.   The charge for replacing a motherboard including return shipping is about $85 for new motherboard, or $65 for a used motherboard. . This includes a 90 day warranty as well.