Are you saying that Vista is running now?
Yes, but i had to do a repair upgrade since windows does not work properlly, it does not use the full potential of the new CPU and task manager still reported a single core CPU and 2GB of RAM, the repair upgrade solved that, now i need to install all the updates and the Extended Kernel, i will also try again with 4GB just in case.
P.D. The computer booted and the bios correctly reported the 4GB of RAM, but vista upon starting to boot failed, the boot animation just look corrputed and never started loading, and if i tried booting an install disk it gave me a blue screen with the error: PFN_LIST_CORRUPT, i looked up and it means a problem with RAM
one user of this laptop reported running it with 4GB of RAM, but it was with a single 4GB stick, and another user reported 5GB and submited it to CPU-Z database, it seems that the RAM slots have some sort of preference, since my laptop could not boot windows with 3GB having the 1GB stick in the top, however switching places worked, i suspect that the bottom slot only supports up to 1GB of RAM but the top one, 4GB is somehow supported, making the maximum amount ever tried to be, 5GB in this exact configuration