Zephyr

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The Zephyr motherboard has 3 different versions with minor differences.

Zephyr_A

Zephyr_A
Part NumberX810385
IntroducedLate 2006
TypeMotherboard
Used InXbox 360 (Original)
CPU TypeWaternoose
GPU TypeY1
CPU Process90nm
GPU Process90nm
eDRAM Process90nm
Nand Size16MB (Retail)
64MB (Dev)
Video OutputsA/V and HDMI
Wattage203W
12V Amperage16.5A
PredecessorXenon
SuccessorZephyr_B

The Zephyr_A is the successor to the Xenon and is used in the Original Xbox 360 series. It is the first motherboard to feature HDMI.

Notable Differences

Specifications

Zephyr_B

Zephyr_B
Part NumberX810387
IntroducedEarly 2007
TypeMotherboard
Used InXbox 360 (Original)
CPU TypeWaternoose
GPU TypeY2
CPU Process90nm
GPU Process80nm
eDRAM Process90nm
Nand Size16MB (Retail)
64MB (Dev)
Video OutputsA/V and HDMI
Wattage203W
12V Amperage16.5A
PredecessorZephyr_A
SuccessorZephyr_C

The Zephyr_B is the successor to the Zephyr_A and is used in the Original Xbox 360 series.

Notable Differences

  • The 90nm Y1 GPU has been replaced with the 80nm Y2 GPU
  • The PCIe pads under the GPU have been de-swizzled.

Specifications

Zephyr_C

Zephyr_C
X810387-007.jpg
Part NumberX810387
IntroducedMid 2007
TypeMotherboard
Used InXbox 360 (Original)
CPU TypeWaternoose
GPU TypeRhea
CPU Process90nm
GPU Process80nm
eDRAM Process80nm
Nand Size16MB (Retail)
64MB (Dev)
Video OutputsA/V and HDMI
Wattage203W
12V Amperage16.5A
PredecessorZephyr_B
SuccessorFalcon

The Zephyr_C is the successor to the Zephyr_B and is used in the Original Xbox 360 series. The part number is the same as Zephyr_B, as the PCB itself did not change.

Notable Differences

  • The 80nm Y2 GPU has been replaced with the 80nm Rhea GPU, which shrinks the eDRAM to 80nm

Specifications