Intel Pentium III Xeon 1000 5V-12V socket: Slot 2
The Intel Pentium III Xeon 1000 5V-12V uses the Slot 2 slot. It is a 30.8 W single-core Cascades server part at 1000 MHz with 256 KB of full-speed L2 cache for Slot 2 boards with 5V-12V regulation.
- Socket
- Slot 2
- Launched
- August 22, 2000
- Cores and threads
- 1 and 1
- Base power
- 30.8 W
- Codename
- Cascades
- Segment
- Server
- Family
- Intel Pentium III Xeon
- Clocks
- 1.0 GHz
Intel Pentium III Xeon 1000 5V-12V specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Cascades (P6) |
| Clocks | 1000 MHz base, no turbo |
| Cache | 32 KB L1, 256 KB full-speed L2 |
| Processor base power (TDP) | 30.8 W |
| Manufacturing process | 180 nm |
| Memory support | Registered ECC SDRAM through the server chipset |
| Front side bus | 133 MT/s |
| Package | Slot 2 (SECC cartridge, 330 contacts) |
| Multiplier | Locked (7.5x) |
| Integrated graphics | None |
Motherboard compatibility
Intel Pentium III Xeon 1000 5V-12V needs a motherboard with a Slot 2 socket. Chipset by chipset data for this codename is not recorded yet. See the Slot 2 chipset list and the board maker's CPU support list.
Slot 2 at a glance
| Type | Slot, 330 contacts |
|---|---|
| Package size | n/a |
| Introduced | April 1998 |
| Memory | Registered SDRAM through the board chipset |
| Cooler mounting holes | Cartridge and retention cage |
What the Pentium III Xeon 1000 5V-12V is
The Intel Pentium III Xeon 1000 5V-12V is a 1000 MHz single-core server processor from August 2000. It runs one P6 Cascades core at 1000 MHz with no Hyper-Threading, so 1 core gives 1 thread. Cache is 256 KB of full-speed L2 with 32 KB of L1 on a 180 nm process. Power is rated at 30.8 W in a Slot 2 SECC cartridge on a 133 MT/s front side bus with a 7.5x multiplier on the 5V-12V regulator path.
The 5V-12V string shares clocks, cache and power with the 2.8 V string while fitting boards wired for higher input rails, which is why server lines stock one or the other. Intel launched both 1000 strings on August 22, 2000. The chip supports MMX, SSE and two-way SMP.
Matching gigahertz clocks with regulator choice suit Slot 2 lines built for the 5V-12V path. The SECC thermal plate carries the 30.8 W envelope. That is why the 5V-12V string shipped in 5V-12V server lines.
Socket and motherboard compatibility
The 1000 5V-12V fits Slot 2 servers wired for 5V-12V regulation. It needs a 330-lead SC330 board with a 133 MT/s bus and a BIOS that lists the 5V-12V Xeon 1000. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
5V-12V dual servers are the natural match. Boards listing the 5V-12V string accept cartridges with 30.8 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. Dual boards commonly interleave ECC pairs.
A 133 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 1000 2.8V such as Intel Pentium III Xeon 1000 2.8V keeps clocks and cache while changing regulator path. A Xeon 933 on the same list drops clocks.
A move to Foster Xeon needs Socket 603. The Slot 2 page lists the range for planning. Note: the queue row lists 31 W; this page uses the verified 30.8 W shared by both regulator strings.
Frequently asked questions
What socket does the Pentium III Xeon 1000 5V-12V use?
Slot 2. It is a 30.8 W Cascades server part at 1000 MHz in the 5V-12V variant.
What memory does the 1000 5V-12V use?
Registered ECC SDRAM through the server chipset.
What is the upgrade path from the 1000 5V-12V?
A 1000 2.8V on boards wired for that regulator.
Sources and verification
- List of Intel Xeon processors 1000 256KB 30.8W (Wikipedia)
- Slot 2 (Wikipedia)
- Pentium III Xeon datasheet SC330 (Intel)
Facts last checked against these sources on . Page last edited on .