AMD Sempron 2300+ socket: Socket 462

What the Sempron 2300+ is

The AMD Sempron 2300+ is a 1583 MHz single-core desktop processor from July 2004. It runs one K7 core at 1583 MHz with no turbo, so 1 core gives 1 thread. Cache is 256 KB of L2 next to 64 KB of L1 instruction and 64 KB of L1 data cache on a 130 nm process. Power is rated at 62 W in a Socket 462 package.

The 2300+ belongs to the Thoroughbred-B group on Socket A, model 8, with part number SDA2300DUT3D. It runs a 333 MT/s front side bus from a 166 MHz clock with a 9.5x multiplier at 1.60 V. AMD sold it as the second step above the 1500 MHz 2200+, with the same 256 KB cache and voltage for buyers who wanted a small clock lift without a new board or cooler. The chip supports MMX, SSE and Enhanced 3DNow instructions.

Model numbers on this family do not equal clock speed. The 2300+ rating compares the part to older Athlon Thunderbird baselines, while the true frequency stays at 1583 MHz. This naming explains why a 2300+ can run slower in megahertz than a similarly numbered Athlon XP from another core, even though both fit Socket 462 DDR boards.

Socket and motherboard compatibility

The Sempron 2300+ fits Socket 462 DDR boards with a 333 MT/s front side bus and a BIOS that lists Thoroughbred Sempron parts. It needs DDR slots and 1.60 V handling, not a Socket 754 board with an integrated memory controller. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Retail boards with VIA K series or nForce2 chipsets and DDR slots are the natural match, with the board maker CPU list deciding fit. A 333 MT/s board that already runs a Sempron 2200+ at 1500 MHz normally accepts the 2300+ with the same cooler class, since power stays at 62 W. Older 266 MT/s boards need a BIOS check for 333 MT/s Thoroughbred support. Forcing the chip into Socket 370 or Socket 754 can damage the package.

Memory, PCIe and cooling

Memory is DDR through the board chipset in a single channel. Boards commonly carry two or three DIMM sockets for modules matched to the 333 MT/s bus. The CPU carries no memory controller, so chipset timing decides stability and the usable capacity.

No PCI Express lanes come from the processor. A 333 MT/s front side bus ties the CPU to the chipset, while AGP 4x and PCI slots hang off the chipset for graphics and expansion. Board graphics, where fitted, comes from the chipset. Cooling clips to the socket lug centered on the exposed die. AMD warns that load above 133 N static on the die surface can crack the core, so the clip must sit flat with fresh paste. A 62 W rated cooler with normal case airflow suits the 2300+.

Upgrade paths

On Socket 462 the upgrade is the Sempron 2400+ at 1667 MHz or the Sempron 2600+ at 1833 MHz with the same 256 KB cache and 62 W rating, since all three share the Thoroughbred-B base and 333 MT/s bus. A Barton Sempron 3000+ at 2000 MHz with 512 KB suits boards with Barton BIOS support as a larger cache step. Beyond Socket 462 a move to Socket 754 needs a new board with DDR slots matched to the new chipset. The part lifts out with the lever open, so no soldered replacement logic applies.