VIA CoreFusion Luke-Lite 800 socket: VIA BGA 368

What the CoreFusion Luke-Lite 800 is

The VIA CoreFusion Luke-Lite 800 is a single-core embedded processor that runs 800 MHz inside a 6 W envelope. One Nehemiah C5P core gives 1 thread with no turbo mode, and the module around it holds the VIA CN333 northbridge with S3 UniChrome graphics, so video, memory control, and the processor arrive as one soldered unit. VIA aimed it at always-on network devices, point of sale terminals, kiosks, and digital media players on Mini-ITX and smaller boards, where silent running matters more than speed.

Inside the module, the Nehemiah C5P core uses a 16-stage pipeline with MMX, SSE, and 3DNow! instructions plus the VIA PadLock engine for AES encryption and random number generation and LongHaul power management. Cache is 128 KB of L1 next to 64 KB of L2 running at the core clock. TSMC builds the silicon on a 130 nm process with a 47 square mm die, and the chip runs a 133 MHz base clock times a multiplier of 6 at 0.95 V. Average power sits near 4 W against the 6 W maximum, with a maximum junction temperature of 70 C.

Luke-Lite is the cost-tuned twin of Luke. Both carry the same Nehemiah core at clocks from 533 to 1000 MHz, but Luke pairs it with the CN400 northbridge for DDR400 while Luke-Lite uses the CN333 for DDR333. The 800 MHz Luke-Lite carries part number 2GA203 with a locked multiplier. Like every CoreFusion part it is soldered and cannot be replaced, so the board and the processor share one service life.

Socket and motherboard compatibility

The Luke-Lite 800 ships soldered on VIA BGA 368 embedded boards and cannot be removed or upgraded. There is no lever socket, no pin grid, and no retail box; the board maker solders the module at the factory next to a VIA south bridge such as the VT8237R series, and the device ships complete. VIA EPIA Mini-ITX and Nano-ITX boards are the typical carriers, pairing the module with memory slots, a PCI slot, LAN ports, and display outputs for kiosks and networked appliances.

Board choice fixes everything about the platform. Memory type, slot count, expansion slots, and display connections all live on the board, and no BIOS update can change the soldered processor. The module fits no socketed board and swaps with no other package, so a buyer evaluates the whole device rather than the chip. When the device outgrows 800 MHz, the replacement is the whole board, not a new processor.

Memory, PCIe and cooling

Memory is DDR1 in a single channel through the board chipset, at up to 333 MT/s on Luke-Lite boards with the CN333 northbridge. The processor holds its memory controller inside the integrated northbridge, so the board design sets the slot count and the maximum capacity. Plain Luke boards with the CN400 reach DDR400, which is the one memory advantage the non-Lite variant keeps.

No PCI Express lanes come from the processor. The database entries for these SKUs record no PCI Express from the chip, while board chipsets provide the actual expansion, such as the PCI slot found on EPIA Mini-ITX boards. Graphics come from the integrated S3 UniChrome core with MPEG-2 and MPEG-4 decoding acceleration, aimed at smooth media playback without a separate card. Cooling is the board maker heatsink for the exact chassis, and the 800 MHz options run fanless where the enclosure allows it.

Power and heat stay modest throughout. The 6 W maximum covers the worst case, average draw sits near 4 W, and the 70 C junction limit leaves room for small fanless enclosures. The 0.95 V core voltage at 800 MHz is part of why these devices run silent, with LongHaul trimming draw further at idle.

Upgrade paths

On VIA BGA 368 there is no CPU upgrade path because the chip is soldered, so a faster device means replacing the whole board. Within the CoreFusion family, boards with the 1 GHz Luke exist for heavier media work, and moving to one is a board swap rather than a chip swap. Nothing on this package reaches beyond 1000 MHz, so expectations should stay inside the embedded range these parts were built for.

A move to a newer VIA platform also means a new board on a different package. Later Eden and C7 parts use their own soldered packages with DDR2 support and faster graphics, and none of them seat on VIA BGA 368. For devices that must stay in service, spare identical boards are the practical upgrade path, since the processor cannot be refreshed on its own.