One disadvantage of the CPU is that you need to change some jumpers to adjust the clock multiplier. This is the first and last time you will hear something about jumpers in combination with mobile processors. All the other processors with sockets are auto detected by the system.
Like the BGA1 processor the Micro-PGA1 CPU was used in slim notebooks.
Strange but true - the mobile Celeron processor is the fastest Mirco-PGA1 CPU. Before you try to get one to upgrade your notebook, you have to check with your notebook vendor about the TDPmax. The increase of the TDPmax cannot be neglected.