Intel Pentium III Xeon 700 2.8V socket: Slot 2

What the Pentium III Xeon 700 2.8V is

The Intel Pentium III Xeon 700 2.8V is a 700 MHz single-core server processor from May 2000. It runs one P6 Cascades core at 700 MHz with no Hyper-Threading, so 1 core gives 1 thread. Cache is 2 MB of full-speed ECC L2 with 32 KB of L1 on a 180 nm process. Power is rated at 29.6 W in a Slot 2 SECC cartridge on a 100 MT/s front side bus with a 7x multiplier on the 2.8 V regulator path.

Direct 2.8 V core feed suits server lines built for that rail, which is why Intel shipped the 700 in both regulator strings at matching clocks. Intel launched the 700 family on May 22, 2000. The chip supports MMX, SSE and four-way SMP.

Matching clocks and cache with direct regulation suit 2.8 V Slot 2 lines. That is why the 2.8V string shipped in 2.8 V server lines.

Socket and motherboard compatibility

The 700 2.8V fits Slot 2 servers wired for 2.8 V regulation. It needs a 330-lead SC330 board with a 100 MT/s bus and a BIOS that lists the 2.8 V 700 string. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

2.8 V rack servers are the natural match. Boards listing the string accept cartridges with 29.6 W heatsinks.

Memory, PCIe and cooling

Memory is registered ECC SDRAM through the server chipset, matched to the board sockets. The cartridge has no memory controller. Server boards commonly run ECC pairs.

A 100 MT/s front side bus ties each cartridge to the chipset, while PCI hangs off the chipset. No PCIe lanes originate on the cartridge. Cooling uses SECC heatsinks on the retention cage.

Upgrade paths

On the same slot, a move to a Pentium III Xeon 700-2M 2.8V such as Intel Pentium III Xeon 700-2M 2.8V is the explicit-2M twin at matching power. A 700 5V-12V changes regulator path.

A move to Foster Xeon needs Socket 603. The Slot 2 page lists the range. Note: the queue row lists 29 W; this page uses the verified 29.6 W.