AMD Athlon XP 2800+ DTR socket: Socket 462

What the Athlon XP 2800+ DTR is

The AMD Athlon XP 2800+ DTR is a 2083 MHz desktop-replacement mobile processor from December 2004. It runs one K7 Barton core at 2083 MHz with no turbo, so 1 core gives 1 thread. Cache is 512 KB of L2 with 64 KB of L1 instruction and 64 KB of L1 data cache on a 130 nm process. The package is Socket 462 for large notebooks.

The 2800+ DTR shares its 2083 MHz and 512 KB rating with the desktop Barton 2800+ at 68.3 W from February 2003, which uses a 333 MT/s bus with a 12.5x multiplier at 1.65 V and part number AXDA2800DKV4D. DTR bins the same Barton base for notebook chassis with system maker thermal handling, rather than desktop tower coolers. This page omits a TDP rating because no opened source states the DTR mobile figure, while the desktop 68.3 W figure belongs to a tower bin with different cooling.

Desktop-replacement notebooks used DTR parts because they wanted desktop clocks without a separate desktop board. The 2800+ DTR gave large notebooks the same 2083 MHz throughput as the desktop 2800+, with battery life secondary to socket compatibility and DDR memory reuse.

Socket and motherboard compatibility

The 2800+ DTR fits Socket 462 desktop-replacement notebooks with DDR memory and Barton mobile BIOS support. It needs a notebook board with Socket 462 lands, not a Socket 563 microPGA board or a Socket 754 K8 board. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Compatibility stays inside the notebook maker list. The chassis heat pipe assembly and power tables are tuned for specific DTR models, so a swap needs the exact model listed for that chassis. Desktop Socket 462 boards may seat the chip, yet notebook power management and fan tables do not transfer. Forcing the package into the wrong socket can bend pins or crack the die.

Memory, PCIe and cooling

Memory is DDR through the board chipset in a single channel. SO-DIMM slots and ceiling capacity are fixed by the notebook design, with speed tied to the 333 MT/s bus. The CPU carries no memory controller.

Expansion comes from the mobile chipset. The front side bus at 333 MT/s ties the CPU to the chipset, while AGP serves graphics and PCI serves other devices. No PCIe lanes originate on the processor. Cooling is the notebook heat pipe assembly for the exact model, with fan curves set for DTR power levels. Dried paste and blocked vents raise temperatures quickly in desktop-replacement bodies, so service means cleaning and fresh interface material rather than a larger tower cooler.

Upgrade paths

On Socket 462 the 2800+ DTR is near the top of the DTR stack, so same chassis upgrades are limited to maker qualified bins at similar clocks. Desktop Barton 3200+ parts at 2200 MHz offer higher clocks in tower boards with desktop cooling and a 400 MT/s bus where supported. Athlon XP-M 2800+ standard power parts at 2.133 GHz suit Socket 462 notebooks with the right BIOS as an alternative mobile path. Beyond Socket 462 a move to Socket 754 needs a new notebook for Mobile Athlon 64 Odessa or Newark parts. The DTR chip removes with the lever, so chassis swaps need no solder work.