MacBook freezes after RAM upgrade
Hello, Yesterday I upgraded my RAM from 2x 1GB sticks and added a 4gb RAM stick...so in total I have 5GB RAM.
When I click on 'about this mac' it shows up as 5GB RAM however sometimes it only shows up as 4.75GB or 4GB RAM- why am i losing a gig of RAM sometimes?
After the upgrade and I started to encounter problems. When I close the lid the macbook would restart by itself. Sometimes when I open the lid it just shows a black screen where I have no other option but to manually restart the macbook. What could I do to resolve this problem?
I have tried resetting the PRAM and the SMC, but no change.
Thanks, Michael.
Is this a good question?
2 Comments
I went into terminal to find out the wake reason...this is the code showing so I have copied it.
Michael-Sius-MacBook:~ michaelsiu$ syslog |grep -i "Wake reason"
Wed Jun 13 15:50:19 Michael-Sius-MacBook kernel[0] <Debug>: Wake reason = OHC1 EHC1
Wed Jun 13 15:50:28 Michael-Sius-MacBook kernel[0] <Debug>: Wake reason = OHC1 EHC1
Wed Jun 13 15:51:54 Michael-Sius-MacBook kernel[0] <Debug>: Wake reason = OHC1
"OHC: stands for Open Host Controller, is usually USB or Firewire. If you see OHC1 or OHC2 it is almost certainly an external USB keyboard or mouse that has woken up the machine."
I do not have anything external attached to it?
by Michael
Any further help anyone? Thank you
by Michael