Hi,
my notebook (HP8710p with Quadro320M) was recently serviced and the GPU chip was replaced (G84-710A2) with new one. At first try service changed the chip with different one that was not (half-) working (suspecting something like G86-730A2 from conversation). On the second try they supposedly ordered and installed the correct one (G84-710A2) so far ok, gpu now works, but the memory bus width reported by all tools is 64-bit instead of 128-bit and as result the memory is also cut in half.
So i would like ask you here if is there any solution to this or where could be problem? Service is saying, that there are two versions of the correct chip with same name but different bus widths (64/128) (?weird?). Or could it be some bios setting, or damaged memory, bad soldering, again "different" chip ... what could be the cause of this problem??

My college work is related to this particular hw configuration and gpu, so i trying to determine if it is possible to make it right and continue my work, or start everything over again on different pc.

Thanks in advance.

I think that You have not a real G84-710-A2 but chip remarked from G84-53. Is it like G84-710, but 64-bit.

Thanks for reply, it seems like a most probable cause...