(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO

[gabiz_ro]

Can you take a macro photo of damaged area?
Maybe there is a way to fix it.
Board is Quanta SS8 ?
There are testpoints on data lines and other pins are easy to reconnect to initial trace.
What pin are damaged?

[kasar]

yeah, there are a lot of chances of fix your motherboard, also replacements for those are quite expensive, that was another reason I ordered sockets, they only need to be soldered once, leaving the motherboard "safe", the chips are way cheaper and can be replaced easier.

if you burned the traces, you may be able to solder a thing wire from an alternative soldering point of that trace, and solder a thiny wire.

however, that will be really relicated,and should be secured with hotglue.

and of course it isnt designed to be desoldered.

I may be a little annoying with the sockets stuff, but I found it really saved me time and from posible accidents, my board would be probably ruined without it ^^

about the cpu desoldering i think you need one of those hot airs stations and another cpu to be soldered with balls method instead pins one.

I didnt made those, however, I think it cant be done in normal conditions unless you have proffesional equipment.

about me, I still waiting for my proccesor upgrade to arrive home.

it didnt arrived yet, I hope I didnt got scamed ....

[jkbuha]

   

Not sure the HTC One and Tapatalk will render this pic as high res as it should, but let me know if it is sufficient.

How do I tell if it is a quanta board?

The damaged pins were on the bios chip, I've now ordered a few replacement ones (just in case this works).

[gabiz_ro]

I reffer to pad damaged,if you know how they are numbered,see dot marking pin 1 ,that's top view.
http://www.ps3devwiki.com/ps3/File:W25X16A_-_SOIC-8.png
Somewhere there must be some code on the board to identify model.
L511z from what I found use that Quanta board

Can't see anything clear on photo,I'm on the phone too right now,but even on PC ... Too dark and out of focus.

[jkbuha]

Attached a better version. I guess most of the pads are gone, and I'm not sure if they can be fixed at all.

[gabiz_ro]

Tell motherboard model to search schematic.

[jkbuha]

Ironic... it actually pointed me back here. @TimeWalker had stated a few years ago (god how long this post is) that our boards are actually Quanta.

Here is the high-level schematic: http://schematiconline.com/wp-content/up...5Z_SS8.png

[gabiz_ro]

I have schematic,hope that is same revision and don't differ to much from what is in schematic to what is on board.But until tommorow when I come home I can't help you any more.
Try to take a high quality photo of damaged area so I can draw what pins to connect and where.
Hope that all will be on same side of board.
Like I said I saw that data pins have some testpoints others are GND and Power,chip select write protect so even all pads are damaged there is highly possible to repair that.

[jkbuha]

Thanks. Here is the high res link:

http://www.mediafire.com/view/oh49hpcnhd...AG0384.jpg

I've found the schematic manual you indicated and a quick look at page 40 seems to point to the possible solutions (eg: connect pin pad 7 to R467 pin 2 etc). If I'm also reading this right, there are 4 test points connecting pins 1, 6, 5, 2 to T76, T80, T78 and T79 respectively. Let me know what you think.

Another question is: do you think with epoxy resin I could get the pads back onto the PCB again?

[follow_me]

Another question is: do you think with epoxy resin I could get the pads back onto the PCB again?

IMHO - Don't even try, it will be a mess
just solder the chip to test points and leave it there

next time - use a hot air soldering station , as it should be