The first - When your system goes into sleep mode on its own its likely a SMC issue. Lets try resetting the SMC. Follow this Apple TN: [http://support.apple.com/kb/HT3964|Intel-based Macs: Resetting the System Management Controller (SMC)]. In addition you need to check your battery. I would recommend this gem of an app: [http://www.coconut-flavour.com/coconutbattery/|coconutBattery]. Take a snapshot of what it reports and post it here for us to see.
+
The first - When your system goes into sleep mode on its own its likely a SMC issue. Lets try resetting the SMC. Follow this Apple TN: [http://support.apple.com/kb/HT3964|Intel-based Macs: Resetting the System Management Controller (SMC)].
-
The second:
+
In addition you need to check your battery. I would recommend this gem of an app: [http://www.coconut-flavour.com/coconutbattery/|coconutBattery]. Take a snapshot of what it reports and post it here for us to see.
-
Sleep wake issues like you describe are often caused by background running processes.
+
The second: Sleep wake issues like you describe are often caused by background running processes.
Try this using an external hard drive which had a clean OS on it (nothing else) see if your system reacts any different. If it does you have some work to isolate out whats waking up your system.
I suspect you have two issues here:
The first - When your system goes into sleep mode on its own its likely a SMC issue. Lets try resetting the SMC. Follow this Apple TN: [http://support.apple.com/kb/HT3964|Intel-based Macs: Resetting the System Management Controller (SMC)]. In addition you need to check your battery. I would recommend this gem of an app: [http://www.coconut-flavour.com/coconutbattery/|coconutBattery]. Take a snapshot of what it reports and post it here for us to see.
The second:
Sleep wake issues like you describe are often caused by background running processes.
Try this using an external hard drive which had a clean OS on it (nothing else) see if your system reacts any different. If it does you have some work to isolate out whats waking up your system.