Macbook Pro Ram Issues?

Discussion in 'MacBook Pro' started by XxpikachuxX, Oct 15, 2013.

  1. XxpikachuxX macrumors 6502

    Jan 24, 2009
    Hello, I have a macbook pro with 2.4 core 2 duo and a 250 SSD, and 8 GB RAM ( 2 x 4GB). The thing is every time i do a Mac hardware test with the DVD it came with I get this Error code 4MEM/1/40000000: 0x7c46a990. I have 2, 1 gb ram also and when i combine 1 gb and a 4 gb ( i try to combine all different ways) I dont get and error code i only get the code when the two 4 gb are together:confused: when i was using 8 gb I was having alot of Kernel panics and SHUT DOWN messages, i will wait and see if i get anything with 5 gb:(:apple: Please help me? thanks in advance
  2. nickandre21 macrumors 6502a

    Jun 21, 2012

    just a wild guess, could be the 4 gbs are not identical like latency etc? or maybe you have exceeded the max installable capacity.
  3. XxpikachuxX thread starter macrumors 6502

    Jan 24, 2009
    They are both PNY 4 GB they came together, and the max memory for my laptop is 8 GB so i should be fine :(
  4. Starfyre macrumors 68030


    Nov 7, 2010
    Might be the RAM itself, would not usually go for PNY ram. Kingston, Corsair, or Crucial.
  5. MeUnix macrumors 6502

    Aug 21, 2013
    San Francisco
    Sounds like one of the RAM sticks may be the issue. I'd recommend Crucial RAM.

    - Kyle

Share This Page