Hello,
my HP 8770w was sold with a Dualcore-CPU. I am now using an i7 3920XM, but there are missing two RAM-holdings on this mainboard (Many manufactures leave them out on dualcore MBs ). The 4-RAM-MB is too expensive just for this approach. So I tried to solder the missing RAM-Holdings on the Mainboard by hand:
But the Laptop does not boot, if I add a RAM to the new holding (Same behaviour as like booting without any RAM). The Laptop still works, if I left the new holding empty.
QUESTION: Is it possible, that a 3-RAM-configuration principally does not work and I will have to add the 4th module? Have anyone here successfully expanded the number of RAM-holdings?