There is also a sister model FS without the Macrovision capability. All video encoders are connected to and controlled via the SMBus. There is also a sister model CX without the Macrovision capability. The video encoder used in the Xbox is more flexible, and can generate several different types of signals that adhere to various video standards and color formats. The Focus FS was used in v1.

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The Xcalibur video encoder is a custom chip manufactured for Microsoft. It seems that current memory technology can not run faster than around MHz DDR while maintaining stability without some form of cooling.

NVIDIA GeForce2 Pro

All video encoders are connected to and controlled via the SMBus. These include, but are not necessarily limited to: In order to make room for the BT chip and the traces that run to the output connector, Guillemot had to move the power components normally present in the upper left hand corner of the card. Sign up now Username Password Remember Me. The Focus FS was used in v1.

Although the PCB’s silkscreen does include an outline for the pin headers used to control the reference designed daughter board, Guillemot has chosen not to include the header but rather to incorporate the video-out chip on the back of the PCB. This is because it is no longer necessary to produce a separate PCB in order to allow video-output. As you can see, the BT chip forces the power components to the back of the card, extending it a full inch. Post Your Comment Please log in or sign up to comment.

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It seems the only way to find out more is through reverse-engineering techniques. Two of the video encoders Conexant CX and Focus FS also have extensive scaling and filtering functionality, which allows for overscan compensation in desktop-style “TV out” usage.

The Card – NVIDIA GeForce2 Pro

Both cards seem to require memory heatsinks in order to maintain proper operation of the memory. This method of heatsink attachment does not result in optimum heat transfer from the core to the heatsink; properly applied thermal grease would have done the job much better.

The video encoder used in the Xbox is more flexible, and can generate several different types of signals that adhere to various video standards and color formats. The make and model of the video encoder has varied through the years — three different video encoders have been used thus far. Click to Enlarge Click to Enlarge In order to make room for the BT chip and the traces that run to the output connector, Guillemot had to move the power components normally present in the upper left hand corner of the card.

This chip was used in Xbox versions 1. It was first used in Xbox hardware revision 1. All three are very similar in their features; they support various modes and are flexible enough to be able to output a VGA compatible signal which is not supported by the Xbox kernel.

The board continues in this recent tradition from Guillemot by demonstrating a blue PCB along with blue heatsinks that help to set it apart from the competition aesthetically, however that doesn’t buy it too much in terms of added value. Privacy policy About xboxdevwiki Disclaimers. Unfortunately, Guillemot chose to attach the heatsink and fan to the GeForce2 Pro core with only the use of side clips and a non-adhesive thermal pad.

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Retrieved from ” http: We are not sure if the reference design calls for these heatsinks Guillemot has used them in the past where they were not required but we suspect that the memory heatsinks are called for by NVIDIA.

Xcalibur The Xcalibur video encoder is a custom chip manufactured for Microsoft. They are, however, not register-compatible. There is also a sister model FS without the Macrovision capability.

Log in Don’t have an account? There is also a sister model CX without the Macrovision capability. Views Read View source View history. These include, but are not necessarily limited to:. Unfortunately, there is no official programming bbt869 available for this chip.

The capabilities of the Xcalibur chip, however, remain a mystery in this regard: In the case of the GeForce2 Pro, as well as the GeForce2 Ultra, this cooling comes in the form of memory heatsinks, in this case blue ones. Going along with the blue motif, Guillemot includes blue memory heatsinks RAMsinks on each of the eight memory chips.