XMB Reference Thermal Solution, Operating Environment

8XMB Reference Thermal Solution

Intel has developed one different reference thermal solution designed to meet the cooling needs of the E8500/E8501 chipset XMB component under operating environments and specifications defined in this document. This chapter describes the overall requirements for the XMB reference thermal solution including critical-to-function dimensions, operating environment, and validation criteria. Other chipset components may or may not need attached thermal solutions, depending on your specific system local-ambient operating conditions. For information on the Intel® 6700PXH 64-bit PCI Hub, refer to thermal specification in the Intel® 6700PXH 64-bit PCI Hub Thermal/Mechanical Design Guide. For information on the ICH5, refer to thermal specification in the Intel® 82801EB I/O Controller Hub 5 (ICH5) and Intel® 82801ER I/O Controller Hub 5 R (ICH5R) Thermal Design Guide.

8.1Operating Environment

The reference thermal solution was designed assuming a maximum local-ambient temperature of 57°C. The minimum recommended airflow velocity through the cross section of the heatsink fins is 300 linear feet per minute (lfm). The approaching airflow temperature is assumed to be equal to the local-ambient temperature. The thermal designer must carefully select the location to measure airflow to obtain an accurate estimate. These local-ambient conditions are based on a 35°C external-ambient temperature at sea level. (External-ambient refers to the environment external to the system.)

The fasteners associated for this reference thermal solution is intended to be used on 0.062” thickness motherboard.

8.2Heatsink Performance

Figure 8-1depicts the measured thermal performance of the XMB reference thermal solution versus approach air velocity. Since this data was measured at sea level, a correction factor would be required to estimate thermal performance at other altitudes.

Figure 8-1. XMB Reference Heatsink Measured Thermal Performance vs. Approach Velocity

	5.5
(°C/W)	5
	4.5
	4
ca	3.5
Ȍ	3.5
Ȍ
	3
	2.5
	0	100	200	300	400	500	600
				Flow Rate (LFM)

Intel® E8500 /E8501 Chipset North Bridge (NB) and eXternal Memory	37
Bridge (XMB) Thermal/Mechanical Design Guide

E8501 specifications

The Intel E8501 is a high-performance server processor that belongs to the Intel Itanium 2 family, designed primarily for enterprise-level demands. With its advanced architecture, the E8501 targets mission-critical applications that require reliability, availability, and serviceability (RAS) alongside superior computational power.

One of the key features of the Intel E8501 is its 64-bit architecture, allowing for the handling of larger data sets and improved performance for applications that demand extensive computations. This architecture is built on Intel's Explicitly Parallel Instruction Computing (EPIC) design, which enhances instruction-level parallelism and enables efficient processing of multiple instructions simultaneously, resulting in faster execution of complex tasks.

The E8501 processor is equipped with a maximum clock speed of 1.6 GHz and supports 4MB of L3 cache, significantly improving data retrieval speeds and overall throughput. The chipset accommodates up to 64GB of RAM across four DIMM slots, thus providing ample memory for demanding applications, such as databases and high-performance computing.

Additionally, the E8501 incorporates Intel's Advanced Smart Cache technology, which allows multiple cores to share the cache dynamically. This enhances performance by reducing latency and improving bandwidth for multi-threaded workloads. The processor also employs a dual-core design, which means it can execute multiple threads concurrently, thus maximizing processing efficiency.

Furthermore, the E8501 processor provides support for advanced virtualization technologies, enabling multiple operating systems to run on a single server instance. This capability is essential for data centers managing diverse workloads and consolidating IT resources.

Power efficiency is another significant characteristic of the Intel E8501, featuring enhancements that reduce power consumption while maintaining performance. This is critically important in enterprise environments where energy costs are a substantial concern.

The processor is also equipped with built-in security features, including data encryption capabilities and mechanisms to protect against certain types of cyber threats. These features ensure that sensitive enterprise data remains secure.

In summary, the Intel E8501 stands out as a robust server processor designed to meet the rigorous demands of enterprise-level applications. Its combination of 64-bit architecture, advanced caching mechanisms, virtualization support, and exceptional performance makes it a compelling choice for organizations seeking to enhance their computational capabilities and maintain high levels of reliability. As businesses continue to evolve and require more from their computing environments, the E8501's technologies and features position it as a reliable foundation for mission-critical applications.