02-25-2012 10:23 PM
My 4 year old laptop display appears garbled. The BIOS screen appears greenish. Also once my operating system has started up, it seems that alternate columns of pixels are not lit up.
Now my laptop has been out of warranty for 2 years but i am pretty comfortable replacing parts myself. So i can try to source parts, but i am not sure if the LCD or the GPU is at fault. External display works fine, but if my understanding is correct that does not mean that the GPU is fine as it uses different buses for the internal and external output.
So is it the LCD or the GPU? Is there a way to know for sure?
02-26-2012 06:46 AM
Welcome to the forum!
It's the GPU.
Good luck with reviving the machine.
02-26-2012 09:23 PM
I agree, sounds like typical nVidia failure. You'll need a new system board unfortunately.
02-26-2012 11:02 PM
If you can get a board from a laptop made in august 2008 or later, that would be your best choice, otherwise I'd get one with Intel graphics.
I'd offer to get you one but the cost of shipping it half way around the world could be a factor, so you'd be best to look locally.
02-27-2012 12:26 AM
Thanks for the TuuS, yeah the shipping costs, etc would make it expensive to get it shipped from US.
Are Intel boards compatible with 14.1" T61s that originally came with Nvidia boards? I would presume ports, etc might be different, no? Any chance you know the FRU number of a compatible Intel board?
02-27-2012 06:25 AM - edited 02-27-2012 06:27 AM
Here is a list of some compatible boards.
The intel board has a different heatsink, but you can use the nVidia heatsink on intel, but cannot use the intel heatsink on nVidia. If your CPU is a Merom class (T5xxx/T7xxx) you can use either Merom or Penryn board. If it is Penryn (T8xxx/T9xxx) then you'll need a Penryn board, or a modified bios.
These numbers are for 14.1 widescreen systems ONLY.
You'll have no trouble installing an Intel board to replace an nVidia. Also note that there is no conclusive way to prove a board came from an 08/08 system unless you have the bottom case with label and the serial numbers match the bios numbers.
ps. let me know if you can't find an affordable board and I'll try to help.