Disappeared 1Gb ram on macbook air

[hdhieu]

Hi there,

1Gb of my Macbook air 13" (late 2010, core 2, 1.86ghz, 2gb ram) disappeared. Bank 1/DIMM0 is 1Gb DDR3 1066 Mhz and Bank 1/DIMM0 was empty.
Can anyone please advise me what to do. Thanks

 

[Gav2k]

Run the hardware test and see what's reported. But in all fairness your looking at a new logic board

 

[hdhieu]

AHT gave me this error: 4sns/1/c00000008: TN0D - - 124. Googled and someone said it's related to high temperature, is it correct?

 

[Rodrigo Yoshida]

Not sure it can help, but maybe reseting the PRAM/SMC would solve. Once I saw a MacBook Pro i7 with just one core working and reseting that fixed the problem.

 

[redheeler]

Although less likely, onboard RAM can fail. Chances are the only way you'll be able to fix this is with a logic board replacement, although 1 GB does meet the minimum requirement for Mac OS X Snow Leopard.