
Item | Specification |
Power global states | G3 Mechanical Off - This off state is entered through a |
| mechanical means; no electrical current is running through |
| the circuitry and it can be worked on without damaging the |
| hardware or endangering service personnel. Except for the |
| |
| G2/S5 Soft Off - OS initiated shutdown. The computer |
| consumes a minimal amount of power. No user mode or |
| system mode code is run. It is not safe to disassemble the |
| machine in this state. |
| G1 Sleeping - The computer consumes a small amount of |
| power, user mode threads are not being executed, and the |
| system “appears” to be off. It is not safe to disassemble the |
| machine in this state |
| G0 Working - The computer dispatches user mode |
| (application) threads and they execute. It is not safe to |
| disassemble the machine in this state. |
| S4 |
| special global system state that allows system context to be |
| saved and restored (relatively slowly) when power is lost to |
| the mainboard. It is not safe to disassemble the machine in |
| this state. |
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Hardware Specifications and Configurations |