AMD Athlon SFF 1600+ socket: Socket 462

What the Athlon SFF 1600+ is

The AMD Athlon SFF 1600+ is a 1400 MHz single-core small form factor desktop processor from 2001. It runs one K7 Palomino core at 1400 MHz with no turbo, so 1 core gives 1 thread. Cache is 256 KB of L2 on a 180 nm process. Power is rated at 35 W in a Socket 462 package with a 200 MT/s front side bus and a 14x multiplier at reduced voltage.

SFF 1600+ uses a model number like Athlon XP ratings while running at 1400 MHz, which is why the number exceeds the megahertz. Standard Athlon 1400 parts at the same 1400 MHz need 72 W in larger towers, so the SFF bin halves power for compact cases. AMD aimed the bin at small desktops with limited cooling. The chip supports MMX, SSE and Enhanced 3DNow.

Model numbers with plus signs need care here. The SFF 1600+ at 1400 MHz shares clocks with standard 1400 parts, yet the 35 W envelope against 72 W changes cooler and board expectations. That is why the plus suffix and SFF prefix stay in the model with a dedicated slug.

Socket and motherboard compatibility

The Athlon SFF 1600+ fits Socket 462 small form factor desktops with a 200 MT/s bus and Palomino SFF support. It needs a compact board with low-voltage paths. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Compact towers are the natural match. Boards listing SFF 1600+ accept the chip with a 35 W cooler. Standard 1400 parts need larger cooling.

Memory, PCIe and cooling

Memory is DDR or SDRAM through the board chipset. The board sets speed and capacity.

A 200 MT/s bus ties the CPU to the chipset, while graphics hangs off the chipset. No PCIe lanes originate on the die. Cooling uses the socket lug clip with a 35 W heatsink.

Upgrade paths

On Socket 462 SFF steps are limited, so same form factor upgrades stay inside SFF listings. Standard Athlon 1400 parts offer the same clocks with higher power in larger towers. Beyond Socket 462 a move to Socket 754 needs a new board. The chip lifts with the lever, so swaps need no solder work.