RAM will not recognise
I was replacing the keyboard and mouse on a 2009 MacBook Pro that a friend of my families' had. When I had replaced all of the parts it came to the part where'd I have to test my repair job. so I power it on and all, and I'm greeted with a single tone that repeats every 5 seconds, according to Apple, that means there is no detectable RAM, even though I replaced the RAM with the original set of DIMMs. I then tried another matched pair from a 2010 MacBook Pro, and then I'm greeted with three beeps repeated every 5 seconds. Apple listed that as improper or unusable DIMMS are inserted. So the machine recognizes some DIMMs, but not others. And even so it refuses to boot.
Bu iyi bir soru mu?