Xeon Quad-Core Processors - HP DL165 - ProLiant - G6 Introduction Manual

Figure 1. Block diagram of dual-core Intel Xeon 3100 and 5200
L2 Cache
FSB
ProLiant servers supporting the Xeon 3100 sequence processors use the Intel 3200 series chipset
while Xeon 5000-based servers use the Intel 5000 chipset. These chipsets support Error Correction
Code (ECC) memory for a high level of data integrity, reliability, and system uptime. ECC can detect
multiple-bit memory errors and locate and correct single-bit errors to keep business applications
running smoothly.

Xeon quad-core processors

The quad-core Intel Xeon 3300 and 5400 series processors use 45-nm technology and an
architecture using two dual-core processors, each with a 6-MB L2 cache (Figure 2). Each core pair
shares a 6-MB L2 cache, and each of the two cores can access the full 6 MB if necessary. Xeon 3300
series processors support an FSB speed of 1333 MHz. Xeon 5400 series processors support 1333- or
1666-MHz FSB operation. Xeon-based ProLiant 100-series servers employing Xeon 3300 or 5400
processors use Intel 5000 series chipsets that support dual independent buses, DDR2 DIMMs, and PCI
Express I/O slots.
Figure 2. Block diagram of quad-core Intel Xeon 3300 and 5400 sequence processor
Xeon 3100: 6-MB L2 cache and 1333-MHz FSB
Xeon 5200: 6-MB L2 cache and 1066-/1333-/1666-MHz
FSB
sequence
processors
Xeon 3300: 1333-MHz FSB
Xeon 5400: 1333-/1666-MHz FSB
3