- There's a new XBox 360 Jasper motherboard with a 4gbit Samsung NAND inside. This will give users 512Mbytes internal Memory Unit compared to the old Jasper motherboard which came with 256Mbytes.
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pictures of a new Jasper motherboard with a 4gbit Samsung NAND inside.
To quote: This XBox 360 is a Japanese Arcade SKU made on April 9th 2009. The motherboard still seems like a Jasper-model, only real change seems to be the NAND.
The extra space is all used to give you a larger internal memory unit. The original Aracde Jasper has a 2gbit NAND and gave users an ~214MBytes of usable internal memory as around 16MB is used by Microsoft for kernel/keyvault/dash etc.
So we guess the new one should give you ~496Mbytes of usable internal MU.