AMD Athlon XP 2400+ socket: Socket 462

What the Athlon XP 2400+ is

The AMD Athlon XP 2400+ is a 2000 MHz single-core desktop processor from September 2003. It runs one K7 Thorton core at 2000 MHz with no turbo, so 1 core gives 1 thread. Cache is 256 KB of L2 on a 130 nm process. Power is rated at 68.3 W in a Socket 462 package with part number AXDC2400DKV3C. A duplicate cpu_list row repeats the same spec, so one page covers both entries. The cpu_list 68 W value matches the table 68.3 W after rounding, and the table value is used here.

The 2400+ Thorton uses a 266 MT/s front side bus with a 15x multiplier at 1.65 V. It shares clocks with Thoroughbred 2400+ parts at 2000 MHz, yet Model 10 stepping needs Thorton BIOS support. AMD placed it as the top 266 MT/s Thorton before 333 MT/s 2600+ parts. The chip supports MMX, SSE and Enhanced 3DNow.

Power rises with clocks across the Thorton stack. The move from 62.8 W on the 2200+ to 68.3 W on the 2400+ needs a stronger heatsink, even though the socket stays flat. That is why boards qualified for slower Thorton parts need a thermal check before fitting the 2400+.

Socket and motherboard compatibility

The Athlon XP 2400+ Thorton fits Socket 462 DDR boards with a 266 MT/s bus and Thorton support. It needs Model 10 microcode with 1.65 V handling. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Mainstream DDR towers are the natural match. Boards listing Thorton 2400+ accept the chip with a 68.3 W cooler. Older 200 MT/s boards need a full chipset and BIOS check.

Memory, PCIe and cooling

Memory is DDR through the board chipset in a single channel, matched to the 266 MT/s bus. The CPU has no controller.

A 266 MT/s bus ties the CPU to the chipset, while AGP and PCI hang off the chipset. No PCIe lanes originate on the die. Cooling uses the socket lug clip with a 68.3 W heatsink. Fresh paste and normal airflow suit the envelope.

Upgrade paths

On Socket 462 the steps are the Athlon XP 2600+ Thorton at 2133 MHz and 2083 MHz variants. Barton 2500+ parts at 1833 MHz offer 512 KB as a cache lift. Beyond Socket 462 a move to Socket 754 needs a new board. The 2400+ lifts with the lever, so swaps need no solder work.