AMD K6-2+ 533ACZM socket: Super Socket 7

What the K6-2+ 533ACZM is

The AMD K6-2+ 533ACZM is a 533 MHz single-core desktop processor from September 2000. It runs one K6 Sharptooth core at 533 MHz with no turbo, so 1 core gives 1 thread. Cache is 128 KB of full-speed on-chip L2 with 64 KB of L1 on a 180 nm process. Power is rated at 14 W in a Super Socket 7 CPGA package on a 100 MHz front side bus.

A mobile-tuned bin at the fall speed point gives the 533ACZM the same clocks as desktop 533ACZ strings with PowerNow tables, which is why quiet boards list the M string. AMD sold ACZM Sharptooth parts in September 2000 with desktop twins. The chip supports MMX, 3DNow+ and PowerNow.

Above-500 MHz clocks with a 14 W envelope suit fast Super Socket 7 towers with PC100 memory. The fall BIOS strings matter for the M suffix. That is why the 533ACZM shipped in late performance budget boxes.

Socket and motherboard compatibility

The 533ACZM fits Super Socket 7 fast desktops with mobile-tuned support. It needs a 321-pin board with a 100 MHz bus and a BIOS that lists K6-2+ ACZM strings. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Fast SDRAM towers are the natural match. Boards listing K6-2+ 533ACZM accept the chip with a 14 W cooler.

Memory, PCIe and cooling

Memory is SDRAM through the board chipset, matched to the board sockets. The CPU has no memory controller. Fast boards commonly run tuned PC100 pairs.

A 100 MHz front side 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 14 W cooler.

Upgrade paths

On the same socket, a move to a K6-2+ 550ACZ keeps the board for 17 MHz more at equal power when the support list names it. A K6-2+ 533ACZ such as AMD K6-2+ 533ACZ is the desktop twin at matching clocks. A K6-III+ with 256 KB cache trades clocks for cache.

A move to Slot A Athlon needs a new board. The Super Socket 7 page lists the range for planning.