Acer ASPIRE 5520g (optical drive not showing in bios)

[Amraks]

Hey guys got a Acer ASPIRE 5520g here
Symptoms Optical drive not showing in bios only sometimes.
Have tested optical drive on other laptops seems to work with out flaw.

What could of went wrong I am stuck as to where to look.

Sounds like a heat issue.

Does anyone have a photo of this mainboard bottom and top?

as I have no camera here.

[Joun]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

Hello
It is common for that model to have problem and not showing optical drive.
The problem is in motherboard not in drive.It is also very common that it can not even pass initial screen(press F2 .. etc ) if you keep the drive in its place.
If you remove it it boots without any problem.

[ala_borbe]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

reflow chipset to fix

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

which chip would that be?

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

would that be nivida one?

[ala_borbe]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

yes

i guess its this one

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

Hey before I started this thread.

Thinking I had found a fault with the cdr connection pins jp25
I thought a area was shorted out so cleaned this up only to find out that these pins were meant to be like this.

Not sure if I have shorted something out as laptop won't start now even before I reflowed.

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

here is a picture on how I think the solder should go over the pins.
black being pins that are joined by solder.

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

the fan kicks up then it dies maybe it needs cpu paste

[trebo]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

the fan kicks up then it dies maybe it needs cpu paste

that's what happens on most laptops

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

done the cpu paste no go..

So should I reflow chipset again.

Would I need to touch gfx card?

[trebo]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

did you remove ODD and try it as Joun suggested in second post?
if so can you post what happened when you tried it?
EDIT. meant try the laptop not ODD

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

reflow works cd drive is there.

lol and I was right about my pins i stuffed up.

Thanks for everyones help

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

back again this time its a blank screen nothing on vga nothing on laptop screen.

I reckon it needs a reflow again. will try it tomorrow.

[tomodachi]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

back again this time its a blank screen nothing on vga nothing on laptop screen.

I reckon it needs a reflow again. will try it tomorrow.

Got two of them on my bench today, righ on the spot.
Almost every trouble on that model is related to MCP67MV-A2 Nvidia chipset.
Reflow and get rid of problems.

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

Yup did that now it works again.

started at 100 C got my temperature upto 320 C this time for about 10 minutes.
left the chip to cool, came back applied heat sink and fan, 20 minutes later picked up laptop and put it onto the test bench. started it up and it works.

Maybe I shouldn't open the case after its been running either that could of been my mistake last time..

I am going to burn it in.

Ordered a MCP67VM-A2 bga stencil for the chip for future use, when I have better gear this laptop might get a good repair just for some practice, by that time the laptop will be worthless lol.

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

just worked out there is no sound.

I think I knocked off a tiny smd and can't find it amazed it still loaded..

Would you be able to take a picture of chip.

[Amraks]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

lol tip don't have heat gun to close it blows them off.

It works but without sound. I am amazed it does work.

looks like this will be sitting in the cupboard. time to practice this better.

[dj_ricoh]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

If you work with heat gun the level you got is 1- 9.
I usually do it with 1.5 air level pumped and cheap dmm that has temp with a probe so I can see the temp from preheater.
P.s. nice to see that you solved the problem.

[tomodachi]

Re: Acer ASPIRE 5520g (optical drive not showing in bios)

just worked out there is no sound.

I think I knocked off a tiny smd and can't find it amazed it still loaded..

Would you be able to take a picture of chip.

[/IMG]