Thermal Algorithm

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The Xbox 360 uses a dynamic Thermal Algorithm in order to control the temperatures of the CPU, GPU, and eDRAM dies.

Temperature Targets

Original Xbox 360

Board CPU GPU eDRAM
Xenon 80C 83C 85C
Xenon (Refurb) 80C 75C 78C
Zephyr_A 80C 83C 85C
Zephyr_B/C 80C 75C 78C
Falcon 80C 75C 78C
Elpis 80C 75C 78C
Jasper 80C 71C 73C
Tonasket 80C 75C 77C

Xbox 360 S and E

Applies to Trinity, Corona, Waitsburg, Stingray, and Winchester.

CGPU Hot Spot CGPU Average eDRAM
82C 78C 76C

Thermal Overload Temperatures

Original Xbox 360

Board CPU GPU eDRAM
Xenon 100C 110C 117C
Xenon (Refurb) 100C 100C 102C
Zephyr_A 100C 110C 117C
Zephyr_B/C 100C 100C 102C
Falcon 100C 100C 102C
Elpis 100C 100C 102C
Jasper 95C 90C 92C
Tonasket 95C 90C 92C

Xbox 360 S and E

Applies to Trinity, Corona, Waitsburg, and Stingray.

CGPU Hot Spot CGPU Average eDRAM
89C 82C 82C

Applies to Winchester.

CGPU Hot Spot CGPU Average eDRAM Area
91C 82C 91C