Development Kits

There are a few hardware diferences and software diferences between development kits, but generaly the following hardware is known to be exist:

• Alpha I and II kits
• DVT3 Development Kits
• DVT4 Development Kits
• Debug kits

Further more are diferences internaly from diferent MCP revisions, GPU revisions and board layouts. Sega Chihiro boards seem to be based on DVT4 Development/Debug kits. either using overproduction or on purpose produced MCPX-X2 as found in the developement kits and debugkits.

Some rare boards are found with diferent MCPX chips that also have a special port near the CPU, and a extra USB port on the backside of the board (connected to the MCPX to unkown port) its been rumoured that the blocked USB port (unblocked on DVT3) on the back of Developement kits where either a leftover of these extra usb port or used for JVS development and/or testing.

Alpha

^[FIXME] Contructed using "off the shelf" hardware, probably before retail release from Intel. consisting of:

Alpha I

• Intel VC820, running a prerelease Bios
• 128Mb RDRAM with an terminator
• 600Mhz CPU
• Nvidia Geforece3 NV20 prerelease hardware? ^[FIXME]
• An OPTI 82C861 2 USB port PCI card
• Intel 82559(ic) Network card ^[FIXME]

These where then programmed by use of a recovery disk that "recovered"

Apha II

The Alpha II was a upgrade kit or constructed the same as a Alpha I with the following upgrades:

• 733MHz CPU SL3XN^[FIXME]
• Nvidia Geforce3 NV20 (64MB ram) with a Preretail firmware

An supplied Recovery made the nececairy firmware upgrades^{[citation needed]} and updated the dashboard.

Franken Alpha

This is a listing of notes on how to make a Alpha I or II yourself, also known as a FrankenAlpha/

Same hardware as a Alpha I/II, but you dont seem to need the preretail firmwares or bioses. Also, any Geforce3 is rumoured to work, as long as the GPU is of the NV20 series. The AV out suboard isnt nececairy, as VGA seems to work fine. color or diferent kinds of fans, cooling blocks or OEM vendor names doesnt seem to matter. The Opti usb board can be green, yellow or black. as long as the IC sports the 82C861 wording. if the VC820 sports any USB or Sound, it will not be used, the listed hardware boards are used instead, regardless of other hardware. (drivers arent in the kernel).

Posible solutions on fixing a (franken) alpha

IDEX: hard disk not configured (status=51).
HDD too small

IDEX: hard disk not configured (status=ff). 
HDD on the wrong bus, put on primairy channel.
(maybe wrong place on the cable itself)

IDEX: hard disk not found (status=7f).
HDD not connected

MP: No video output because you are using an older video card.
Well, insert a Geforce3 card (NV20 based)

WRN[XNET]: EnetInitialize failed: 0x801f0001
Logo loads, with a halt when the sparkly bit is on the B of Xbox.
The network card is missing, insert a GD82559 based intel network card
FCC: EJMNPDALBANY (worked for me)

[XNET]: NicExecuteActionCmdAndWait failed! 
WRN[XNET]: EnetInitialize failed: 0x801f0001
Network on wrong pci lane or no screen
* Tested Slot 1 as good (real close to the GPU, would not recommend)
* Tested Slot 2 as not good
* Tested Slot 3 as not good (*** Assertion failed: hwres.ResourceData.Address[0].Type == CmResourceTypeMemory
* Tested Slot 4 as good
* Tested Slot 5 as not good
These might be wrong for official alphas or only for my particular motherboard

Debug

Shaped and main parts consist of retail hardware with the following differences:

• 128MB ram instead of default 64MB ram
• MCPX revision X2, thus capable of running only Debug signed code^[FIXME]
• Hardisks loaded with retail and Debug shell files

DVT3/DVT4

Harddisk is said to be locked by default with a 16size byte 0x00 key, but allowing to run with an unlocked harddrive of any size(larger then 20GB^{[citation needed]} for minimal OS). All functions a debug with the addition of:

• DVD emulation
• Kernel_Debug over a dedicated IO board