Jasper

Jasper is the codename of the fifth motherboard revision for the Xbox 360. On Jasper motherboards found within Arcade SKUs, this Xbox 360 Motherboard revision features an onboard memory unit to facilitate the NXE Dashboard.

The connections required to dump/flash the NAND are the same as all previous models.

Performing the SMC Hack requires the same wiring as Zephyr, Opus, and Falcon mainboards. This is a slightly different set of connections than those required for the Xenon mainboard.

Jasper (V4.0)

• Consoles: Arcade 256MB & 512MB, Pro/Premium 60GB, Elite 120GB & 250GB and Resident Evil 5 console
• 65nm IBM CPU
• 65nm ATI GPU
• 80nm eDRAM
• 150 Watt PSU (12V rated for 12.1A, new connector)
• Arcade Edition Larger Flash 256MB Hynix HY27UF082G2B or 512MB Hynix HY27UF084G2B on-board flash, up from 16MB HY27US08281A flash, to accommodate the NXE update.
• New Southbridge "PSB" chipset
• Same heatsinks as Falcon
• 3 pin fan connector.
• Shipping with LiteOn 7XXX/8XXX/V2/9XXX DVD-Drivers.
• Fixes red ring of death (RROD) due to the redesigned GPU

Jasper/Kronos (V4.1)

Same as Jasper (V4) other than some minor changes.

• Consoles: Arcade 512MB, Pro/Premium 60GB, Elite 120GB & 250GB, Modern Warfare 2 consoles and Final Fantasy 13 consoles
• New Kronos1 GPU stepping
• 65nm IBM CPU
• 65nm ATI GPU
• 65nm eDRAM
• Arcade Edition Larger Flash 512MB Hynix HY27UF082G2B on-board flash, up from 16MB HY27US08281A flash, to accommodate the NXE update.
• Shipping with Lite-On 8XXXV2/9XXX DVD-Drivers.
• JTAG Hack / SMC patched on CB level
• Removes 8 chips of 64MB RAM option, all boards now using 4 chips of 128MB
• Xenon style GPU heat sink with Falcon style CPU heat sink
• Special edition consoles: Modern Warfare 2 Consoles
• Last of the original style 360 systems
• Fixes E 74 error due to the redesigned eDRAM